Awful scratchy sound monitoring CW side-tone
Posted: Sun Nov 28, 2021 7:23 pm
Been working a contest this week-end, to put the ANAN 7000 DLE MKII (Thetis v.2.8.11) through its paces on CW. I am monitoring and/or listening to the CW side-tone with head-phones plugged into the front audio port on the ANAN. At first I thought the problem might have been caused by the head-phones (it is a quality pair) but all 3 pairs of headphones exhibit the same problem so I would think this has nothing to do with headphones.
Every now and then the audio from the front-port connector gets extremely “scratchy,” similar to the noise that a potentiometer in need of cleaning makes! The sound stays on and while I am listening/monitoring the band it gets so bad that it is very difficult to hear actual stations! I can get rid of the racket if I switch off Thetis by clicking on the soft icon at top left-hand corner and switching it back on. That done, the radio works well with the awful “scratchy” sound gone only to appear again at some point.
Any thoughts on the cause for the above?
Other ways to monitor the side-tone when on CW that hopefully won’t suffer from the same phenomenon described above?
Best!
JJ
Every now and then the audio from the front-port connector gets extremely “scratchy,” similar to the noise that a potentiometer in need of cleaning makes! The sound stays on and while I am listening/monitoring the band it gets so bad that it is very difficult to hear actual stations! I can get rid of the racket if I switch off Thetis by clicking on the soft icon at top left-hand corner and switching it back on. That done, the radio works well with the awful “scratchy” sound gone only to appear again at some point.
Any thoughts on the cause for the above?
Other ways to monitor the side-tone when on CW that hopefully won’t suffer from the same phenomenon described above?
Best!
JJ