[Elecraft] KPA-1500 wish list

Paul Baldock paul at paulbaldock.com
Mon Nov 18 14:34:04 EST 2019


In my experience for  the amplifier gain to be 
flat across a band it requires the output SWR to 
1.1:1 or better. So the solution is to use the 
internal tuner on all frequencies that you do not 
have a perfect match. I have manually tweaked 
(with amp in standby and running 50W) my auto 
learned atu settings to get as close to 0W 
reflected power as possible. It takes a while to do this but its worth it.

- Paul; KW7Y

At 08:29 AM 11/18/2019, N4ZR wrote:
>Here's one that I kept running into.  My 
>K3/KPA-1500 when operating at one end of the 
>band on 40 and 80, would work fine, but when I 
>went to the other end  I found that often I 
>would be running over 1500 watts, and sometimes, 
>the result would be reflected power exceeding 
>200 watts, causing a fault.  For those of us 
>who have the Aux port cable connected, wouldn't 
>it be pretty simple for the KPA-1500 to turn 
>down the K3's power to limit output to 1500 
>watts? -- 73, Pete N4ZR Check out the Reverse 
>Beacon Network at <http://reversebeacon.net>, 
>now spotting RTTY activity worldwide. For spots, 
>please use your favorite "retail" DX cluster. 
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