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#1
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Cecil Moore wrote:
Andy wrote: Interesting about is could be power line noise. At my last QTH, the culprit on 40m was a ~33 foot ground wire running down my front yard power pole from a transformer and capacitor. It caused my vertical to have 2 S-units more noise than my horizontal dipole. Cecil; Don't quit there! Did you ever manage to have it "fixed?" How did you manage it? Who did you report it to? Thanks in advance, regards, JS |
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#2
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In article ,
John Smith wrote: Cecil Moore wrote: Andy wrote: Interesting about is could be power line noise. At my last QTH, the culprit on 40m was a ~33 foot ground wire running down my front yard power pole from a transformer and capacitor. It caused my vertical to have 2 S-units more noise than my horizontal dipole. Cecil; Don't quit there! Did you ever manage to have it "fixed?" How did you manage it? Who did you report it to? Thanks in advance, regards, JS Usually the your Electrical Utility, will have a supervisor in the Distribution Department, that is responsible for dealing with interference issues. Some utilities are more responsive than others. When I lived down in the Flatlands, (Seattle, WA) Seattle City Light had a guy that regularly meet with the local Interference Committee which also included an FCC Engineer, the local ARRL Section Mgr, and just about all the Marine and LMR Service Shops. He was also a Ham, and used the information, developed by the committee, to track down broken and failing insulators thru out their Distribution System. The one outfit we could NEVER get to join the committee, was the Cable TV Franshisee, and they generated MOST of the complaints. Now I live out in the bush, and generate ALL my own power, so I am the Utility, and I have to find and fix all the LF/MF/HF Noise if I want to hear better. I usually have an MF/HF noise floor of less that 1.5 S-Units on my Kenwood TS690. I can hear, way farther than I can Talk, due to the local Noise at the Receiving Station, masking out my transmissions. It is frustrating to hear folks on 75 Meters with S-7 Signals, but they can't hear me, due to S-9 noise at their end. -- Bruce in alaska add path after fast to reply |
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#3
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John Smith wrote:
Did you ever manage to have it "fixed?" How did you manage it? Who did you report it to? The power pole ground wire didn't appear to be broken, just radiating like crazy. I managed it by transmitting on the vertical and receiving on the dipole. In the process of A/B comparisons, I discovered that the vertical was never better than the dipole and usually worse. The EZNEC comparisons are on my web page at: http://www.w5dxp.com/dipvsver.htm To be fair, since receiving was limited to East/ West QSOs, the Extended Zepp beat the socks off the vertical. -- 73, Cecil http://www.w5dxp.com |
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#4
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Aw, come on Cecil. You just didn't have the vertical oriented right.
Sort of tilt it in the right direction... you know? - 'Doc (Yeah, I know I'm gonna regret that, but I couldn't resist.) |
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#5
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#6
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Cecil Moore wrote:
John Smith wrote: Did you ever manage to have it "fixed?" How did you manage it? Who did you report it to? The power pole ground wire didn't appear to be broken, just radiating like crazy. I managed it by transmitting on the vertical and receiving on the dipole. In the process of A/B comparisons, I discovered that the vertical was never better than the dipole and usually worse. The EZNEC comparisons are on my web page at: http://www.w5dxp.com/dipvsver.htm To be fair, since receiving was limited to East/ West QSOs, the Extended Zepp beat the socks off the vertical. On 40m, most run horiz. Horiz-to-horiz is always going to beat horiz-to-vert. Knowing you and your strong personality (at least from the news group) I thought you might had been able to secure a fix from the power companies' noise emissions. Was just wondering, and probably wouldn't have helped with my problem anyway ... Right now, I have an issue with a noise source I cannot even pinpoint and is very broadband (and no, it is not BPL -- already ruled that out, lol.) Noise is for blocks and remains fairly constant in strength. This would lead me to think it was powerlines; however, the powerlines are all underground! Which leads me to believe some noise IS on the powerlines and the radiation is coming from the wiring in each individual home/business. However, a scope, properly isolated and hooked to my wiring doesn't give me a picture I can correlate to ... :-( If it ain't one thing, it is another ... keeps life interesting, I guess. Regards, JS |
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#7
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John Smith wrote:
On 40m, most run horiz. Horiz-to-horiz is always going to beat horiz-to-vert. That would certainly be true for ground-wave. But the effect is minimized by polarization getting scrambled through ionospheric reflection. -- 73, Cecil http://www.w5dxp.com |
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#8
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Cecil Moore wrote:
John Smith wrote: On 40m, most run horiz. Horiz-to-horiz is always going to beat horiz-to-vert. That would certainly be true for ground-wave. But the effect is minimized by polarization getting scrambled through ionospheric reflection. True, but isn't the horiz better suited for placing more signal in a skywave which is, generally, more useful? i.e., a high vertical can put a whopping skywave signal into Australia--but is better suited for ground wave in USA--while a horiz does an acceptable ground wave and skywave here in the USA, and the world, of course ... ? (and of course, there are exceptions) Etc. It seems that way for me, anyway ... verticals are my main choice from necessity ... however, thank God I dumped that "big property" at the top of the market for this smaller place! grinning-ear-to-ear I'd imagine, by the end of the year, or middle of next, I can buy back the old place for 1/3 to 1/4 of what I sold it for, IMHO we are just at the beginning of the "downhill run!" having-a-heart-attack-from-sheer-joy! Life is good ... Regards, JS |
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