David,
Turn it up until you see at least 13.8 on the KX3 when idle, then check
the voltage during transmit. You really can go up to 14.5 volts with
no harm. If the voltage drops by more than 1 volt, you have too much
resistance (too many connections) in the power cord run from the power
supply.
Connect the power cable to the KXPA100 directly to the power supply
terminals. With a 15 amp draw there will be a substantial voltage drop
across a device like a Rigrunner.
73,
Don W3FPR
On 5/14/2017 2:43 PM, David Orman wrote:
Hi,
In order to maximize TX quality and cleanliness from the KXPA100, what
should I aim for regarding input voltage on 100W keydown as seen by the KX3
display option PS? I've got an adjustable Astron VS-70M, but would like to
power other equipment, so am trying to find to sweet spot for the radio
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