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Total 29 documents matching your query.

1. Re: [RFI] Guidance on finding noise? (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Fri, 10 Jan 2020 22:37:24 -0600; OK, SOMEONE had to correct the subject line. -- Scott K9MA k9ma@sdellington.us _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/; /archives//html/RFI/2020-01/msg00069.html (8,893 bytes)
2. Re: [RFI] Guidance on finding noise? (score: 1): Author: Michael Martin <mike@rfiservices.com>; Date: Sat, 11 Jan 2020 07:48:44 -0500; LOL Get BlueMail for Android _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi; /archives//html/RFI/2020-01/msg00070.html (9,465 bytes)
3. Re: [RFI] Guidance on finding noise? (score: 1): Author: Kenny Silverman <kenny.k2kw@gmail.com>; Date: Sat, 11 Jan 2020 22:03:00 -0500; KC4D,N3AC and N3CW went hunting with a KX3 and a DX Engineering Amplified RX loop and again didnt find anything conclusive. Basically they said the loop performed about the same as one of the AM radi; /archives//html/RFI/2020-01/msg00076.html (9,289 bytes)
4. Re: [RFI] Guidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Sun, 12 Jan 2020 03:16:53 +0000 (UTC); Kenny, Did you whip out your VHF and UHF beams with an AM rx mode receiver once close to the suspect poles? That is the only way, and it is a conclusive way, that I have found to ID noisy power poles; /archives//html/RFI/2020-01/msg00077.html (9,715 bytes)
5. Re: [RFI] Guidance on finding noise? (score: 1): Author: Kenny Silverman <kenny.k2kw@gmail.com>; Date: Sat, 11 Jan 2020 23:03:01 -0500; The noise is mainly on 160. Slight to no noise on 80/40, and no detection at AM VHF. Regards , Kenny K2KW _______________________________________________ RFI mailing list RFI@contesting.com http://li; /archives//html/RFI/2020-01/msg00078.html (9,952 bytes)
6. Re: [RFI] Guidance on finding noise? (score: 1): Author: donovanf@starpower.net; Date: Sun, 12 Jan 2020 00:53:26 -0500 (EST); Hi Kenny, RFI on 160 and not on any higher frequencies isn't a typical characteristic of power line RFI. I woudn't recommend giving anyone a list of a dozen poles... 73 Frank W3LPL -- Original Messag; /archives//html/RFI/2020-01/msg00079.html (10,645 bytes)
7. Re: [RFI] Guidance on finding noise? (score: 1): Author: Kenny Silverman <kenny.k2kw@gmail.com>; Date: Sun, 12 Jan 2020 03:59:07 -0500; Hi Frank, I knew the answer but had to ask anyway. KC4Ds son lives to the SE of him so he is putting up a EU beverage for the 160 CW contest - he walked the land with an AM radio and it appeared quie; /archives//html/RFI/2020-01/msg00080.html (11,804 bytes)
8. Re: [RFI] Guidance on finding noise? (score: 1): Author: Don Kirk <wd8dsb@gmail.com>; Date: Sun, 12 Jan 2020 03:59:36 -0500; Hi Ken, I totally agree with Frank, and I would never report anything to anyone including the power company until you are 99.9 percent sure you have identified the suspect property. Regarding power l; /archives//html/RFI/2020-01/msg00081.html (11,472 bytes)
9. Re: [RFI] Guidance on finding noise? (score: 1): Author: WW3S <ww3s@zoominternet.net>; Date: Sun, 12 Jan 2020 07:12:40 -0500; What is the transmit antenna(s) ? Need to make sure its not noise reradiated by a vertical or inverted L Sent from my iPad _______________________________________________ RFI mailing list RFI@contest; /archives//html/RFI/2020-01/msg00082.html (10,689 bytes)
10. Re: [RFI] Guidance on finding noise? (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Sun, 12 Jan 2020 07:29:26 -0600; Just something to add to the database: I recently had a noise source appear on 160. As per my usual procedure, I re-transmitted the 160 noise to my cellphone and took a walk with the VHF tracker. (Th; /archives//html/RFI/2020-01/msg00083.html (9,926 bytes)
11. Re: [RFI] Guidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Sun, 12 Jan 2020 13:33:10 +0000 (UTC); Kenny, I have gone after and found many 'sources' on 160, and the last step involved resolving to the an actual specific power pole using VHF and UHF. I have not had one case yet where the pole was a; /archives//html/RFI/2020-01/msg00084.html (10,501 bytes)
12. Re: [RFI] Guidance on finding noise? (score: 1): Author: Don Kirk <wd8dsb@gmail.com>; Date: Sun, 12 Jan 2020 09:48:35 -0500; Scott (K9MA) asked "wonder if a two-turn loop a foot square could be made to work on 160". Hi Scott, I use various portable tuned loops for DFing 160 meters and 80 meters (see attached picture). One; /archives//html/RFI/2020-01/msg00085.html (11,907 bytes)
13. Re: [RFI] Guidance on finding noise? (score: 1): Author: Kenny Silverman <kenny.k2kw@gmail.com>; Date: Sun, 12 Jan 2020 10:25:42 -0500; Its a 130 shunt fed tower. The closet beverage is about 20 from the 100 radius radial field. The noise only comes on at night and goes off at dawn so we didnt consider this reradiation from the verti; /archives//html/RFI/2020-01/msg00086.html (11,506 bytes)
14. Re: [RFI] Guidance on finding noise? (score: 1): Author: Lee STRAHAN <k7tjr@msn.com>; Date: Sun, 12 Jan 2020 18:14:41 +0000; Kenny and All, I have a noise here in Central Oregon that sounds very similar to the one you are chasing. There is a wood products plant about 2000 feet from my shack and antennas. The noise is worst; /archives//html/RFI/2020-01/msg00088.html (13,393 bytes)
15. Re: [RFI] Guidance on finding noise? (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Sun, 12 Jan 2020 18:18:49 +0000; Once on site, you might try a much smaller loop instead of a 'real' antenna. Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* *Just Think* _______________________________________________ RFI mai; /archives//html/RFI/2020-01/msg00089.html (14,573 bytes)
16. Re: [RFI] Guidance on finding noise? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Sun, 12 Jan 2020 10:53:50 -0800; RIGHT! It is quite likely that the noise K2KW and crew are chasing is NOT generated by the power system, but rather some electronic or power control device in a home or business. Traditional methods; /archives//html/RFI/2020-01/msg00090.html (10,959 bytes)
17. Re: [RFI] Guidance on finding noise? (score: 1): Author: Dave Cole <dave@nk7z.net>; Date: Sun, 12 Jan 2020 12:22:57 -0800; Here is a link to the SDR as a site survey tool pages: https://www.nk7z.net/sdr-rfi-survey-p1/ 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL; /archives//html/RFI/2020-01/msg00091.html (11,550 bytes)
18. Re: [RFI] Guidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Sun, 12 Jan 2020 21:18:07 +0000 (UTC); This may be a case where the marine DF receiver succeeds, and a simple DF loop fails. With the simple DF loop one is unable, repeat, *unable* to resolve the __180 degree ambiguity__ that the 'null' o; /archives//html/RFI/2020-01/msg00092.html (11,598 bytes)
19. Re: [RFI] Guidance on finding noise? (score: 1): Author: Kenny Silverman <kenny.k2kw@gmail.com>; Date: Sun, 12 Jan 2020 20:01:57 -0500; Hi Lee, thanks for your story! KC4D has the DX Engineering vertical array laying on the ground so we may look at that as the sense antenna. The current project we were looking At was a better 2m dete; /archives//html/RFI/2020-01/msg00093.html (14,432 bytes)
20. Re: [RFI] Guidance on finding noise? (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Sun, 12 Jan 2020 22:53:22 -0600; I can't stress enough the value of listening to the noise received by your HF receiver at the home QTH while you are listening to tracking receivers.There is always a pattern to the noise; when you f; /archives//html/RFI/2020-01/msg00094.html (14,869 bytes)

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