I would think the opposite would be true, you could use fairly thin gauge
wire if it were and AC Motor.
Mike
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Peter Voelpel
Sent: Sunday, May 10, 2009 4:10 PM
To: 'Tower Talk List'
Subject: Re: [TowerTalk] Rotor for Long Cable Run
Hi Jim,
You could probably use any rotator with DC motor.
I use a Prosistel PST2051 with a 600 ft. cable run.
The connection to the transformer in the control box just needs to get
rerouted to a higher voltage tab.
73
Peter
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Jim Brown
Sent: Sonntag, 10. Mai 2009 22:03
To: Tower Talk List
Subject: [TowerTalk] Rotor for Long Cable Run
I'm planning the install for a 3-el SteppIR (w/6M element) that requires a
cable run of about 400 ft. (no 30M/40M elements -- I've already got dipoles
at 100 ft).
I'll be doing a lot of contesting, so I don't want it to be TOO slow.
Considering the cost of copper, I can spend a few more bucks on the rotor if
it's more tolerant of copper loss. I would prefer not to go to the trouble
of remote relays if I can avoid it.
Other considerations: This is going to be on a tall tower and I'm well past
my climbing days, so paying more for reliability is a no- brainer. The tower
and the antenna will be sheltered from the wind in a dense grove of
redwoods, and top winds outside the grove are about
85 mph. Computer control is not important for me.
The cost of copper is going to be quite significant. The questions are,
1) how much (that is, how big) copper do I really heed, and
2) Which rotor should I use?
Thoughts?
73,
Jim K9YC
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