[TowerTalk] Another Bigboy rotor question

[Pat Thurman]

Frank Ayers wrote:

> Here's my question. I note the directions on the web site say a 10 conductor
> cable is needed. I look in the rotor and see 6 connections which look like
> motor common, left, right, and three pot leads. Why do I need 10 conductor
> cable? If that's what I need I can get some quickly enough, but I'd like to
> know what the wires are for.

The manual recommends that each of the three motor connections have two #18
conductors in parallel, then a #18 for each pot lead and one #18 for the ground.

Total of 10 conductors.

However, there's also a table in the same section which says it's ok for runs up
to 150' to use (3) #18 and (4) #22 on the PST-61
If you have the PST-71 then for runs up to 150' it's ok to use  (3) #16 and (4)
#22

For longer runs, the table shows (3) #14 and (4) #22 for the -71.

My guess is that the 10 conductor solution is a sort of one size fits all...
The 10 conductor cable is a relatively small cost compared to the rotator, so I
just went with the paralleled #18's and 10 conductor cable...
--
73,  Pat  K7KR



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