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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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