These specs are for 70mph basic wind speed (no ice).

What do you need it to be rated for?

-Richard M.

If I am reading the spec sheet correctly, for an 80' Rohn 45G tower, your guy anchors will be out 64' and your guy points on the tower will be at 35' high (73' guy wire) and 65' high (91' guy wire). I don't know if moving the guy points (both on the tower and at your guy anchors) will reduce your wind loading capability. Maybe someone else with more tower exp. can help out here.

All of the towers that we have installed have been with a flat base plate. Then again all of our towers (that we have built) have been 25G, except for one that was installed before I got here. And I think they used a crane.

Are you going to put a top section? If you do put a top section, keep in mind that if you need/want to go taller in the future, you have to take gear down if it is at the top. We learned that the hard way. :-(

Don't forget your wire nuts.

-Richard M.

----- Original Message ----- From: "Matt Larsen - Lists" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "WISPA General List" <wireless@wispa.org>
Sent: Thursday, November 10, 2005 12:18 PM
Subject: [WISPA] New Tower Installation - Need some help/recommendations


Hello all,

I'm getting ready to put up my first tower (finally found a place where there weren't any existing towers available) and would like to get some comments from others about whether I am doing the right things.

My goal is to mount a 2' PacWireless 5Ghz dish, a 3' PacWireless 5Ghz dish and 13db PacWireless H-pol Omni antenna at the 80 foot level.

The tower site used to have a very large radio tower on it, so the base and guy points are all still in place. The base has a single pin in the center, and the guy anchors are 90' out at 120 degree intervals.

My intention is to put up a Rohn 45 equivalent tower - 8 sections and a 5' base section for a total of 85' of tower; two sets of guy points - one at 40' and another at 80'. The antennas will mount right above the guy wires.

Here are some of the questions that I have:

1) Should I use a flat base or an angled base (single pin) There is already a pin in place from the old tower, but I don't know whether it makes sense to use it or just put a flat base with new anchors in.

2) Does it make sense to put a hinged base at the bottom, assemble the tower and raise it with a winch -- or should I use a gin pole to put it together?

3) I have not ordered my tower pieces yet. New costs look to be about $3200 for 8 10' sections, base, 2 guy brackets, 1000' of guy wire, guy wire ground kit and 6 turnbuckles. Am I missing anything on this list? Does anyone have this sort of thing laying around that they would like to sell? I'm just looking for some recommendations as to whether this is the right price range.

Thanks for your assistance guys!

Matt Larsen
[EMAIL PROTECTED]
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