FP Mic 8 volts
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Hello all, While trying different front microphones (Dynamic & Electret) I noticed that 8v on pin 6 of the mic socket is always present no matter if I set bias to on or to off. What am I missing please? 73, Isaac, 4Z1TL --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Oops... I think I messed up...It's the voltage to MIC input pin 1 that's
affected by bias on off. Isaac, 4Z1TL -----הודעה מקורית----- מאת: TL_Netvision <[hidden email]> נשלח: Friday, 24 August 2018 18:54 אל: '[hidden email]' <[hidden email]> נושא: FP Mic 8 volts Hello all, While trying different front microphones (Dynamic & Electret) I noticed that 8v on pin 6 of the mic socket is always present no matter if I set bias to on or to off. What am I missing please? 73, Isaac, 4Z1TL --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by 4z1tl
If using a dynamic mike you should not have any connection to pin #6
anyway. So it would make no difference. The BIAS On and Off applies to the back panel mike connection. 73 Bob, K4TAX On 8/24/2018 10:53 AM, TL_Netvision wrote: > Hello all, > > While trying different front microphones (Dynamic & Electret) I noticed that > 8v on pin 6 of the mic socket is always present no matter if I set bias to > on or to off. > What am I missing please? > > 73, Isaac, 4Z1TL > > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Bias on and off applies to the front panel mic Pin 1 as well as the tip
of the rear panel jack. It depends on whether you have the FP or the RP selected. Some Kenwood desk mics do use the power pin, but those Kenwood mics use pin 5 instead of pin 6 for power, so you would have to re-wire the mic plug to use them. 73, Don W3FPR On 8/24/2018 7:37 PM, Bob McGraw K4TAX wrote: > If using a dynamic mike you should not have any connection to pin #6 > anyway. So it would make no difference. The BIAS On and Off applies > to the back panel mike connection. > > 73 > > Bob, K4TAX > > > On 8/24/2018 10:53 AM, TL_Netvision wrote: >> Hello all, >> >> While trying different front microphones (Dynamic & Electret) I >> noticed that >> 8v on pin 6 of the mic socket is always present no matter if I set >> bias to >> on or to off. >> What am I missing please? >> >> 73, Isaac, 4Z1TL >> >> >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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