On 1/29/2015 10:23 AM, Carl Clawson wrote:
Nice to hear all the comments, recommendations, and indeed some success
stories here. I too have a treadmill problem. Although I'm blessed with a
radio-friendly spouse who always asks before she starts it up, I'd like to
add a line filter. Ferrites on the cord don't by themselves squelch it.
Ferrites on the cord don't work on 160 meters if they are of
the single turn class: easy to use, but ineffective, clamp on beads.
What does have a chance of working is 15 or so turns on a 2.4 inch O.D.
toroid. Impedance varies as the square of the number of turns, so
15 turns is like 225 beads. Fair-Rite Products also makes some large
clamp on ferrites that you can wind with a lot of turns. The advantage
of these is that the plug on the end of the cord is no longer a
constraint.
Rick N6RK
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
|