[50mhz] Tower Question

[jeremy-ca]

25G is more than sufficient. For legal reasons tower specs are extremely 
conservative, on the order of 3X.

I have been using 25G since the 60's here in NH and MA from 70 to 140' with 
big HF stacks as well as VHF/UHF with never a problem. The secret to 
longevity on a heavily loaded tower is to use a pivot pin base and let the 
guy wires do the work.

On a very lghtly loaded 70' one, a regular concrete base and 2 sets of guys 
is fine.

I put up a temporary 70' tower here when I moved in 89 with the base plate 
sitting on the ground and 2 sets of guys. It has a 3 el 20M on 21' boom, 8el 
6M on 36' boom, and 28 el 432. Its all still there! Along with 3 other 
properly "engineered" towers which includes 180' of 45G.

Carl
KM1H
160M thru microwave



----- Original Message ----- 
From: <W0DXZ at aol.com>
To: <50mhz at mailman.qth.net>
Sent: Sunday, March 04, 2007 8:55 AM
Subject: [50mhz] Tower Question


>I know that this is a 50 mhz group, but I have a tower question... we all
> have towers. I recently lost one in an ice storm... too big of an antenna 
> on a
> poorly guyed  lightweight tower. I want to put up ONE more tower in my 
> life, and
> not worry about it.
>
> I would like to put on that tower, a rotor, a 5 el M2 6M beam, a 13 el 2M
> beam, and a 19 el 432 beam.
>
> I am thinking of Rohn 45,,, 70 feet. I had previously used mainly Rohn 25,
> with good results.   (The one that fell over was not a Rohn 25, my Rohn 25
> stayed up)I can guy this new tower in three places, top middle, lower.
> Why would a person go to Rohn 45 over Rohn 25? Is it worth the expense 
> with
> the relatively small arrays I am putting up?  Sure would be easier to 
> climb.
> Suggestions?
> Bob in Iowa
> W0DXZ
>
>
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> everyone.  Find out more about what's free from AOL at http://www.aol.com.
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----- Original Message ----- 
From: <W0DXZ at aol.com>
To: <50mhz at mailman.qth.net>
Sent: Sunday, March 04, 2007 8:55 AM
Subject: [50mhz] Tower Question


>I know that this is a 50 mhz group, but I have a tower question... we all
> have towers. I recently lost one in an ice storm... too big of an antenna 
> on a
> poorly guyed  lightweight tower. I want to put up ONE more tower in my 
> life, and
> not worry about it.
>
> I would like to put on that tower, a rotor, a 5 el M2 6M beam, a 13 el 2M
> beam, and a 19 el 432 beam.
>
> I am thinking of Rohn 45,,, 70 feet. I had previously used mainly Rohn 25,
> with good results.   (The one that fell over was not a Rohn 25, my Rohn 25
> stayed up)I can guy this new tower in three places, top middle, lower.
> Why would a person go to Rohn 45 over Rohn 25? Is it worth the expense 
> with
> the relatively small arrays I am putting up?  Sure would be easier to 
> climb.
> Suggestions?
> Bob in Iowa
> W0DXZ
>
>
> **************************************
> AOL now offers free email to
> everyone.  Find out more about what's free from AOL at http://www.aol.com.
> Moderator: Ray Brown, KB0STN
> _______________________________________________
> 50mhz mailing list
> Home: http://mailman.qth.net/mailman/listinfo/50mhz
> Help: http://mailman.qth.net/faq.htm
> Post: mailto:50mhz at mailman.qth.net
>