Icom F121 Receiver Sensitivity Problems
Posted: Wed Jan 11, 2012 1:51 pm
Is anyone aware of any known issues with the ICOM IC-F121 series VHF radios that causes receiver sensitivity to go to crap?
I have two units exhibiting this problem. One opens squelch at 15uV (not .15uV, 15uV!) and the other is even worse, needing about 60uV to open the squelch.
I have adjusted the squelch on both units and also performed the BPF alignment using the CS-F100ADJ software. I am using a Motorola R2600 to align the radios and am an experienced RF technician by trade.
There's definitely a hardware issue going on here. Anyone experienced this problem and know of any solutions short of sending it off to Icom for repair?
I am not an ICOM fan, but we have a non-profit that really needs these radios working and I'd like to help them out.
Thanks!
I have two units exhibiting this problem. One opens squelch at 15uV (not .15uV, 15uV!) and the other is even worse, needing about 60uV to open the squelch.
I have adjusted the squelch on both units and also performed the BPF alignment using the CS-F100ADJ software. I am using a Motorola R2600 to align the radios and am an experienced RF technician by trade.
There's definitely a hardware issue going on here. Anyone experienced this problem and know of any solutions short of sending it off to Icom for repair?
I am not an ICOM fan, but we have a non-profit that really needs these radios working and I'd like to help them out.
Thanks!