I've noticed something unusual on version 3 with my Orion 565. When
using the stock sub receiver, it's almost impossible to find "zero beat"
when tuned to an AM station
while in the SSB modes. When using previous versions of the firmware, it
is easy to hear the "swishing" or "chuffing" sound when approaching zero
beat while in either the USB or LSB modes. With version 3, that sound is
simply not there. I've noticed this on WWV as well as with shortwave
broadcast stations. I sometimes use the USB or LSB modes on AM signals
to eliminate interference. I also use WWV this way to check the receiver
calibration.
Has anyone else noticed this?
Tnx es 73, Mike, NM7X
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