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Carl R. Stevenson wrote:
S9+10 on a VERY short whip (an "Outbacker Joey") is a pretty huge signal to me ... with BPL proposing to go up to 80 MHz, I would think that the FM broadcast band is at relatively low risk, though FM receivers could experience some degree of "desense" if the BPL signal at the front end was strong enough due to proximity. TV channels 2, 3, 4, and 5 will get clobbered by the junk going up to 80MHz. The video signal is AM modulated onto the channel carrier (with a portion of the lower sideband suppressed) and will have no ability to reject the BPL noise. The effect would be somewhat similar to a sparky vacuum cleaner motor throwing white and black spots throuout the picture. The sound, being FM, will fare better. Well, there's digital HDTV, but most everyone still uses analog TV. And I don't get cable or satellite. |
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