[CQ-Contest] RFI Question

Nate Bargmann n0nb at n0nb.us
Tue Nov 6 07:20:46 EST 2012

* On 2012 06 Nov 05:03 -0600, Carol Richards wrote:
> In the recent SS-CW, I noticed that I was getting RF into my PTT line
> that I use for keying. ( the rig locked up on some bands when I was
> QRO)  I suppose that I need to get the cable wrapped around some
> cores.What do I need and where can I get them?

A few years ago I ordered a number of the snap-over type ferrites from
Mouser.  The ones I bought will snap over an RG-58 sized cable and are
"mix 31" which is good for HF as I understand it.

Mouser # 623-0431164281
Fair-Rite # 0431164281

They are available in several package sizes and the above numbers should
get you to the correct page at Mouser's site so you can find what you're
looking for.

DX Engineering also carries them, but I found Mouser had a better price
in quantity.

73, de Nate >>


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