Re: Topband: Warbling Noise around 3513 khz.???? Opinions sought.
Val, A little more news. Not only is it on 3513.5 but, it is also on 1/2 that freq at 1756.75. At 1900Z this afternoon I could hear on both frequencies. Same number of signals in the pass band, about 6 or 7, and they seem to be modulated. I was using AM with +/- 6.6 kHz pass band. Later at 2100Z it was only on 3513.5. I haven't tried higher but, may tonight. I don't have any input filters for the Flex to listen below the BC band with any accuracy. Since we are both hearing it, on the coast and here just North of Atlanta, it is either being transmitter or has something to do with the power grid. Maybe Tom, W8JI, can get a good direction on it. I have a problem with my little K9AY, the plug has corroded and I can't change direction right now. If it off the power grid it will be coming from everywhere. Does anyone else hear this signal? 73, Jim K4DLI On 8/31/2014 12:05 PM, Hugh Valentine wrote: Good Day, Like most I am trying to prepare for Top Band season. I have a mystery noise which Warlbes and slightly shifts Freq. centering around 3513.5 Khz.I can disconnect most everything in house, including Modems, Computers, Fluorescents,TVs, Gadgets and am down to using a 12V battery on the K3, connected to any outside antenna, including RX ant., and can still hear this noise. Anyone experience this type noise around this frequency? And what have you found?Possible Smart meter noise? But it is pretty constant, there all the time, not on and off periodically. About all I can conclude so far.I usually have a pin drop quiet environment here on the island where utilities are underground and want to find the source. Thanks for any comments. ValN4RJ The #1 Worst Carb Ever? Click to Learn #1 Carb that Kills Your Blood Sugar #40;Don#39;t Eat This!#41; http://thirdpartyoffers.juno.com/TGL3141/54034804d5702480440e9st03vuc _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Warbling Noise around 3513 khz.???? Opinions sought.
On Mon,9/1/2014 3:25 PM, Jim Streible wrote: Since we are both hearing it, on the coast and here just North of Atlanta, it is either being transmitter or has something to do with the power grid. The fact that you're hearing a sub-harmonic suggests that it is local and generated by a common appliance, signalling of some sort (a security system?), or by a CATV system common to your areas. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Warbling Noise around 3513 khz.???? Opinions sought.
I have the same type noise here, mine reads 3513.3 warbles, at times sounds a little unstable, its on the antenna for sure, I have all underground utilities no close neighbors and nothing on in the home. Quiet location, no smart meter on this house at least. So far I have not been able to find the source. SO interested in what comes to light here. 73 Merv K9FD/KH6 Good Day, Like most I am trying to prepare for Top Band season. I have a mystery noise which Warlbes and slightly shifts Freq. centering around 3513.5 Khz.I can disconnect most everything in house, including Modems, Computers, Fluorescents,TVs, Gadgets and am down to using a 12V battery on the K3, connected to any outside antenna, including RX ant., and can still hear this noise. Anyone experience this type noise around this frequency? And what have you found?Possible Smart meter noise? But it is pretty constant, there all the time, not on and off periodically. About all I can conclude so far.I usually have a pin drop quiet environment here on the island where utilities are underground and want to find the source. Thanks for any comments. ValN4RJ The #1 Worst Carb Ever? Click to Learn #1 Carb that Kills Your Blood Sugar #40;Don#39;t Eat This!#41; http://thirdpartyoffers.juno.com/TGL3141/54034804d5702480440e9st03vuc _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
