[Elecraft] SWR on 40 meters

K9MA k9ma at sdellington.us
Wed Jan 4 00:48:41 EST 2017


How does the current drawn by #1 compare to that of #2 on 40 at the same 
output power, same dummy load, etc?  Power should be measured with an 
external meter.  It doesn't have to be very accurate, just repeatable. 
If the currents are about the same, I'd suspect the SWR bridge in #1.  
If not, things get more interesting.

Scott  K9MA




On 1/3/2017 23:34, Mike Wetzel wrote:
> All of a sudden (I think) the SWR on one of my K3's (#1) is showing 1.5 to 1
> into a dummy load on 40 meters only.  All other bands the K3 (#1) shows 1 to
> 1, my other K3 (#2) shows 1 to 1 on all bands using the same dummy load and
> same piece of coax.  I also noticed that on one antenna where the SWR is 2
> to 1 on a bridge (and on K3 (#2)) it shows 1 to 1 on the K3 (#1).  I guess
> this really doesn't affect anything (maybe power roll back).
>
>   
>
> K3 (#1) has no ATU but new synt boards.  K3 (#2) has an ATU (in bypass mode)
> but the older synt boards.
>
>   
>
> Any ideas and thanks,
>
>   
>
> Mike W9RE
>
>   
>
> ______________________________________________________________
>


-- 
Scott  K9MA

k9ma at sdellington.us



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