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#1
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AC Power line noise
Since T-storm seanon is here, and I have ripped my radio room to
shreds, I am reduced to operating from a portable for a few weeks while we rebuild, and rewire the room. In between the recent storms I noticed a new RFI source. A reoccuring crackle. While we found the source, fuse on the input to the power transformer of the house next door, I decided to do some additional research on power line noise. I found a gold mine worth of data on the ARRL page. For those facing power line QRM a little study could be a big help in resolving the problems. http://www.arrl.org/tis/info/powerline-FAQ.html Two sections were very informative: http://www.arrl.org/tis/info/HTML/power_line_handbook/ This shows the "correct" way to do a line noise RF hunt. Even though I can't afford the tools, it does show the "how". And since I can't afford that... http://www.arrl.org/tis/info/pdf/099252.pdf I had been thinking of designing something similar, but why re-invent the wheel. I built one using a Radio Shack Pro16 scanner and tested it around or sub-division. The RECC people are going to get real tired of me. I have already found several very noisy "poles". Again please feel free to enjoy or ignore. Terry |
#2
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AC Power line noise
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#3
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AC Power line noise
wrote in message ups.com... I found a gold mine worth of data on the ARRL page. For those facing power line QRM a little study could be a big help in resolving the problems. http://www.arrl.org/tis/info/powerline-FAQ.html http://www.arrl.org/tis/info/HTML/power_line_handbook/ http://www.arrl.org/tis/info/pdf/099252.pdf Terry Very good info Terry, thanks for the links. Al KA5JGV San Antonio, TX |
#6
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AC Power line noise
RHF wrote:
David - You been Knocking-Up the Wrong Poles recently ? ~ RHF Either you meant 'barking up the wrong pole' or Katrina Kowalska is back in town. mike |
#7
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AC Power line noise
M II,
IIRC - The Five Pound Sledge (5Lbs) is for Tapping the Pole while monitoring the Noise for see 'if' there are any loose connections in the overhead Wires of Equipment. Yes David has many Faults -but- He does not Bark at Poles - Right or Wrong [.] Miss Katrina Kowalska is a Lady of Great Virtue and Temperament; who prides herself on her ethnic background. - - - Please Note that Her Twin Older Brothers are Tag-Team-Members of the WWE and go by the Ring Name "The Crazy-Polocks" http://www.wwe.com/ yes it is that simple - iane ~ RHF |
#8
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AC Power line noise
RHF wrote:
yes it is that simple - iane ~ RHF Thank you for the clarification. Amazing where some mixed up metaphors can lead us. We should encourage them and if this thing ever snowballs, it will set the town on fire. http://therussler.tripod.com/dtps/mixed_metaphors.html mike |
#9
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AC Power line noise
On Sun, 14 May 2006 16:50:49 -0400, dxAce
wrote: I do something like that as well, then I call the power company and they bring out their $5000 + little receiver and yagi antenna and pinpoint the exact source. No problems here at the moment. dxAce Michigan USA That would be quite a large Yagi-Uda at HF frequencies. |
#10
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AC Power line noise
David wrote: On Sun, 14 May 2006 16:50:49 -0400, dxAce wrote: I do something like that as well, then I call the power company and they bring out their $5000 + little receiver and yagi antenna and pinpoint the exact source. No problems here at the moment. That would be quite a large Yagi-Uda at HF frequencies. No ****, Sherlock. Who said the Yagi that they use was an HF one? Go take your meds. dxAce Michigan USA |
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