Mounting 24 db Parabolic on roof

I've been having difficulty finding instructions for mounting an
antenna on the roof. I have the long J mount, with 10 holes in the
base that could be used for screws/bolts/whatever.

What length (and size) screws are required?
Do I need to find a 'stud' or will anywhere on the roof suffice?
Where can I validate this information?

Ok, I found more documentation, and realized the mounts I thought was
for roof mounting, was install for wall mounting.

Where can I find roof mounts for a 24 dbi parabolic dish suitable for a
pitched roof?

(E-Mail Removed) hath wroth:

>Ok, I found more documentation, and realized the mounts I thought was
>for roof mounting, was install for wall mounting.
>
>Where can I find roof mounts for a 24 dbi parabolic dish suitable for a
>pitched roof?

Any particular reason you don't seem able to disclose the maker and
model of your dish? Not all dish antennas use the same mounting
configuration.

This should work for your unspecified model dish:
http://www.pacwireless.com/products/UM.shtml
http://www.fab-corp.com/home.php?cat=277
http://www.hyperlinktech.com/web/mou...nna_mounts.php
Watch the pipe O.D. size. Some dish clamps will handle 1.50" O.D.
Others will only go to 1.25" O.D.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

The fab-corp Long mount was what I purchases, thinking it could be used
on the roof. However, once it arrived, the documentation stated it was
to be mounted on a wall. Hence my posting here asking where to find
a roof mount.

(E-Mail Removed) wrote:
> The fab-corp Long mount was what I purchases, thinking it could be used
> on the roof. However, once it arrived, the documentation stated it was
> to be mounted on a wall. Hence my posting here asking where to find
> a roof mount.

Any particular reason why you can't swivel it around and use it as a
roof mount? Gotta keep in mind weather-proofing of course. Or there's a
bunch of resources for roof mounts:
http://www.google.com/search?hl=en&q...=Google+Search

There are some "non-piercing" roof mounts out there. Good for those that
don't want to go cutting up roof shingles.

On 14 Apr 2006 03:15:42 -0700, (E-Mail Removed) wrote:

>The fab-corp Long mount was what I purchases, thinking it could be used
>on the roof. However, once it arrived, the documentation stated it was
>to be mounted on a wall. Hence my posting here asking where to find
>a roof mount.

I believe I asked for the antenna brand and model, not the mount that
you are about to exchange for the correct model. See:
http://www.fab-corp.com/home.php?cat=277
Pick one that will work. Call or write Fab-Corp for an exchange.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 (E-Mail Removed)
# http://802.11junk.com (E-Mail Removed)
# http://www.LearnByDestroying.com AE6KS

No, model 277 from fab-corp is for wall use. The directions that came
with it specifically states that it's for wall use.

I've done that google search myself before posting, but there were no
obvious answers of what was required, back to my original questions

What length (and size) screws are required?
Do I need to find a 'stud' or will anywhere on the roof suffice?
Where can I validate this information?

On 14 Apr 2006 17:47:50 -0700, (E-Mail Removed) wrote:

>No, model 277 from fab-corp is for wall use. The directions that came
>with it specifically states that it's for wall use.

I don't see a model 277 on the Fab-Corp web pages. However, I don't
care about the wall mount that you have. It won't work, so it's going
back for an exchange. There are 4 mounts starting at the top of the
page labelled "universal mounts" that will work if the diameter of the
pipe is correct. These are 39 and 26 inches long
http://www.fab-corp.com/product.php?...cat=277&page=1
http://www.fab-corp.com/product.php?...cat=277&page=1
which may be required to clear whatever you're using for a 24dBi dish.
Note that these mounts can be used on a flat roof, pitched roof,
vertical wall, chimney (with straps), DIN rails, unistrut, and
vertical pipe in concrete (with clamps). That's why they're called
"universal" mounts. The only real trick is that the base has to be
solidly mounted to the roof and the pipe be long enough to prevent the
antenna from sitting on the roof. If you have cedar shingles or shake
roof, forget this mount and use a pipe.

>What length (and size) screws are required?
>Do I need to find a 'stud' or will anywhere on the roof suffice?
>Where can I validate this information?

How on earth am I suppose to devine this information if you repeatedly
refuse to supply the maker and model of the antenna? As for the roof,
all I know is that it's a "pitched" roof.

This looks kinda cool:
http://www.hometech.com/video/satmou...l#RS-RETRODECK
I haven't tried it.

General instructions for installing a DBS dish on the roof:
http://www.dbsinstall.com/Whatis/Whatisgood-3.htm
Yes, you need to hit the rafters with lag bolts or thru bolts with big
washers.

Please call Fab-Corp support at:
http://www.fab-corp.com/help.php?sec...us&mode=update
and beg them for assistance.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 (E-Mail Removed)
# http://802.11junk.com (E-Mail Removed)
# http://www.LearnByDestroying.com AE6KS

The 'WhatIsgood-3.htm' link was exactly what I needed. Thanks.

My link is up and running (at least while I'm sitting on the roof).
I'll be installing the weatherproof boxes over the next week. I'll be
ordering extra cable to install the next installation during the week.

According to http://www.fab-corp.com/pages.php?pageid=1, I'm working
within the legal limts for Point to Point installations.

(E-Mail Removed) hath wroth:

>The 'WhatIsgood-3.htm' link was exactly what I needed. Thanks.

Well, sorta. If you're running thick coax cable (i.e. LMR-400), it
will be difficult to snake through the pipe as shown. Other than
that, the DBS dish mount instructions should work. Use LOTS of
roofing tar.

>My link is up and running (at least while I'm sitting on the roof).
>I'll be installing the weatherproof boxes over the next week. I'll be
>ordering extra cable to install the next installation during the week.

Post photos. I'm always interested in creative installs.

>According to http://www.fab-corp.com/pages.php?pageid=1, I'm working
>within the legal limts for Point to Point installations.

24dBi for point to point should be 24dBm tx output maximum. The jury
is still out as to whether that is measured at the antenna (which
includes the coax cable losses), or at the transmitter (which does not
include the coax cable losses).

One of the things you should do while waiting is to drag a laptop up
to the antenna installation and fire up Kismet to determine what you
can hear. The danger is that there is another wireless network in
line with your dish or in line beyond the dish. Get the signal
strengths and avoid those channel numbers. When you get the other
dish up, do it again in the opposite direction. I recently did one
installation that had a hotel network directly in line, but almost 3
miles further than my target. I had to reposition the link so that
another building blocked this source of interference.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558