Yep, we do the radios at the bottom on these. Part of what prompted the
post is that the trees grew this spring and we need to the the antenna
higher. And then we have those few that we need to get 360* coverage
from, so we need to get above the dome.
Marlon K. Schafer wrote:
One way to handle that (I often do this because I'm very afraid of
heights) is to mount the antennas at the top then run good cable down
to a nice play for the radios.
LMR 600 only looses 3 or 4 dB per hundred feet. For runs of less than
50ish feet I'll usually just use LMR 400. If 3 dB of cable loss kills
your system you'll be fighting it every time something changes (heavy
rain, fog etc.) anyway. Yeah I know weather isn't supposed to affect
these bands but someone forgot to tell the radios that :-).
marlon
----- Original Message -----
*From:* Justin Wilson <mailto:[email protected]>
*To:* WISPA General List <mailto:[email protected]>
*Sent:* Friday, July 16, 2010 7:31 AM
*Subject:* Re: [WISPA] Mounting on silos
Most silos like scott is dealing with have no ladder going to
the very top. Imagine a domed water tower with no ladder to the
top of the dome. They never were designed to have to climb to the
top. No reason to. So what you are left with is a ladder that
goes to where the dome starts. You then have another 10 feet or
more to be able to get over the top of the dome. In otherwords,
you can't mount at the top of the dome. You have to come up with
a solution to get you over the dome.
Sure, you could bring in a lift or crane and mount stuff.
However, maintenance and repair become the issue. You have to
bring that lift in each time because you can't climb to the top of
the dome.
Justin
--
Justin Wilson <[email protected]>
http://www.mtin.net/blog
Wisp Consulting -- Tower Climbing -- Network Support
------------------------------------------------------------------------
*From: *Josh Luthman <[email protected]>
*Reply-To: *WISPA General List <[email protected]>
*Date: *Fri, 16 Jul 2010 10:15:17 -0400
*To: *WISPA General List <[email protected]>
*Subject: *Re: [WISPA] Mounting on silos
How is that any different then any other tower? Especially a
water tower.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Fri, Jul 16, 2010 at 10:13 AM, Scott Reed
<[email protected]> wrote:
Especially the one with an open ladder, no cage.
Kurt Fankhauser wrote:
> Some of them old silo's like you are describing are pretty
scary. I've been
> on them too and seen a lot of safety issues from the fall
protection cage
> being rusted through and falling, to the top cap trying to
fall off. Just be
> careful climbing those things!
>
> Kurt Fankhauser
> WAVELINC
> P.O. Box 126
> Bucyrus, OH 44820
> 419-562-6405
> www.wavelinc.com <http://www.wavelinc.com>
>
>
> -----Original Message-----
> From: [email protected]
[mailto:[email protected]] On
> Behalf Of Scott Reed
> Sent: Friday, July 16, 2010 7:56 AM
> To: WISPA General List
> Subject: [WISPA] Mounting on silos
>
> I have a couple of POPs that are silos. Several of them are old
> concrete silos with metal domes. The top of the dome is more
than 10'
> above the top of the concrete. I have been mounting with 10'
pipe on
> the ladder side and not servicing customers on the "back"
side. It has
> also worked out that the backhauls are on the ladder side as
well.
> This year the trees seem to be growing a lot more leaves than
in the
> past. I have a couple of silos that I need to get the
backhaul higher
> than the 10' mast will allow. If I can get above the dome, I
could
> also increase the covereage area.
> So, the question is, for those of you using silos, how to you
get above
> the dome?
>
>
--
Scott Reed
Sr. Systems Engineer
GAB Midwest
1-800-363-1544 x2241
1-260-827-2241
Cell: 260-273-7239
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--
Scott Reed
Sr. Systems Engineer
GAB Midwest
1-800-363-1544 x2241
1-260-827-2241
Cell: 260-273-7239
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