[RFI] TVI
Ron Feutz
feutz at wctc.net
Sat Jan 15 00:09:18 EST 2005
RFI'ers,
I put #43 torroids on both the CAT5 input and the power lead (about 12
turns each), and grounded the chassis of the digital convertor to the
center screw of the AC outlet, and no improvement in my TVI situation. The
only other wire coming out of the convertor is the RG6 cable to the TV
distribution system.
I will try a coax choke on the feedline next, but don't expect any
improvement from that as I have a 400' run laying on the ground to the six
pack switch and the antennas are all beyond that. My shack TV shows no
sign of TVI other than the digital signal freezing and then disappearing
when I key the rig, so I don't think RF coming in via any coax or control
wiring is the culprit. The only time I have consistent problems is on 160
with high power and the 4-square pointed at the house. The problem is
sporadic on 80 and 40, where the antennas are dipoles with current
baluns. No problems on 20-10.
I would appreciate any suggestions from the experts.
73,
Ron KK9K
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