I’ve made phasing lines for two Arrow antennas. I decided to use my
RigExpert to first check SWR on the antennas and found some surprising
results. At 435 mhz, which is close to where much of the satellite activity
is, I’m seeing 3:1, at 437 mhz it’s 2.4:1 and it’s best reading of 1.3:1 is
at 440 mhz.
I’ve successfully used a single Arrow from my summer QTH for years and it’s
measurements are much better than this brand new 2nd Arrow.
I’ve tried adjusting the match and that seems to make no real improvement
in terms of lowering the resonant frequency on 70cm.
There doesn’t seem to be such a problem on the 2 m side.
I really need to get both antennas to have a reasonable and similar SWR
readings at 436 mhz before introducing the phasing lines and so far I’m
having real trouble making that happen. Any suggestions will be
appreciated. And yes I’ve checked to make sure I built the antenna properly
with all of the elements in the right places.
Rick, W2JAZ
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