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Author Topic: Intermittent RFI issue from 10 - 20 meters - Need advice  (Read 8853 times)
KD2CJJ
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Posts: 369




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« Reply #15 on: May 18, 2014, 11:51:13 AM »

So... I just got back from vacation about a week ago and the noise was just faintly there... Just about gone... The noise source that I thought was the issue I don't believe is (the neighbor up the block).  I drove by and that noise is still roaring with the same intensity but on my radio the noise source that I was plagued with was faint until today...  Today a wind storm kicked up and now the noise is back.. not as powerful but its clearly there... I am now more convinced its a power-line.



Has any dealt with PSEG on Long Island?  Any advice before I call?
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73

Mike
KD2CJJ
KD0REQ
Member

Posts: 934




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« Reply #16 on: May 26, 2014, 02:53:59 PM »

an old satellite TV dish and some cheapo ultrasonic transducers off the Radio Shack pegboard, and you can have a detector in little time.  whip up a 45 KHz IF amp and a 386 audio amp for that element with a crystal diode detector, and you have one.  I built a set from old 1962 Popular Electronics plans and boards way back in junior high school, and am still using the receiver for odd troubleshooting to this day.

you can also slip a piece of rubber hose over the element to have a pinpoint noise sniffer.  or use the infamous Pringles can like the wi-fi DXers use to get good Internet from two blocks past where the phone company stops selling fast DSL.

just because somebody can make a thousand bucks with a pretty case and direct marketing to power companies doesn't mean they have a lock on the technique.
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