[Elecraft] KPA-1500 Power Output Variation

[Don Wilhelm]

Jim,

It would be informative to know where you are observing the power variation.
In the feedline after the KAT1500 with your Bird WM or on the KPA1500 
panel display (or the KPA1500 Utility)?

73,
Don W3FPR

On 8/24/2019 3:58 PM, Jim McCook wrote:
> Antenna is 2 el. delta.  Uses 1/4 wave 70 ohm matching section. 
> Described in ON4UN's Low Band DXing.  Used for 38 years with various 
> tube amplifiers and no tuners.  All coax has been replaced as recently 
> as 10 years ago.  SWR measurements always similar.  Power output with 
> tube amps does not vary visibly on a Bird WM.  Same situation currently 
> with a tube amp substituted.  Feedline from matching section about 50 
> ft.  I know how to match antennas.:-) I have seen the usual reactance 
> measurement on each side of design frequency of 7.025.  The built in 
> tuner is the one I was referencing.  The KPA-1500 comes with one.
> 
> Jim
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