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	<id>https://www.yo3iti.ro/index.php?action=history&amp;feed=atom&amp;title=144MHz_Beacon</id>
	<title>144MHz Beacon - Revizia istoricului</title>
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	<updated>2026-07-26T18:50:52Z</updated>
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	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=411&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 12:47</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=411&amp;oldid=prev"/>
		<updated>2020-01-16T12:47:48Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 15:47&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Linia 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &amp;quot;clasice&amp;quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &amp;quot;digital&amp;quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. În ceea ce privește oscilatorul cu cristal, problema cea mai mare este obținerea frecvenței de 144,8MHz necesare unei balize APRS. Din căutările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvența de 144,8MHz&amp;lt;ref name=&amp;quot;overtone&amp;quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz care să funcționeze în armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text.&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz în armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici]. O variantă este comanda unor cristale cu frecvență personalizată, la unul dintre furnizorii din piață. Pentru proiecte de volum, este cea mai ieftină opțiune (pentru oscilatoate cu quartz, cu zgomot mic de fază). Varianta cu circuite de tip Si5351 este cea mai economică, dar nu oferă aceleași performanțe în ceea ce privește zgomotul de fază.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &amp;quot;clasice&amp;quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &amp;quot;digital&amp;quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. În ceea ce privește oscilatorul cu cristal, problema cea mai mare este obținerea frecvenței de 144,8MHz necesare unei balize APRS. Din căutările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvența de 144,8MHz&amp;lt;ref name=&amp;quot;overtone&amp;quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz care să funcționeze în armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text.&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz în armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici]. O variantă este comanda unor cristale cu frecvență personalizată, la unul dintre furnizorii din piață. Pentru proiecte de volum, este cea mai ieftină opțiune (pentru oscilatoate cu quartz, cu zgomot mic de fază). Varianta cu circuite de tip Si5351 este cea mai economică, dar nu oferă aceleași performanțe în ceea ce privește zgomotul de fază.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;===Status===&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Rev1.0 – Experimental, prototip, realizat.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Rev2.0 – În lucru (schemă, PCB)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=392&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:24</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=392&amp;oldid=prev"/>
		<updated>2020-01-16T10:24:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:24&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Problema &lt;/del&gt;cea mai mare &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a fost &lt;/del&gt;obținerea frecvenței de 144,8MHz necesare unei balize APRS &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;în VHF&lt;/del&gt;. Din &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cercetările &lt;/del&gt;mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frecvențele necesare&lt;/del&gt;&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pentru &lt;/del&gt;armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text.&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pe &lt;/del&gt;armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În ceea ce privește oscilatorul cu cristal, problema &lt;/ins&gt;cea mai mare &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;este &lt;/ins&gt;obținerea frecvenței de 144,8MHz necesare unei balize APRS. Din &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;căutările &lt;/ins&gt;mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frecvența de 144,8MHz&lt;/ins&gt;&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;care să funcționeze în &lt;/ins&gt;armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text.&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;în &lt;/ins&gt;armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. O variantă este comanda unor cristale cu frecvență personalizată, la unul dintre furnizorii din piață. Pentru proiecte de volum, este cea mai ieftină opțiune (pentru oscilatoate cu quartz, cu zgomot mic de fază). Varianta cu circuite de tip Si5351 este cea mai economică, dar nu oferă aceleași performanțe în ceea ce privește zgomotul de fază&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=391&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:14</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=391&amp;oldid=prev"/>
		<updated>2020-01-16T10:14:47Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:14&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. Problema cea mai mare a fost obținerea frecvenței de 144,8MHz necesare unei balize APRS în VHF. Din cercetările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvențele necesare&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz pentru armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz pe armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. Problema cea mai mare a fost obținerea frecvenței de 144,8MHz necesare unei balize APRS în VHF. Din cercetările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvențele necesare&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz pentru armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25MHz. Vezi text&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/ins&gt;&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz pe armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=390&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:14</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=390&amp;oldid=prev"/>
		<updated>2020-01-16T10:14:24Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:14&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. Problema cea mai mare a fost obținerea frecvenței de 144,8MHz necesare unei balize APRS în VHF. Din cercetările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvențele necesare&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz pentru armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;25Mhz&lt;/del&gt;. Vezi text&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz pe armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare LC sau cu cristale, &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]. Problema cea mai mare a fost obținerea frecvenței de 144,8MHz necesare unei balize APRS în VHF. Din cercetările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvențele necesare&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz pentru armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;25MHz&lt;/ins&gt;. Vezi text&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz pe armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Câteva &amp;quot;TODOs&amp;quot; pentru Rev 2.0:===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=== Câteva &amp;quot;TODOs&amp;quot; pentru Rev 2.0:===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* crearea unui proiect în KiCad sau Eagle, pentru generarea unui PCB mai civilizat. :)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* adpugarea unui modulator&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Note==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Note==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=389&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:13</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=389&amp;oldid=prev"/>
		<updated>2020-01-16T10:13:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:13&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut de faza de prototip. Intenția a fost de a experimenta cu oscilatoare &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;LC sau cu cristale, &lt;/ins&gt;&quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Problema cea mai mare a fost obținerea frecvenței de 144,8MHz necesare unei balize APRS în VHF. Din cercetările mele nu există pe piață nici un cristal care să poată genera (direct sau în overtone) frecvențele necesare&amp;lt;ref name=&quot;overtone&quot;&amp;gt;Ar fi necesare fie un cristal de 48,26MHz pentru armonica a treia sau unul de 28,96MHz pentru armonica a cincea. Cel mai apropiat găsit pe Mouser a fost unul de 48,25Mhz. Vezi text&amp;lt;/ref&amp;gt;, cel mai apropiat fiind unul de 48,25Mhz care poate genera doar 144,75MHz pe armonica a treia și pe care l-am găsit pe [https://ro.mouser.com Mouser] [https://ro.mouser.com/ProductDetail/449-LFXTAL024348BULK aici].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=388&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:05</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=388&amp;oldid=prev"/>
		<updated>2020-01-16T10:05:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:05&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut faza &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;prototipului&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;de &lt;/ins&gt;faza &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;de prototip. Intenția a fost de a experimenta cu oscilatoare &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=387&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:05</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=387&amp;oldid=prev"/>
		<updated>2020-01-16T10:05:10Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:05&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Linia 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Test&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ăsta e un proiect mai vechi care nu a trecut faza prototipului&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=386&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:04</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=386&amp;oldid=prev"/>
		<updated>2020-01-16T10:04:32Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:04&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon.jpg|miniatura|top|dreapta|144MHz Beacon, prototip Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon.jpg|miniatura|top|dreapta|144MHz Beacon, prototip Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;‎&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Test&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Variante constructive==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=385&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:03</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=385&amp;oldid=prev"/>
		<updated>2020-01-16T10:03:43Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:03&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Fișier:144MHz Beacon.jpg|miniatura|top|dreapta|144MHz Beacon, prototip Rev1.0]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]] ‎&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]] ‎&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ăsta e un proiect mai vechi care nu a trecut niciodată de faza unui prototip. Intenția a fost de a experimenta cu oscilatoare &quot;clasice&quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &quot;digital&quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;__TOC__  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Documentație===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
	<entry>
		<id>https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=384&amp;oldid=prev</id>
		<title>Yo3iti la 16 ianuarie 2020 10:02</title>
		<link rel="alternate" type="text/html" href="https://www.yo3iti.ro/index.php?title=144MHz_Beacon&amp;diff=384&amp;oldid=prev"/>
		<updated>2020-01-16T10:02:48Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;ro&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Versiunea anterioară&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Versiunea de la data 16 ianuarie 2020 13:02&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Fișier:144MHz Beacon - schema, Rev1.0.png|miniatura|top|dreapta|144MHz Beacon - schema, Rev1.0]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]] ‎&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:144MHz_Beacon - simulare_filtru, Rev1.0.png|miniatura|top|dreapta|144MHz_Beacon - simulare_filtru, Rev1.0]] ‎&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut niciodată de faza unui prototip. Intenția a fost de a experimenta cu oscilatoare &amp;quot;clasice&amp;quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &amp;quot;digital&amp;quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ăsta e un proiect mai vechi care nu a trecut niciodată de faza unui prototip. Intenția a fost de a experimenta cu oscilatoare &amp;quot;clasice&amp;quot;, gen [https://en.wikipedia.org/wiki/Colpitts_oscillator Colpitts], [https://en.wikipedia.org/wiki/Hartley_oscillator Hartley] etc și cu cristale de diverse frecvențe pentru a evalua zgomotul de fază comparativ cu un oscilator &amp;quot;digital&amp;quot; construit, de pildă, pe un [https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf Si5351]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Yo3iti</name></author>
	</entry>
</feed>