Since the input is clearly marked MONO, a tip-sleeve is the correct plug. If one uses a TRS plug, the ring should be connected to the sleeve inside the plug.
Using a mike which has an XLR, pin 2 should connect to the Tip, pin 3 to the sleeve, and the shield only connects to XLR pin 1 at the mike. It does not connect to the sleeve at the radio. Bob, K4TAX Sent from my iPhone > On Jun 9, 2020, at 10:20 PM, Nr4c <[email protected]> wrote: > > If yuh ou use a TRS plug, don’t use the “ring” for anything. > > Extending the pin 1 wire out of the connector and connecting to the radio > “Ground” lug is also tecvonended in some circles. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 9, 2020, at 4:51 PM, Tony <[email protected]> wrote: >> >> All: >> >> I have a follow-up question regarding balanced mics and unbalanced >> connections. I'm about to connect a balanced dynamic microphone (Heil >> PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono >> connection. >> >> One recommendation was to connect XLR pin #2 mic (+) to the tip of the 1/8" >> jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or ground is >> left floating with no connection. A 1/8" mono jack was recommended for this >> setup. >> >> The other recommendation was to connect pin #2 to the tip and pin #1 and #3 >> to the sleeve of the 1/8" jack. It was also suggested that I can use either >> a 1/8" mono or a stereo TRS jack in both cases. >> >> So which is correct? >> >> Tony -K2MO >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [email protected] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
