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#21
January 19th 11, 10:50 AM
posted to rec.radio.shortwave
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Five Basic Steps to Better Shortwave Radio Listening [SWL]
bpnjensen wrote: On Jan 18, 10:10 pm, Bob Dobbs wrote: D. Peter Maus wrote: You sound like you're living in the noise equivalent of the Little Big Horn. Before the last move three years ago I lived close to there. Or so it seemedhttp://img.myph.us/Ar9.jpg From the left is a Butternut 80/40 vertical then an Imax 2000 (CB antenna) for 10, 12, 15 and also mounted on the back porch a Diamond V2000 for 6, 2, 440. then on the roof is a discone plus some UHF WX transponders. In addition to Cox and Ma Bell were 4kv, 12kv distribution feeders, and above that a 138kv tie line (not visible in pic). All of that wire either radiated its own noise or parasitically re-radiated noise of the others so it was often, but not always, difficult to get a precise source to use in the phase noise canceler (ANC-4). The TV antenna was useful to get OTA LA stations like KCAL9, SoCal's premier car chase station. g This looks bad, worse than my situation. I just have the local residential feeder out front, probably 12 kv, and a set of parallel feeders in back that probably range up to 138 kv that serves the industrial park 500 feet west of me. I can often reduce noise from one source with my MFJ-1026 (similar to the ANC-4), but just the one. I hate the idea of piling up multiple MFJs and antennae to try to catch all of the sources. There are some high-tension lines out about 1/2 mile west or so, but they are pretty far. They audibly crackle and snap all the time, though, whenever I ride my bike past them. You need to flee your present location. Karl Knows |
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