TX/RF Offset Question

General support for the Pi-Star System
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KC6N
Posts: 52
Joined: Mon May 07, 2018 5:07 am

TX/RF Offset Question

Post by KC6N »

Can someone help me understand the TX/RX Offset setting? I am seeing occasional high BER in P25 (3.7% and such). I have been doing a trial and error adjustment and find that +250 has made it better but is there a way using a frequency counter (assuming I can find a good accurate one) to set this "spot on". Can I put the HS in transmit and tune this for zero error (for example).

Thanks, KC6N


This is related to a ZUM Spot Pi-Zero setup.
KC6N
Posts: 52
Joined: Mon May 07, 2018 5:07 am

Re: TX/RF Offset Question

Post by KC6N »

Jason --

Thanks for that I did not know that program was in there. I gave it a try and it looks like 200 is good. We'll see if things work better.

Dave
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