[TowerTalk] 40 meter repair/tramming
Thu, 14 Sep 2000 10:10:41 EDT
In a message dated 9/13/00 6:32:44 PM Pacific Daylight Time, email@example.com
> I have used 1/2 inch nylon rope, secured to the masts with
> clove hitches, as my trolley rope for the past 25 years, installing
> or removing several dozen antennas up to 100 lbs.
Maybe we're not talking about the same thing. A tramline (typically steel
cable) is a line where the load is under the line and suspended by a pulley
whereas the antenna sits on top of a trolley line and the antenna is slid up
the line (typically ropes). The tram system is MUCH easier to rig and use
than a trolley set-up.
> Yes, it takes some time to do the rigging, but I assume it also
> takes some time to rig the slings for maneuvering the antenna
> on the tower.
Sure, that's a wash but on the tower you don't have to rig the haul line,
tramline, comealong, etc.
> It is MUCH easier, and faster, to replace element tips on the ground than
on the tower.
Well, THAT'S true.
> At worst, I would wager that bringing the 2L40 to the ground for
> repair would take no longer than repairing it on the tower and
> at best, would be less time intensive, assuming a 3 man team.
Repairing it on the tower will take one guy about 30-60 minutes. Rigging
up the tramline, repairing the antenna on the ground and re-installing it
will take your 3-man crew and 60-90 minutes. Splitting hairs (hares?) but I
prefer to do things the quickest and easiest way I can.
Cheers, Steve K7LXC
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