[TowerTalk] My First Tower part 2

[wa4dou@juno.com]

Hello Jason,
  I would much prefer a tower at 40 ft., as opposed to 30 ft., for 20 ,15
and 10 meters. It is 33% higher, slightly over 1/2 wavelength high for 20
m., slightly under 1 wavelength for 15 m., and slightly over 1
wavelength. for 10 m. Get an antenna manual out and look at the charts
for radiation angles versus the angles that are most likely to be
favorable to working dx from your region of the country. While you will
work dx on 20 meters, the performance will not be impressive, unless
you're use to very poor antennas. The most impressive performance will be
on 15 and 10 meters. The C3SS is about 1/2 db down from the C-3/C-3E
antennas on 20 meters. 1/2 db is meaningless in HF communications.
Imagine the antenna in place. Think of both. One has a maximum  element
length of about 35 or 36 ft. The other has about 25 ft. The boom length
of the C-3/C-3E is 18 ft. The boom length of the C3SS is 12 ft. Below
some height, HF yagis tend to look disproportionately large for that
height and a bit ridiculous. G/L es 73 de Roy WA4DOU
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On Sat, 15 Jul 2000 20:47:04 -0400 "Jason Hissong"
<jhisson1@columbus.rr.com> writes:
> 
> Thanks for the tremendous responses I have been getting.  I 
> appreciate your
> advice.  I have one remaining question:
> 
> Will there be much of a difference between a 30' tower and a 40' 
> one?  If
> not, I would rather save the worries and money for something else :)
> 
> I have subscribed to the F12 list so I appreciate you pointing me in 
> that
> direction.  I will forward my F12 specific question to them about 
> the
> elements not being at DC ground potential.
> 
> Looking forward to joining the rest of you in the pileups!
> 
> 73 de KC8HYI
> 
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> 
> 
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