[Elecraft] Piggy back KPA 1500 onto KPA 100

[Jim Brown]

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?