Not much of a wind load to tell you the truth...
I have a 5L 20M mono on 44 foot boom and a 2L 30/2L 40 above
that 12 feet on a CM mast...NO worries I assure you even
with 19 SQ feet of antenna up there at 90 feet! 2 Hurricanes
later...Still perfect.
Jose - N4BAA
Soon moving to MASS!
Roger (K8RI) wrote:
> It basically depends on what you want to do, how much room you have and how
> good a shape you are in.
>
>
>> I recently retired and am planning to re-locate to Tucson, AZ (from
>> Lexington, MA). I am in the enviable position of rebuilding the shack
>> and putting up a new antenna system.
>> At present, I have narrowed the choice of towers to either 80' of
>> Rohn 45 or an 80' Universal Aluminum Free-Standing tower.
>> On top I am looking at a Tennadyne 8 or 10 el HF Log with a 6 Meter
>> antenna above that (10' separation).
>
> That's quite a wind load.
>
>> The Rohn is the "classic" approach but the Universal is very inviting.
>> First, no guys are required but it takes a lot more concrete in the base.
>> Also, not sure how easy it would be for two guys to climb it to install
>> the antennas.
>
> The 45 G is very solid and roomy enough for two to easily work at the same
> elevation.
> OTOH I did all of the tower work solo (in my mid 60s), with one or two
> helpers on the ground to pull on the rope to the gin pole and move *stuff*
> around.
>
> For me it'd be more comfortable climbing the ROHN. I don't like going above
> the last set of guys.
>
>> The Rohn, while adequate, has it's drawbacks. Namely three sets of Guys
>> and three more concrete piers.
>
> That's what make it strong.
> The self supporting is more "elegant" and less obtrusive. OTOH I'd not be
> comfortable putting what I have up on a self supporting tower.
> http://www.rogerhalstead.com/ham_files/Tower29.htm
> Were I to do it again I'd probably go with a pair of crank up, self
> supporting towers.
>
> Unfortunately a medical problem is currently keeping me from finishing up
> the work I had going, but I *hope* to be back at it in the not too distant
> future.
>
>
>> I would appreciate comments on my "predicament" and suggestions are
>> welcome.
>
> 73
>
> Roger (K8RI)
>
>
>> Thanks,
>>
>> 73, Dick, W1KSZ
>
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>
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>
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