[TowerTalk] 80 meter stub

[Patrick Greenlee]

I have a Hy-Gain Hy-Tower vertical working on 7 bands.  It has stubs 
attached at various locations on the tower portion.  With this arrangement 
longer is lower in freq. as in many other situations.

I have 4 each 10 ft sections of Rohn 25 and a 9 ft top section.  My current 
thinking is to erect it on insulators and try to build a DIY version of the 
Hy-Tower complete with multiple stubs. Anyone want to mention any pitfalls 
or difficulties I might encounter?

Patrick NJ5G


-----Original Message----- 
From: Tom Osborne
Sent: Friday, December 13, 2013 12:46 PM
To: Towertalk
Subject: [TowerTalk] 80 meter stub

Hi All

I've been making some more stubs, but in doing that, my MFJ-259B died.

I cut one for 80, just using measurments determined by VF, etc, and came
up with a stub (length (I know it's probably not spot on).

The problem is, when I connect it, it moves the 1:1 SWR point from about
3560 (where I want it) down to about 3470.

Does that mean the stub is too long?  Thanks and 73
Tom W7WHY

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