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Old June 19th 07, 03:13 PM posted to rec.radio.amateur.antenna
Jeff Dieterle[_2_] Jeff Dieterle[_2_] is offline
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First recorded activity by RadioBanter: Jun 2007
Posts: 5
Default rotor cable voltage drop

Hi Nick,
Not sure where you going with the larger conduit and what type of losses.
From my limited knowledge, conduit fill is a function of the rated wire
ampacity and the resultant I-sqr'd-R loss if the wire is pushed to rated
ampacity, which shouldn't be an issue on the coax, and a later poster
replied with the correct rotor wire size. If you talking about signal loss
on RG6 over that distance I've had that cable laying on the ground to the
tower location for a couple of years and get a strong signal, physical
damage to the exposed wire is the problem. I assumed the coax shielding,
properly grounded would take care of problems running in the same conduit
with Sat. TV and Rotor wiring
Please reply if you have more insight on this.
Thanks Jeff


"Nick" wrote in message
...

"Jeff Dieterle" wrote in message
...
I'm installing a 60ft tower about 400ft from my house for uhf/vhf. I'm
planning to use a Channel Master rotor which I haven't purchased yet.
I've buried 1"pvc conduit to tower and planning the wire pull for the
antenna & satellite coax plus the rotor cable. From my research 3c/22ga.
wire will control all C M rotors. Since I don't know the power
requirements yet of the un-purchased rotor I can't calculate the voltage
drop on appx. 500ft of 22 ga wire to see if it will be sufficient. Can
somebody either reply with the typical C M rotor current/voltage/watts or
first hand knowledge of the correct wire gauge for a 500ft run. Thanks
Jeff


I wonder if a larger conduit would be desirable for a larger diameter
co-axes, else the losses might be
unacceptable and to fit all these cable in - is it OK to run these so
closely together over such a long distance ?

Nick