High SWR on 20 and 40

[dw-4]

I have done this in the past to deal with ladder line length on multi
band use.
cut the following lengths of ladder line.

1 foot
2 foot
4 foot
8 foot

Solder alligator clips on all ends

By using these in combinations, you now have the ability to increase
your line length from 1-15 feet.
Test SWR on the offending bands while adding increments of 1 foot at a
time.
The fact that you are finding the high SWR on both 20 and 40 could
indicate a high impedance point at the input end in 1/4 wave increments.
15' will be an even 1/8 wave on 40 and an even 1/4 wave on 20.
Adding some length of line might push this away from the input end on
both bands.

I will guess that 6' or 9' will be a good numbers to add.

Duane
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