[TowerTalk] Drive-in Rohn Base for 25G

[David Robbins]

On the tower side I would say, no problem.  However on the house side you
may want to consider a change.  Assuming you live somewhere that the ground
freezes you may want to consider a base under the tower down below the frost
line.  without that frost could lift the tower while the house doesn't move,
possibly damaging the house or brackets.


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of D. Scott MacKenzie
> Sent: Thursday, September 22, 2005 03:09
> To: NØATH; towertalk at contesting.com
> Subject: Re: [TowerTalk] Drive-in Rohn Base for 25G
> 
> Thanks Dave:
> 
> I was looking at attacing it FIRMLY to the framing.  I was also going to
> re-enforce the header boards where I was going to attach the house
> brackets.
> Then I need to find a decent rotor...
> 
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com]On Behalf Of NØATH
> Sent: Wednesday, September 21, 2005 10:55 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Drive-in Rohn Base for 25G
> 
> 
>  Scott - You will probably get several replies on this one - In my opinion
> you shouldn't have any
> problem doing this if your mounting bolts are into some real wood framing
> and not just into a thin
> facer board - I had a similar setup years ago except I was higher above
> the
> brackets than you are
> contemplating and I had considerable more weight ( 151 pounds ) sitting on
> the mast pipe.
> The only problem I had was broken rotors and elongation in the bolt holes
> in
> the tower legs.
> ( Above the brackets) The tower was as solid as an anvil in cement.
> 
> Dave / NØATH
> 
> 
> ----- Original Message -----
> From: "D. Scott MacKenzie" <kb0fhp at comcast.net>
> To: <towertalk at contesting.com>
> Sent: Wednesday, September 21, 2005 9:29 PM
> Subject: [TowerTalk] Drive-in Rohn Base for 25G
> 
> 
> I plan to put up a small and meager 25G tower, and bracket it the second
> floor and to the first floor.  Total tower height will not exceed 35 feet
> (10' above second floor bracket).  Antennas will be Hy-Gain TH3Mk4,
> possibly
> a CC 5el 6M beam, and a 2M M2 2M9SSB....but I a being optimistic...
> 
> My question - Can I use the Rohn drive-in base plate for the tower?  If
> so,
> to what antennas am I limited - if just VHF, that would be OK....
> 
> Thanks in Advance
> 
> Scott, aka KBØFHP
> 
> _______________________________________________
> 
> 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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