Topband: a box of ferrites

[Rob Atkinson]

>It was that article that made me a choke everything
>convert.


If you don't mind wasting money on costly ferrite snap on cores at
around $3 each you can mindlessly put them on everything, but at that
cost they are a last resort for me.


I try before that point:

1.  inexpensive audio isolation transformers
2.  small .01 ceramic bypass caps
3.  1:1 power isolation transformers
4.  ungrounding cabinets, or grounding cable shields at only one end.
5.  using balanced shielded audio cables

You can try some of all of these depending on the specific station
circumstances.
These tricks don't work for everything but can in the proper
application if the problem is keeping RF where you want it.  The power
isolation transformer is probably the most expensive fix but besides
isolating direct rectifying power supplies off of the AC service line,
they eliminate square wave line radiation, tunable hum, and station RF
getting into the appliance.

73
Rob
K5UJ