The most likely cuase is that your receiver front-end is broad enough
to pass the TV2 signal through the RF amplifier, and modulate everything
else being received.
It's difficult to get a low-pass or high-pass filter will a sharp enough
cut-off to do much good. Better solutions are to build a notch filter for
the TV2 video carrier at 55.25 MHz (using a T-connector and a length
of coax trimmed to length, or to buy or build a passband filter for
50-52 MHz.
I had this problem with channel 11 and a 220 MHz receiver, and ended
up building a bandpass filter with a pair of coupled LC tanks, tapped at
50 ohms. Totally eliminated the TV cross-modulation problems.
-- Tom
"GeorgeF" wrote in message
nk.net...
I’m experiencing some strong interference across the 6 meter band which I
believe is coming from a local (within 40 miles) TV channel 2. Where can
I get a filter to deal with this? Is there a low pass filter with a
cutoff at 54 MHz? I only work SSB and CW on 6 so I’m only interested in
the lower portion of the band, if I cut off 52 MHz and above that would be
fine by me…..
George
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