Gary,
Since you get no ALC bars when the fault occurs, the problem is either
in your Signalink or the audio input section of the KX3.
It could be as simple as an intermittent audio cable connection or a
fault in the audio wire.
If you have an audio amplifier available (like one of those used with an
iPOD or similar), plug the cable that you normally plug into the KX3 and
see if you have the digital tones coming out of the Signalink and that
audio cable - you will hear audio only in the left channel, the
Signalink does not use the right channel.
Since you say FM appears to be working, that sounds like the KX3 mic
audio is not at fault.
If everything works into a dummy load, check your antenna system to
determine if the cause may be RF in the shack that is bothering your
Signalink.
73,
Don W3FPR
On 7/13/2015 12:35 PM, Gary Hawkins wrote:
Thus, I would have to conclude the problem is an intermittent behavior
rather than setup issue. It seems to me the KX3 TX is shutting down
in response to some fault condition. PA temp is well below max, and
no other error messages are observed. Unlike when the unit powers
down due to high temp, the power setting remains at 10W. ALC shows
zero bars.
While trying the tune function on WSJT-X after fault condition, I
increase mic gain and ALC bars start to briefly show and TX power
briefly flickers on power meter. However, within a second so the ALC
bars drop back to zero and so does the power. Increasing the mic gain
again results in similar behavior.
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