Mr. RF62 Posted August 26, 2007 Share Posted August 26, 2007 Hi All, I have a problem with some radio interference and its driving me nuts. I have a Yamaha receiver and the signal is coming in loud and strong, but so is this high pitched ringing. Somewhere around the 16kHz - 20kHz range. I'd like to eliminate it if possible. Does someone have an idea. Help would be appreciated. THX. Quote Link to comment Share on other sites More sharing options...
Tarheel Posted August 26, 2007 Share Posted August 26, 2007 Welcome to the forum Mr. RF62. Someone will be with you shortly[] Quote Link to comment Share on other sites More sharing options...
Tarheel Posted August 26, 2007 Share Posted August 26, 2007 Welcome to the forum Mr. RF62. Someone will be with you shortly[] or maybe not.....come on guys.....help out our new forum member from Kingston.....he has been listening to static for three hours now. Quote Link to comment Share on other sites More sharing options...
Groomlakearea51 Posted August 26, 2007 Share Posted August 26, 2007 Is it associated with the station you are listening to? or all stations? and if so, is it there when you are somewhere on the "dial" when there is no station tuned in? Also, try replacing the antenna (don't laugh...) with a single piece of silver solder wire about 6' long, connected to only one of the 75 ohm screw/lock on antenna jacks and see if that eliminates the high freq sound. If it does, then you need a better antenna wire, etc. Quote Link to comment Share on other sites More sharing options...
oldbuckster Posted August 27, 2007 Share Posted August 27, 2007 An Antenna change would be my first choice...........try rabbit ears, to see if reception is better............. Quote Link to comment Share on other sites More sharing options...
Mr. RF62 Posted September 1, 2007 Author Share Posted September 1, 2007 Thanks guys for the help, nothing seems to be helping, it may be something in the apt. building that is doing it, thought there would be some kind of filter i could purchase, but different antennas aren't helping, I've tried just about anything except ones you'd see from pennsylvania...lol. Still hearing the high pitched ring. Quote Link to comment Share on other sites More sharing options...
LarryC Posted September 1, 2007 Share Posted September 1, 2007 I may have missed it -- did you say whether this noise is on all stations, or just one that you've tried? Be sure you have tried everything that Gil McDermott suggested in your thread in the other forum. Also, is the high-pitched ringing sound only on FM (I assume it's FM, not AM you're listening to?), or is it on other sound sources like CDs? You could be right about something in the building. If it's a high-rise, have they changed ("upgraded") the antenna or wiring system recently? Aluminum foil is supposed to reduce RFI (radio frequency interference), so I suggest you take a piece of Reynolds wrap, fold it over a few times, and thoroughly cover the backside of your receiver or tuner with the thickened aluminum. Wrap it tightly around ALL your input and output jacks, including any grounding screw, input-output jumpers if you have them, and inputs from your phono if you have a pair of those. Tightly cover ALL the unused jack openings, too! RFI is very mysterious and sometimes requires a lot of trial-and-error work, which frequently still doesn't work. Larry Quote Link to comment Share on other sites More sharing options...
Islander Posted September 1, 2007 Share Posted September 1, 2007 Aluminum foil is supposed to reduce RFI (radio frequency interference), so I suggest you take a piece of Reynolds wrap, fold it over a few times, and thoroughly cover the backside of your receiver or tuner with the thickened aluminum. Wrap it tightly around ALL your input and output jacks, including any grounding screw, input-output jumpers if you have them, and inputs from your phono if you have a pair of those. Tightly cover ALL the unused jack openings, too! Larry Couldn't wrapping metal foil around output jacks cause some bad short circuits? Quote Link to comment Share on other sites More sharing options...
LarryC Posted September 1, 2007 Share Posted September 1, 2007 Couldn't wrapping metal foil around output jacks cause some bad short circuits? Well, it didn't when I had to do it to the back of my previous preamp in order to kill a bad case of RFI. I think the only shorts would be between the shields of RCA the jacks, and those are usually connected to each other anyway by being grounded to the back of the chassis. I suppose there are exceptions. He wouldn't want to short the "hot" pins, of course, but those have always been out of sight in my experience because they're plugged in and so can't be reached by the foil. All XLR connections should be out of reach of the foil, but he shouldn't try to shove the foil between the body of the connector and the back of the unit. Quote Link to comment Share on other sites More sharing options...
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