[Elecraft] My KAT500 seems very sensitive to common mode RFI
MontyS
montys at mindspring.com
Sun Feb 15 06:31:34 EST 2015
I echo Don's comment. My MC-60 mic used to be very sensitive to RF in the
shack and my monitor used to click on and off, until I placed common mode
chokes on the coax leaving the antenna tuner, and on the coax feeding a
balun outside the shack. (Antenna is an open-wire-fed 80 meter doublet.) I
no longer have any discernible RF problems, save for my amplified audio
getting a weak buzz when transmitting high power - and that's probably from
radiated RF, not common mode. I have no other chokes on other cables.
Monty K2DLJ
Jeff and all,
I see many hams reporting placing common mode chokes on AC lines, DC
lines, AUX cables and other lines in the shack.
I am of the opinion that the proper use of common mode chokes is on the
antenna feedlines.
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