Scot,
Thanks for the heads UP. I bought an new Chushcraft AW3 antenna. I got to
install it one day B-4 My Major Lightning Strike ( READ UGLY)
Long story short I never did a VSWR sweep because there were storms in the area
and I hate being on a tower or handling coax lines with thunder heads in the
area.
Well testing last week the 12 meter band sweep was 1:23 -1 BUT the 17
meter was 2:2-1 @ 18.070 and 3:5-1 @ 18:165 I took it down yesterday and
am assuming it’s a trap issue.
Again I assume I’ll have to pry the other coil cover up to gain access to the
coil’s stay tuned
I do not want to point fingers to MFJ yet
Wayne W3EA
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of K9MA
<k9ma@sdellington.us>
Sent: Thursday, September 12, 2019 2:22:02 PM
To: towertalk@contesting.com <towertalk@contesting.com>
Subject: [TowerTalk] Cushcraft/MFJ Traps
I recently ordered some replacement traps for my old A3S. One was
defective, so I took it apart. I was appalled at the poor quality. While
the original traps had several pop rivets, in addition to the coil
screws, connecting the tubing to the plastic insulator, the MFJ version
had only the two screws in the very end of the tubing. The coil wires
were sometimes wrapped the wrong way around the screws, and some of the
screws weren't even tight. Where the original coil was coated with some
kind of thick lacquer, the MFJ ones were bare.
The moral of the story is don't even think about going to the trouble of
putting up an MFJ/Cushcraft beam without taking apart all the traps and
fixing the above problems.
73,
Scott K9MA
--
Scott K9MA
k9ma@sdellington.us
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