[Elecraft] Re: k3 SWR readings seem generous

[wayne burdick]

Stewart Baker wrote:

> The K3 output was from ANT1 using the internal ATU. The ATU was
> automatically tuned to 1:1 on all bands.
> The results I got for 2:1 VSWR are as follows:-
>
> 			   LP-100		    K3
> 160         1.99                1.8
> 80           1.99                1.8
> 60           1.99                1.8
> 40           1.95                1.8
> 30           1.97                1.6
> 20           1.97                1.4
> 17           1.97                1.3
> 15           1.96                1.2
> 12           1.96                1.5
> 10           1.96                1.4

Much of this could be attributed to the different locations of the two 
bridges (see my previous email). Strays will vary from band to band.

Also, the K3's bridge will be a little more accurate at 100 W than at 
10 W due to the bridge diode drops. I compensate for this to some 
degree in firmware, and I'll review it when I get a chance.

73,
Wayne
N6KR

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