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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dokonca to nie su ani PIN diody, len obycajne RF switch diody.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Myslel som ze sa pouzivaju len na male signaly, cize pre RX ano<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">ale TX?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Hw-list [mailto:hw-list-bounces@list.hw.cz]
<b>On Behalf Of </b>Zuffa Jan<br>
<b>Sent:</b> Tuesday, March 05, 2019 8:55 AM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> RE: vysielacky FSR<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Zaujimavo je riesene pripojenie RX k antene.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Pri prijme je je PA odpojene pomocou PIN diod,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">pri vysielani sa ide do RX aj anteny naraz.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">su tam len dve antiparalelne diody aby to neodrovnalo vstupny tranzistor<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Hw-list [<a href="mailto:hw-list-bounces@list.hw.cz">mailto:hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Jan Kuba<br>
<b>Sent:</b> Monday, March 04, 2019 7:45 PM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> Re: vysielacky FSR<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Ten "hustý" filtr je "jen" dolni propust PA , jinak je to široké od 0 do hodně...<o:p></o:p></p>
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<p class="MsoNormal">Selektivita na vstupu veškerá žádná :-(<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style="text-decoration:none"><img border="0" width="46" height="29" id="_x0000_i1025" src="https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"></span></a><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:13.5pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#41424E">Bez virů.
<a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank">
<span style="color:#4453EA">www.avast.com</span></a> <o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">po 4. 3. 2019 v 18:01 odesílatel Zuffa Jan <<a href="mailto:ZuffaJ@cgc.sk">ZuffaJ@cgc.sk</a>> napsal:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dnu bude teda nieco ako toto:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="https://www.allaboutcircuits.com/news/teardown-tuesday-baofeng-amateur-radio-transceiver/" target="_blank">https://www.allaboutcircuits.com/news/teardown-tuesday-baofeng-amateur-radio-transceiver/</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Na vstupe husty LC filter ziadne SAW...</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Hw-list [mailto:<a href="mailto:hw-list-bounces@list.hw.cz" target="_blank">hw-list-bounces@list.hw.cz</a>]
<b>On Behalf Of </b>Jan Kuba<br>
<b>Sent:</b> Monday, March 04, 2019 5:44 PM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> Re: vysielacky FSR</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Je to GF-T3 nebo BF-T3 ...?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">BF-T3 se vyrábějí i v EU provedení s PMR kanály. Nic bych za to nedal, že deska je stejná a model se volí nějakými propojkami na desce.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">SAW filtry se používaly u kvalitních radiostanic ( i PMR ) dnešní dolarové výrobky nemají na vstupu už vůbec žádný filtr.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">A rádio už není většinou řešené ani jako superhet ale jako SDR transceiver s jednoúčelovými obvody.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://www.verical.com/datasheet/rda-microelectronics-misc-transceivers-rda1846-488565.pdf" target="_blank">https://www.verical.com/datasheet/rda-microelectronics-misc-transceivers-rda1846-488565.pdf</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style="text-decoration:none"><img border="0" width="46" height="29" id="gmail-m_2357912358043333986_x005f_x0000_i1025" src="https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"></span></a><o:p></o:p></p>
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#41424E">Bez virů.
<a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank">
<span style="color:#4453EA">www.avast.com</span></a> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">po 4. 3. 2019 v 16:06 odesílatel iko <<a href="mailto:iko.ikoon@gmail.com" target="_blank">iko.ikoon@gmail.com</a>> napsal:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">zdravim<br>
<br>
dostali sa mi do ruky vysielacky FSR, pasmo 462-467MHz. Predpokladam, ze<br>
su u nas neni povolene. Alebo sa mylim? Zmenit frekvencia na 446 sa asi<br>
neda jednoducho, ked tak ich hodim do kompostu. Je to nejaka BAOFENG GF-T3.<br>
<br>
-- <br>
iko<br>
<br>
Odoslané z môjho osobného počítača pomocou protokolu SMTP.<br>
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<p class="MsoNormal">_______________________________________________<br>
HW-list mailing list - sponsored by <a href="http://www.HW.cz" target="_blank">
www.HW.cz</a><br>
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