Its always a trade between buying copper for a heavy gauge run or putting the
power supply remote and spending less on the copper. But at the hassle of
running 120v circuits. Or just letting the losses at low voltage be and
bumping the supply voltage ( the latter is why constant current type drives are
nice)
Sent via BlackBerry by AT&T
-----Original Message-----
From: <john@kk9a.com>
Sender: towertalk-bounces@contesting.com
Date: Mon, 25 Oct 2010 17:31:10
To: <TOWERTALK@contesting.com>
Subject: Re: [TowerTalk] 5 x conductor rotor cable ?
I have a 450 foot cable run to my medium prop pitch and it works fine with
the transformer in the shack. For the motor I used three runs of 6 gauge
house wire and for the sensor I used a cable that has two #18 conductors.
For your shorter run I'm sure that you can find 3 conductor Romax and then
use another cable for the sensor.
John KK9A
To: jim.thom@telus.net, towertalk@contesting.com
Subject: Re: [TowerTalk] 5 x conductor rotor cable ?
From: TexasRF@aol.com
Date: Mon, 25 Oct 2010 11:30:05 EDT
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
8A while running; how many amps to start?
I had to locate the 24vdc power supply at the prop pitch for a 250ft and a
700ft long run at one time. The message here is to test with the cable
before installing.
73,
Gerald K5GW
In a message dated 10/25/2010 9:16:49 A.M. Central Daylight Time,
jim.thom@telus.net writes:
Who makes 5 x conductor rotor cable ? I need 175' for the small PP.
3 x BIG wires and 2 x small ones.
These small PP's have a com/CW/CCW for the dc motor which sucks 7-8 A .
And 2 x small wires for the
magnetic pulses for the digital readout. Something like 3 x 12 ga's +
2 x 20 ga's would be ideal. It has
to be flexible enough for a crank up. Does it even exist ?
Tnx... Jim VE7RF
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