[TowerTalk] Need to identify the tower

[Roger (K8RI) on TT]

I go with those who say, American.

I had one on a dirt base for many year. "Usually" I had a tribander on 
it, although I had a 3L Cushcraft tribander @ 90 feet, TV ant at roughly 
100' and a big , heavy repeater ant above that.  Wayyy too much for that 
tower!

It was a royal PITA to climb which I did many times. As has already been 
mentioned, the spacing between the horizontal cross braces was too wide 
for comfortable climbing.  90 feet is too high to be safe with that 
tower even with a big TV antenna.  40-50 feet is fine for a 3 or 4L 
tribander. 1/4" wire rope let alone EHS is too heavy.  1/8th in steel 
guys are about maximum for safety. I've taken down quite a few and none 
were straight.  40-50 footer were quite popular in the 60s as tribanders 
of that era were generally light weight and used ones were plentiful as 
this area only had about 3 TV stations available.  IIRC in the early 
days only channel 6 out of Lansing was available with a snowy B&W 
picture However going to 80 or 90 feet with 25G added quite a few.  
There were a few taller towers with single channel (monobanders made 
from real Al tubing) for Detroit and Grand Rapids.  Many decades (about 
5) later when TV went Digital, with two long UHF antennas ( at 90 and 95 
ft) I could pull in 22.

I believe the ROHN 20 which was stronger, was listed as a tower for TV 
antennas.
There are still a few American towers in this area, generally free for 
taking them down.

73

Roger (K8RI)

On 10/13/2016 Thursday 8:57 AM, Alex Malyava wrote:
> Hi all,
> A friend of mine got 4 sections of this tower -
> https://goo.gl/photos/YjvjBy5idJV93ByQA - and he has no idea what exactly
> it is.
> It is on concrete foundation and will be bracketed to the house @ 28' level.
>
> I am just wondering: what this tower is good for? Is it like for a
> tribander only and nothing else or he can put 40m Moxon or some shortened
> 2-3 element 40m beam on it?
> I am afraid that 40m beam will twist the tower and rip it off the wall.
>
> That's, by the way, separate story - how bad will be 2-3 element 40m beam
> mounted @ 42' height?
> Is it still better than vertical?
>
> Thanks,
> Alex K2BB

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