Volume slowly decreases with two slices open and not listening to a station

  • 1
  • Problem
  • Updated 3 years ago
  • Not a Problem
I rarely listen with two slices open however this time I was focusing on getting my Mic configured using the FDX mode.

After about 10 minutes I started to hear the volume levels slowly decrease till I heard almost nothing then it increased.  Both the S meter and spectrum showed no difference thus why it seemed to me to be a volume issue.

When I changed to where a station was transmitting the volume quickly jumped back up to normal.  But if I left both in the white noise it would happen.  It was reproducible during the same session almost all the time.  When I closed one slice I have not seen this issue.

I will keep on the look out for this phenomenon but has anyone else seen this?
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Mike KD2CJJ

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Posted 3 years ago

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Photo of George Molnar, KF2T

George Molnar, KF2T, Elmer

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Official Response
If both slices are on the same frequency, you could be seeing phase cancellation, with he cycling rate equal to the (very small) difference in tuning.