[Elecraft] [w2/K3] High SWR

[Geoffrey Mackenzie-Kennedy]

Hello Don,

Three questions:

Are both of your W2 and Antenna Analyzer powered from a PSU or a battery?

Do you have any form of common mode choke installed at the junction of the 
coax and open wire feeders, or elsewhere along the coax?

Does the SWR reported by your W2 change at all (on any or all bands) if you 
hold and slide your hand along that part of the coax feeder which you can 
reach?

73,

Geoff
LX2AO


On November 09, 2012 at 3:29 AM, Don KA1KU wrote:

<snip>


> My MFJ 259 analyzer shows 1.1 to 1 at some point in most bands from 80 to 
> 6
> With G5RV connected, I get a much different picture.  On every band from 
> 160
> to 80 I get a SWR reading full scale, 5.  On 6m the reading is 3.  The
> internal tuner matched each band to 1.0 or 1.1 hto 1.  Again, I understand
> this means nothing in regard to W2 reading.  What I don't understand is 
> why
> I have such a high SWR, especially since the antenna analyzer indicates a
> close match, 1.0-1 at 7.17MHz, which I used as my test frequency on 40m. 
> I
> also get SWR of 5 when ATU is in bypass.  This is repeated on every band,
> using the frequency of lowest SWR indicated by the antenna analyzer.
>
> I also see odd power readings.  For example, on 40m, with K3 power set at
> 1.0 the W2 shows 4 Watts.  At 5, the W2 shows 14.  This too is similar
> across all bands.

<snip>