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Noise in the a/c line
#11

THE NOISE CANNOT BE SUPPRESSED BY PLACING ANY CAPACITORS IN THE LINE OF THE DEVICE GENERATING THE NOISE. CAPACITORS IN THE LINE ONLY HELP SLIGHTLY WITH STRONG SIGNALS RECEIVED ON THE OUTDOORS POWER LINES. NOISE IS FREQUENTLY GENERATED BY THE POWER SUPPLIES OF COMPUTERS, FLOURESCENT LIGHTING, ALL SORTS OF ELECTRIC MOTORS (ALL SPARKS GENERATE GROAD SPECTRUM RF INTERFERENCE AS IN SPARK GAP TRANSMITTER). THE WOOD STOVE HAS AN IGNITER OF THE WOOD PELLET. PERHAPS THAT DEVICE WHEN IT IS ACTIVATED GENERATES THE NOISE, OR PERHAPS THE POWER SUPPLY FOR THAT DEVICE. IT REACHES YOUR RADIO AS A RADIO SIGNAL, IN OTHERWORDS IT IS A RADIO ENERGY RECEIVED IN YOUR PHILCO'S ANTENNA, NOT TRANSMITTED VIA THE POWER LINES. MODERN HIGH END RADIOS HAVE VARIOUS NOISE SUPPRESSOR CIRCUITS, BUT THE VENERABLE PHILCO BEING THE CHAMP ANALOG RADIO THAT IT IS SIMPLY PASSES THIS NOISE THROUGH. YOU WOULD HAVE NO SUCCESS TRYING TO FILTER IT AS IT IS VERY BROADBAND. UNFORTUNATELY YOU MAY HAVE TO CHOOSE BETWEEN THE PELLET STOVE AND THE PHILCO AT A GIVEN TIME, BUT AT LEAST YOU ISOLATED THE PROBLEM. THE MOST UNUSUAL ELECTRIC APPLIANCES CAN BE AT FAULT. TURNING OFF ONE CIRCUIT BREAKER AT A TIME IN THE HOUSE WHILE MONITORING THE RECEIVER CAN ISOLATE THE OUTLETS INVOLVED, THEN PROCEEDING TO THE INDIVIDUAL DEVICES IS THE NEXT STEP.


Messages In This Thread
Noise in the a/c line - by Robert - 11-26-2008, 10:52 PM
Re: Noise in the a/c line - by rghines1 - 11-27-2008, 10:04 AM
Re: Noise in the a/c line - by Robert - 11-27-2008, 10:56 AM
Re: Noise in the a/c line - by rghines1 - 11-27-2008, 04:41 PM
Re: Noise in the a/c line - by radiomikee - 11-28-2008, 08:39 AM
Re: Noise in the a/c line - by Robert - 11-28-2008, 06:55 PM
Re: Noise in the a/c line - by exray - 11-28-2008, 07:11 PM
Re: Noise in the a/c line - by Robert - 11-29-2008, 08:32 AM
Re: Noise in the a/c line - by exray - 11-29-2008, 08:41 AM
Re: Noise in the a/c line - by Robert - 11-29-2008, 08:53 AM
Re: Noise in the a/c line - by radiomikee - 12-04-2008, 12:37 PM
Re: Noise in the a/c line - by radiomikee - 12-04-2008, 12:44 PM
Re: Noise in the a/c line - by DeckApe - 12-04-2008, 01:35 PM
Re: Noise in the a/c line - by Texasrocker - 12-07-2008, 12:37 AM
Re: Noise in the a/c line - by DeckApe - 12-07-2008, 11:03 AM
Re: Noise in the a/c line - by codefox1 - 12-12-2008, 10:15 AM
Re: Noise in the a/c line - by Robert - 12-13-2008, 10:06 AM
Re: Noise in the a/c line - by radiomikee - 12-15-2008, 01:01 PM
Re: Noise in the a/c line - by exray - 12-16-2008, 09:24 AM



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