Can anyone please enlighten me on whether the UP and Down feature on the
microphone connect work against ground or +8 volts dc. Although I purchases the
optional electret style of hand microphone, I much prefer a good dynamic
microphone. I'm presently using the Shure 444D dynamic desk microphone with
excellent transmit audio report. I've just tried a dynamic hand mic meant for
the TAD line of commercial radios with also excellent transmit audio. This hand
mic also has the UP and Down buttons so I would like to wire that feature but
need to know as to whether it works against ground or + 8 vdc. I will be
selling the factory electret hand mic for anyone interested.
Fern
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