[TowerTalk] TH6 SWR on 10m

Mike & Coreen Smith ve9aa@nbnet.nb.ca
Sat, 15 Sep 2001 14:26:23 -0300

Has anyone ever had the "resonant" dip on their TH6 appear way down on 27.6
Mhz or lower?

I have a TH6 @ 42' and the SWR's low points (1:1) are
20.870MHz , 14.100MHz & 27.6MHz
On 15m/20m it's not too much of a problem as the bandwidth is wide enough to
pretty much cover me on the CW and LO-Phone portions of the band,  but on
10m it's too low and the dip is quite sharp

Seems it's set a wee lower than it should be in freq for 10m. There's also a
dip on 28.9MHz (2.1:1)

My real question is whether I can change anything by removing only the
driven element. Taking the entire beam down is pretty much out of the
question.  I "think" I might be able to remove only the driven. (anyone
tried this?)

I am feeding it with about 75' of 3/4" 75Ohm CATV line.

Michael, Coreen & Corey Smith
(VE9AA,  VE9AAA & Baby-VE9)
271 Smith Rd
Waterville, NB
E2V 3V6

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