Re: Rf problem

David Cutter

If this is to be done inside an enclosure, eg a mains distribution panel or a switch box, etc, then the outer sheath of the cable can be removed and just thread the inner wires through the core.  That might help if you have a particularly fat cable.

David G3UNA


From: [] On Behalf Of Chris Moulding
Sent: 10 May 2019 18:01
Subject: Re: [CrossCountryWireless] Rf problem


It depends on the diameter of the mains cable that you are threading them on. The diameter of the inner hole in the ferrite core is 12.5 mm or 1/2".

If you can get two or three turns of cable through then you only need one, if you can only get one turn i.e. cable straight through the hole then you will need three of them.

One supplier in the UK is RS Components:




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