How to make GM360 to TX link radio?

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asdfg
Posts: 50
Joined: Tue Apr 19, 2005 4:37 am

How to make GM360 to TX link radio?

Post by asdfg »

I want to use some Motorola GM360 UHF, as a link, so I want to make external PTT trought accessory connector (20 pins) and input TX audio trought (via) same connector. For external PTT it is clearingly to me that pins can be program (voice PTT), but I don't know which pin to use to input TX audio?
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Paul
Posts: 236
Joined: Sun Sep 09, 2001 4:00 pm
What radios do you own?: You can't imagine!...

Post by Paul »

If I recall well, mic audio in is pin #1. Usualy ext. ptt is pin #3, gnd is #7.
Take care with the pin numbering. Pin #1 is SECOND in the row...
There are 10 kind of people: Those who understand binary and those who don't.
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asdfg
Posts: 50
Joined: Tue Apr 19, 2005 4:37 am

Hi Paul!

Post by asdfg »

Pin#1 is audio output from GM300, together with pin#16,
Pin#3 is voice PTT
Pin#5 is audio input (TX audio taht I need)
Pin#8 is PL/DPL detect.
Everithing is working but audio input not, that does not produce FM deviation when GM3600 go on transmmiting. WHY IS THAT?
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asdfg
Posts: 50
Joined: Tue Apr 19, 2005 4:37 am

Hi!

Post by asdfg »

Now I understand. Pin#2 is MIC input, but should be enable by software.
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