My Icom F3161T that I have had for almost 3 years has started giving me some trouble (or maybe I'm just now noticing it).
The first issue is a delay in unmuting the audio on carrier squelch channels. It always seems to cut off around the first 100-150ms of CSQ transmissions (slightly less than it takes to decode CTCSS/DCS). Channels with CTCSS/DCS on receive seem to take the normal ~200ms to open up. I have tried everything I can think of to stop it, including making sure power save was off, disabling MDC DOS (even though MDC itself isn't enabled) and making sure channels are set to analog only (even though there's no digital board); all with no success. I have never had a problem like this on any other radio.
Another issue is a weird pulsing hum/whine noise in the TX audio when the mic gain is set at 2 or above, getting worse as the gain is increased. It kind of sounds similar to alternator whine I sometimes hear in mobiles. It isn't very consistent and doesn't do it on all channels, sometimes goes away after I transmit a couple of times, and stops when I put my finger very close to or on the mic. I believe it may be RF getting into the mic and causing problems. Also at one point I had problems with what sounded like wind noise or flutter as I pressed and released the PTT, but it seems to have gone away.
Anybody ever had any of these problems or know how to fix them?
Thanks in advance!
The first issue is a delay in unmuting the audio on carrier squelch channels. It always seems to cut off around the first 100-150ms of CSQ transmissions (slightly less than it takes to decode CTCSS/DCS). Channels with CTCSS/DCS on receive seem to take the normal ~200ms to open up. I have tried everything I can think of to stop it, including making sure power save was off, disabling MDC DOS (even though MDC itself isn't enabled) and making sure channels are set to analog only (even though there's no digital board); all with no success. I have never had a problem like this on any other radio.
Another issue is a weird pulsing hum/whine noise in the TX audio when the mic gain is set at 2 or above, getting worse as the gain is increased. It kind of sounds similar to alternator whine I sometimes hear in mobiles. It isn't very consistent and doesn't do it on all channels, sometimes goes away after I transmit a couple of times, and stops when I put my finger very close to or on the mic. I believe it may be RF getting into the mic and causing problems. Also at one point I had problems with what sounded like wind noise or flutter as I pressed and released the PTT, but it seems to have gone away.
Anybody ever had any of these problems or know how to fix them?
Thanks in advance!
