Something from M squared?
-----Original Message-----
From: jimk8mr--- via VHFcontesting <vhfcontesting@contesting.com>
To: vhfcontesting <vhfcontesting@contesting.com>
Sent: Thu, May 5, 2016 3:11 pm
Subject: [VHFcontesting] CushCraft 729B Matching
Not exactly a contesting question, but I've encountered a problem with my
CushCraft 729B 432 yogi. (And until I figure it out, I won't make many contest
QSOs on 432 :-) )
I noticed a higher than expected SWR - 2.5 or so - and figured it was probably
a hardline connector problem. Went up the tower, no issues with the connector.
Same VSWR looking into the antenna. I brought it down to ground level, working
off a wooden deck at 10 feet. No adjustment of the matching network gets a good
SWR at 432 MHz. I can get a good match around the 420 and 448 MHz range, but
not at 432.
The matching network black box (a rigid coax phasing line) is clean & dry
inside.
Any thoughts or experience with this issue? Any good replacement driven element
assemblies that I might substitute?
73 - Jim K8MR
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