The KPA1500 has a great tuner. Like all Elecraft amps and tuners, it has
nearly instantaneous automatic frequency detection and band-switching. A
single dit or tap on the mic is all it takes. I used it for years with
nothing but the front panel controls, which consist of a switch between
two outputs, Tuner In or Bypass, and Tune.
There are many antenna choices that are better than the one you're using
and want to "upgrade." Because it's off-center fed, it's inherently
noisy on receive, and cannot be effectively choked to reduce that noise.
A choke that does anything useful is going to fry. With antennas like
this, we're essentially "deaf" -- because of all the noise, there are
lots of stations we can't hear.
73, Jim K9YC
On 3/11/2024 12:28 PM, Karl W Hubbard via Elecraft wrote:
This question may have been answered in the past.
I have a KX3 and a KPA100, both with ATUs. Can I power up my TX via addition
of a KPA1500, assuming I upgrade my antenna (Buckmaster 300watt OCFD 8 bander)
to the 3000 watt version ? If feasible without risk of blowing up anything,
and assuming the KPA 1500 also has a built-in autotuner, at what stage should
auto tuner control be established?
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