Icom F121 chop-out while using PL CTCSS Tone?

Forum dedicated to discussion on Icom Commercial Radio products such as F70, F80, F1721, F2821, F9011, F9021, F9411, F9521, F9511HT.
Post Reply
N3HIA
Posts: 1
Joined: Thu May 02, 2019 6:42 am

Icom F121 chop-out while using PL CTCSS Tone?

Post by N3HIA »

I have a link setup for a repeater using (2) Icom F121 VHF units and I use a PL/CTCSS tone to keep it clear. I am experiencing what seems to be audio chop-out on voice peaks ONLY when the PL tone is on. I am not detecting any over-deviation, tx freq is dead on, and I have adjusted the PL tone level up and down (DTCS/CTCSS deviation setting in CS-F100 software) and experienced no change. When I turn off the PL tone, the audio does not chop out. If I reduce the transmitter audio to a lower level, it does not chop out - but then the audio is too low.

I have purchased an extra F121 and swapped out the transmitter side of the system and there was no change in the symptom.

Thoughts?
Thanks! Rick N3HIA
Post Reply