How certain are you of your dummy load, Bill? I've had some which became somewhat inductive above 15 meters, for example -- and that might be a cause of what you are seeing.

73, Phil W7OX

On 2/9/15 8:51 PM, Bill Wilkins wrote:
I am getting an SWR indication in the display of 1.8-1 on 10 meters. That is
with just a dummy load at the antenna port. I get the SWR on 12,15,17
meters, but it gradually drops down from the 1.8 on ten meters.
20 meters thru 160 it is 1.1-1. ATU bypassed.
With a verified 50 ohm dummy it should be 1.1-1 all over the place.
I have emailed Elecraft to see what they say.
Anybody else ever see this problem ?
73, Bill, WD8JWJ

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