On 4/3/21 5:51 AM, Richard Thorne wrote:
This is my next step.
I'm using the Green Heron Everywhere wireless system for my antenna
switching and rotor controls (RT-21's).
The RT-21's are off my operating desk and sitting on a shelf at the
antenna entrance wall.
The next step is to move them out to the tower base in a water proof
enclosure.
The other option is a 4O3A Rotor Genius. Either run an either net
cable to the tower or setup a wireless bridge.
Both of the above options require power at the base of the tower.
Rich - N5ZC
For any long run for networking, fiber is the way to go. The end points
are about $50 each, and premade duplex cables are about about $5 +
$0.10/ft for reasonable lengths.
If you don't need a lot of power, you don't need to run a full 15A
branch circuit with 12AWG. You can run much smaller wire, with
transformer isolation, and use the right taps on a transformer to
overcome the voltage drop. You'd have to look at the code to see how to
make it legal, but, in general, once you've got that isolation barrier,
you're not running a "branch circuit" any more, but rather "remote
control and power". I think it would be Class 2 or Class 3.
Since there's galvanic isolation, there's also no requirement to run a
bonding/grounding wire in parallel. You'd establish a ground at the
antenna end, and that would be your ground reference.
Right now, I'm working on a system that uses a battery at the far end
and a current limited DC link as charging power.
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