[Elecraft] Cal AT100 SWR bridge

Dan Barker dbarker at visioncomm.net
Fri Sep 24 07:22:39 EDT 2004


Is the Diawa between the K2 and the Tuner, or between the Tuner and the
Antenna?
Is the Antenna resonant?

You should not expect a "flat" SWR after the tuner unless the
antenna/feedline system is a perfect match - That's the purpose of the tuner
in the first place.

To compare apples to apples, check the SWR of the same thing at the same
spot. IE, put the Diawa in the line only, measure SWR, remove the Diawa and
put the KAT100 in line using the same connectors and cables, turn off the
Auto-tuning function (I forget - CALP?), and check again - Same frequency,
Same antenna, Same feeders, Same cables, jumpers, connectors and testing
location.

Let us know what you find.

Dan / WG4S / K2 #2456

<snip>
it may be as high as 4:1 on some bands even when the tuner says it is flat
or near flat.
</snip>



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