I use my Ridgid drill charger as a demonstration device when giving RFI talks
to clubs. It plays an almost musical sound on all HF bands, something the
audience always enjoys. Then I coil up a half dozen turns of the cord and
dramatically apply the largest snap-on type 31 ferrite. Noise in the receiver
nearly disappears, and I usually can get a round of applause.
Gary Johnson NA6O
gwj@wb9jps.com
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|