[RFI] RFI into 6-pack

[Roger (K8RI)]

On 8/17/2010 10:57 AM, Jim Brown wrote:
> On Tue, 17 Aug 2010 03:55:07 -0400, Roger (K8RI) wrote:
>
>>   On 75 the control boxes for the 6-pack light up like a Christmas tree
> Does the control box DO anything wrong besides light up?
nah, it just sets there...

OTOH I've not had any problems with its working.  I just find it 
annoying with the lights coming on.
>> when the output passes 1KW and that's with 6 turns of control cable
>> through two 2.4" OD cores of #31 mix
> For 75M, more turns through those cores (or more cores) would likely move
> the resonance down a bit, and might help. Something like .001 discs, very
> short leads.
>
> I would also try RF bypass caps from those control lines to common in the
> box.
>
> Another question. What is the control cable? Twisted pairs? Parallel
> wires? Shield? If so, what kind of shield, exactly?
I'm just using a common rotator cable in this case, so it's unshielded, 
8 conductor..
I need to add a grounding lug for the box which is ungrounded.

73

Roger (K8RI)
> 73, Jim K9YC
>
>
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