[TowerTalk] Yagis

[jeremy-ca]

One thing that I would consider with a 34' boom is interaction; it is 
possibly too close to resonant to be healthy IMO. Take a look at the 4 el 
Cushcraft on the same 34', its not a stellar performer.
Besides all around performance the PV series was designed to have a non 
resonant boom. Most high performance computer designed antennas since then 
fall into that category.

Carl
KM1H

Run YO on that HyGain and see what you can get out of it for FR  with 4 and 
5 elements. I prefer FR over FB when spec'ing a yagi

>> I've decided to make my 5 element HyGains into 4 element
>> antennas. This will just be a search and pounce system for
>
> The funny thing about HyGain and most other manufacturers is
> that 20 meter beams are relatively close spaced and 10 meter
> beams are wide spaced.  Thus a 10 meter 4 element beam could
> easily have a boom as long or longer (in terms of wavelengths)
> than a 5 element 20 meter beam from the same manufacturer.  For example,
> the M2 4 element 10 meter beam is on a 24 foot boom.  This would
> be 48 feet on 20 meters.  Yet the M2 5 element 20 meter beam
> is on a 44 foot boom.  And the Hygain 5 element 20 is on a 34 foot boom.
> Seems to me that you will not miss the 5th element at all.
> You do need 4 elements not 3, however, to get the most from
> a 34 foot boom.
>
> Rick N6RK
>
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