I would suggest you bypass all 8 wires with .01 uF 1 KV discs to a good earth
ground at the control box.
That should take care of the problem.
73,
Tim K3LR
EUGENE SMAR wrote:
> TT:
>
> Here's a new one. As I was swinging the D40 dipole around tonight,
> trying to zero in on a UA6 in the lower end of 40, his CW note got slightly
> raspy when I depressed the brake switch on the Tailtwister control box. Not
> enough to distort the signal into obliteration, but enough that I could hear
> it as maybe a T-7 note. I tried a few other S4-S7 stations and they all
> sounded the same with the brake depressed - a slight amount of raspiness.
> Likewise, the raspiness was also superimposed on SSB signals higher in the
> band.
>
> FYI: The rotator is about 20 feet below the dipole on the mast and I
> use RG-213 coax to fee the antenna. Rotator control cable is ordinary
> 8-conductor stuff, but I did wind a four-turn solenoid in the control cable
> pigtail lead just underneath the rotator (as I had planned to do to put some
> inductance between a lightning strike and the innards of the rotator.) Xcvr
> is a TS-570D, and I haven't tried listening on my R-4C yet.
>
> Is this symptomatic of an incipient failure anywhere in the rotator
> system? Or is this something harmless I'll have to live with?
>
> Thanks in advance.
>
> 73 de
> Gene Smar AD3F
>
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