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[TowerTalk] Question about triband Quad.

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Subject: [TowerTalk] Question about triband Quad.
From: (
Date: Sat, 2 Feb 2002 21:22:58 EST
I have recently put together a 2 element triband quad. 20 & 15 M work good, 
with a under 2.0:1 over full band (<1.4 over most).
10m VSWR is unacceptably high (3:1 or so over full band.
I have checked all connections and dimensions, all OK. Feed is a single feed 
line through a balun and then a length of 75 ohm twinlead to a common 
connection of all three bands. 
I arranged to isolate just the 10 m DE, and it shows a 2:1 VSWR over band.
I was under the impression such antennas were common an presented a good 
match on all bands.  I plan to test the balun soon, and also considering a 
2:1 W2FMI transformer.
Any thoughts or comments appreciated.
Bob, W5LT

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