I don't think you can check and antenna SWR this way. If you could pull it
up 40' or tip it so that the beam is pointing toward the sky, you may get
more usable data.
John KK9A
To: towertalk reflector <towertalk@contesting.com>
Subject: [TowerTalk] SteppIR SWR question
From: Mike <nf4l@nf4l.com>
Reply-to: nf4l@nf4l.com
Date: Fri, 29 Apr 2011 17:01:02 -0400
My 4L SteppIR with the 30/40 M trombone is on sawhorses in the front yard.
It
was
down to replace the driven element motor. The climber and crane are
scheduled
to put
itback on the tower tomorrow morning.
After I replaced the motor, I ran an SWR check from 7.005 to 29.5. The SWR
ot
the
lower end was 7.2, lowering as the frequency went up, til at 29.5 it was
1.0.
Considering the proximity to ground, I can accept that range.
Today ( 10 days later) I checked again, and the SWR range had gone up to 8.2
to
2.2.
Nothing has changed, except we had rain last night, so the ground is a tad
damper.
How concerned should I be, and what would you check? I really don't want to
get
it in
the air and have a problem.
73, Mike NF4L
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