tgundo2003 wrote:

> It seems that my users that have newer Motorola "Astro" series radios
> have a problem on my Micor UHF repeater where the PL does not always
> open up their radios. It seems that it's only Astro type radios that
> have the problem.

Do they decode PL properly from anything other than your repeater?

(Simplex -- have someone transmit on the output with the right tone so 
they're not changing channels, in case they programmed the rigs wrong.)

> I have the PL Deveation set at 1K. It's generated internally on the
> uni-chassis TX PL board.

Sounds kinda high to me.  Who wants to listen to CTCSS on all the rigs 
that don't filter it well/or at all?  Many radios I've tested with will 
open consistently as low as 300, but for "most" rigs to decode, 650 
seems a good compromise.

Maybe you're flat-topping something in the PL-generation circuit and the 
newer rigs are looking for the whole waveform instead of zero-crossings.

Have you looked at it on a scope?

I'd start with proving their radios work correctly on the programmed 
channel for your repeater first.

Nate WY0X

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