Kevin
If you have the space lift the big antenna with the mast , the most important
here if you have the LAND to
have the crane, tower and antenna moving around to make the installation.
DO NOT DRILL THE MAST, Buy the Steps or make your own steps with muffler
clamps or the DXE type
are just a piece of thick aluminum angle , channel or Steel angle, double
clamp per step are needed
An adjustable lanyard 3 ft and /or complemented short lanyar for rebar
with a gorilla hook to keep you in place like this
http://www.westernsafety.com/ultrasafe2011/ultrasafepg23-96701.jpg works for
me
But if you hire a professional antenna installer he will solve all those
problems for you, most recommended
J.Hector Garcia XE2K / AD6D
Mexicali B.C DM22fp / El Centro
P.O.Box 73
El Centro CA 92244-0073
http://xe2k.net
Tweeter @XE2K
________________________________
From: Kevin Shea <fourstar4sale@yahoo.ie>
To: "TowerTalk@contesting.com" <TowerTalk@contesting.com>
Sent: Sunday, September 8, 2013 10:54 AM
Subject: [TowerTalk] Best way to mount two LPDA on single mast
Hi,
I am putting up an 80' self supporting tower (AN Wireless HDD-80). I will be
using 2" chrome moly mast with ~ 10 ft of mast above the top of the tower. To
this mast I am planning on mounting a 7-30Mhz, 14 element LPDA and above it
approx. at the top (8' separation) a 50-1300 MHz LPDA both from Tennadyne.
While I have many questions the ones here I am seeking answers for are:
Should I lift the antennas already mounted on the mast and lower the entire
assembly into the tower and rotator, or should I have the mast already attached
to the rotator and lift (by crane) the antennas and mount them to the mast?
If the second option is the chosen method how do I attach the upper antenna (I
am tall but not ten feet tall)? Do I need to drill into the mast and place
steps into it?
Finally, are there any other approaches I should be considering?
Thanks!
Kevin N9JKP
Madison, WI
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