Puck,
If the AGC is working on that KX1, it should not become less sensitive
with full rotation of the RF Gain, so I suspect something is not working
in the AGC circuit. If the AGC is not functioning, strong signals can
overload the receiver.
Motorboating can be because of the batteries - normally happens only
when the batteries are near discharge. Try an external supply or brand
name new alkaline batteries and see if it goes away.
Don W3FPR
On 4/15/2018 12:08 PM, hmmjr wrote:
> I recently bought a used KX1 with 4 bands and the ATU. I put in six AA alkaline batteries and made contacts on each of the 4 bands with about 1.5 watt output on each band. All seemed to work perfectly. Yesterday I noticed I could no longer run the RF gain wide open. Doing so greatly reduced the sensitivity. I had to back off on the gain at least one dot to regain normal sensitivity. Also I noticed a motor boating sound in the receiver which had not been there before. Touching the cabinet or moving the rig into different positions changes the the intensity of this sound. I thought perhaps battery voltage was too low so I put in a new set. There was no change. Does anyone have an idea orf what the problem may be?73, Puck W4PM
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