[Elecraft] KPA500 Question

[Nr4c]

What is your antenna like on 20 meters?  Sounds more like antenna than amp. 

Sent from my iPhone
...nr4c. bill


> On Dec 18, 2016, at 6:08 AM, Joe Hutchens AJ8MH-Radio <aj8mh-radio at charter.net> wrote:
> 
> This is a question I've been wanting to ask...
> 
> I've had a KPA500 for 4 years and I've noticed that 20 meters requires more drive.  Most bands require 30 watts or less, but 20 requires 35-37 for 500 watts out.  In the phone portion of 20, an SWR of 1.4:1 WILL cause a fault.  It's just real sensitive to the load on 20.  I have to use a tuner and make sure I'm close to 1.1:1.  Works fine into a dummy load, but high drive is still required.
> 
> I've lived with it, because I don't operate SSB very often on any band, but lately I've been chasing NPOTA stations and find myself using 20 SSB.
> 
> I assembled the amp, and it's been like this from day one.  Anyone else see this on 20.  Just interested.
> 
> Joe (AJ8MH)
> 
> 
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