rx hash in my ears when MOX is applied during cw sending.

  • 1
  • Question
  • Updated 2 weeks ago
Using SSDR 2.2.8, N1MM+ and SSDR CAT winkey emulator. N1MM+ asserts PTT to send a cw message and MOX button on SSDR goes blue to show PTT being permanently applied during the sent cw message. Why do I hear rx hash between the sent cw letters? According to SSDR MOX is applied, but it allows RX hash into my ears between letters as if it were in QSK mode? SSDR seems to think it can ignore its own MOX???
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
  • confused

Posted 6 months ago

  • 1
Photo of Kari Gustafsson SM0HRP

Kari Gustafsson SM0HRP, Elmer

  • 234 Posts
  • 20 Reply Likes
Hi, no idea. But why do you use PTT to send CW? Have you tried regular winkeyer settings? Still same behaviour?
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
Hi Kari,
I use PTT to put the radio into transmit. The problem is that SSDR doesn’t obey. Thanks for your interest in my problem, there doesn’t seem to be any cw contesters here to advise Flex with this problem as this has been reported for years. I know I can use a proper winkey but it’s annoying that the Flex’s emulator doesn’t work properly.
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
I am now using an external winkey and I still have the same problem. If break-in is disabled, and PTT is applied, I get rx hash in my ears between sidetone elements. The antenna is not connected to the receiver during this time so why decode the receiver to audio?
Photo of Andy - KU7T

Andy - KU7T

  • 176 Posts
  • 17 Reply Likes
I see the same thing with my 6600M and have always wondered why I would hear anything between dits when PTT is applied. I think this may be a (small) bug. Have you opened a help desk ticket yet?


73

Andy

KU7T
(Edited)
Photo of Barry Simpson

Barry Simpson

  • 24 Posts
  • 2 Reply Likes
Yes it is something that I have also mentioned in previous posts. From time to time I use a foot switch to put the 6600M into manual transmit for CW and it sounds as if simply the antenna has been disconnected but otherwise the receiver is at full sensitivity. It does not make for relaxing keying and the receiver should be totally muted with only the keying sidetone being audible.

Barry Simpson VK2BJ
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
Are flex staff or a contest elmer still monitoring this discussion forum for continual improvement of the product? I don’t know if this bug is already reported and in the long list of Flex’s to do’s. This bug has been talked about here for years and in my opinion is a deal breaker for cw contesting with any 6000 series radio. Using break-in is not a solution for me as I feel this is sub optimal for serious cw contesting.
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
Guess we are in the keep net
Photo of Douglas Maxwell

Douglas Maxwell

  • 96 Posts
  • 16 Reply Likes
Just finished the UKRDX contest. Was using N1MM+ and the Flex 6500 with SSDR 2.4.9. and an external winkey. It was very tiring on the ears due to the long standing SSDR PTT in CW bug. How Flex gets away with this after >1 year I don’t know, it’s not as if CW is a minority mode. Anyway I ended up turning the sidetone right down so I didn’t worry about the rx/tx change over relay. I did keep checking the amp to see if it was being thrashed but it seemed to be in solid tx when sending. I’m pretty sure it’s just a bug with audio rather than PTT handling but turning the sidetone down very low helped with the damage to my ears!