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GTX 900 as Repeater Control RX ?

Posted: Wed Dec 31, 2003 12:07 am
by d119
Planning on using a 900MHz GTX as a control recever in the 926-927MHz range. Will it work OK for this? Where are the COS and PL Indicate points in the GTX radio for interface to the controller?

Thanks!

Re: GTX 900 as Repeater Control RX ?

Posted: Sat Jan 03, 2004 3:50 pm
by n_zero_ndp
d119 wrote:Planning on using a 900MHz GTX as a control recever in the 926-927MHz range. Will it work OK for this? Where are the COS and PL Indicate points in the GTX radio for interface to the controller?

Thanks!
I can't believe nobody has an answer to this one. I know somebody has access to the service manual out there, c'mon folks :roll:

thank you

Posted: Wed Jan 07, 2004 11:50 am
by n_zero_ndp
A big thank you to everyone in the following thread to help shed some light on where to find COS on the GTX mobile:

http://batboard.batlabs.com/viewtopic.php?t=26607

Posted: Thu Jan 08, 2004 12:53 pm
by d119
Nand:

Unfortunately that image isn't working anymore, can you post it again? And is this a PL/DPL controlled connection or COS controlled?

Thanks!

Posted: Thu Jan 08, 2004 1:22 pm
by n_zero_ndp
d119 wrote:Nand:

Unfortunately that image isn't working anymore, can you post it again? And is this a PL/DPL controlled connection or COS controlled?

Thanks!
Looks like it is COS only...better than nothing :)
I will PM Nand about the pics link being down.
Nand wrote:It is a CMOS output that is high when a carrier is detected.