[TowerTalk] Omni Directional Antenna on Tower

[Don Havlicek]

HHAT should be HAAT .. duh
Don
N8DE

Don Havlicek wrote:
> I'd go for #2, with a small coax loop at the top of the tower, much as 
> you have for the yagis.
> Rotating the colinear isn't bad, as you will gain HHAT over 
> side-mounting it [with no 'tower-shadow' loss].
> As for lightning .. use the same method that you now do for the yagis.
> Good luck!
> 73
> Don
> N8DE
> 
> 
> K5XS at aol.com wrote:
> 
>> I am putting up a small (50') dedicated VHF/UHF tower to "declutter" 
>> my main (HF) tower.
>>
>> I operate a UHF repeater from my QTH, and am considering putting an 
>> omnidirectional (colinear) antenna on the tower for the repeater to 
>> take advantage of the added height over the present antenna location.
>>
>> Two configurations occur to me:
>>
>> 1)  Putting the repeater's omni antenna on the side of the tower with 
>> a cross-arm.  I would need to install a cross-arm and would have a 
>> little shadowing from the tower.
>>
>> 2)  Putting the omni antenna on the very top of the mast.  Naturally, 
>> the antenna would rotate whenever I rotated the 6-meter and 2-meter 
>> horizontal yagis, and I am concerned about flex in the coax and N 
>> connector over time and about increased susceptibility to lightning 
>> (not a major risk here, but nonetheless...)
>>
>> Does anyon have any thoughts?  Option 2 is appealing, but it sure 
>> seems dumb to rotate an omnidirectional antenna...
>>
>> Thanks.
>>
>> Bernie K5XS
>> Arkansas
>> _______________________________________________
>>
>> See: http://www.mscomputer.com  for "Self Supporting Towers", 
>> "Wireless Weather Stations", and lot's more.  Call Toll Free, 
>> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>>
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> 
> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
> any questions and ask for Sherman, W2FLA.
> 
> _______________________________________________
> TowerTalk mailing list
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> http://lists.contesting.com/mailman/listinfo/towertalk
>