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Total 72 documents matching your query.

21. Re: [RFI] BPL (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Wed, 21 Jul 2004 12:00:09 -0700 (PDT)
How about if you just monitor a busy highway patrol channel on low band VHF with a police scanner, and observe that you lose the signal when driving into a BPL area. Also easy for a reporter to repr
/archives//html/RFI/2004-07/msg00158.html (7,355 bytes)

22. RE: [RFI] BPL (score: 1)
Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>
Date: Wed, 21 Jul 2004 22:21:38 -0700
You may be right; I'm no expert on that. I did see this web site: http://radioscanning.wox.org/Scanner/Sounds/sounds.htm with all kinds of recordings of police radio, etc. Could this web site be ill
/archives//html/RFI/2004-07/msg00168.html (7,275 bytes)

23. Re: [RFI] Amateur transceiver must accept interference? (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Fri, 23 Jul 2004 12:25:24 -0700 (PDT)
Slightly OT: A logician (or lawyer) might ask the question: What if a part 15 device interferes with another part 15 device? Does the owner of the interfering device have to fix the interference? The
/archives//html/RFI/2004-07/msg00178.html (7,431 bytes)

24. [RFI] Two tone QRM on 7239 kHz (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 31 Aug 2004 13:33:55 -0700 (PDT)
A 2 tone signal has been intermittently on 7239 kHz. On Saturday, it was there for hours, and necessitated moving the swap net off of 7240. Today, it was there again for a while. I am fairly sure it
/archives//html/RFI/2004-08/msg00078.html (6,946 bytes)

25. [RFI] Phone call from congressman's office re: BPL (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Wed, 1 Sep 2004 13:25:34 -0700 (PDT)
Some months ago, I fired off an anti-BPL letter to my congressman. Today, I got a call from one of his staffers asking what the congressman can do to help (given that there is no bill to vote for). I
/archives//html/RFI/2004-09/msg00013.html (7,384 bytes)

26. RE: [RFI] Phone call from congressman's office re: BPL (score: 1)
Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>
Date: Tue, 7 Sep 2004 08:35:19 -0700
oil down to two basic ones: I hear what you are saying, but the staffer was actually receptive to the interference issue. He noted that the FCC sided with broadcasters over the low power FM broadcas
/archives//html/RFI/2004-09/msg00032.html (9,104 bytes)

27. Re: [RFI] 160 Meter Interference (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 5 Oct 2004 16:58:23 -0700 (PDT)
I had a problem with a streetlight putting out harmonics of 240 kHz, whether on or off. I had the power company replace it with a light that only generated RFI when turned off. They then fixed this b
/archives//html/RFI/2004-10/msg00007.html (7,936 bytes)

28. [RFI] WiFi competing head on with DSL and Cable (score: 1)
Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>
Date: Mon, 11 Oct 2004 21:31:58 -0700
In my silicon valley neighborhood, MetroFi is planning to put in a WiFi network at $19.95 per month. We already have DSL and Cable at about $49.95 per month. Let's hope this is a trend and crowds out
/archives//html/RFI/2004-10/msg00028.html (6,664 bytes)

29. [RFI] PG&E IR line fault detection advertisements (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Thu, 10 Mar 2005 11:33:44 -0800 (PST)
PG&E is running a TV ad campaign touting some infra-red power line fault detection system. Does anyone have info on this? I am wondering if I should add it to my arsenal of power line noise diagnosti
/archives//html/RFI/2005-03/msg00010.html (7,087 bytes)

30. [RFI] Plasma TV's to be obsolete within 2 years (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Sat, 29 Apr 2006 15:48:51 -0700
Mitsubishi has announced a laser/DLP technology that is (according to the hype) supposed to obsolete plasma TV within 2 years. Just wanted to give some hope to the many hams plagued with plasma QRM.
/archives//html/RFI/2006-04/msg00028.html (6,512 bytes)

31. Re: [RFI] Plasma TV's to be obsolete within 2 years (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Sun, 30 Apr 2006 09:27:44 -0700 (PDT)
This new techology will be vastly cheaper. Also, a 100 inch plasma would weigh 100's of lbs and double as a space heater. Whether Sony likes it or not, customers will vote them out of the market, if
/archives//html/RFI/2006-04/msg00031.html (10,231 bytes)

32. Re: [RFI] Towers/Antennas Near 138kV Transmission Lines (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Mon, 14 Aug 2006 13:55:01 -0700 (PDT)
Are those lines dead quiet when it is drizzling/foggy/misting etc? My experiences with those lines is that under those conditions, they get really noisy. I have been able to hear them audibly crackli
/archives//html/RFI/2006-08/msg00040.html (7,837 bytes)

33. Re: [RFI] 138kv power lines (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 15 Aug 2006 17:51:51 -0700 (PDT)
Some real estate market info: When I was looking for property in 1997, I looked at dozens of 10 and 20 acre vacant parcels. I would say at least 1/3 of them turned out to be VERY close to high tensio
/archives//html/RFI/2006-08/msg00062.html (7,940 bytes)

34. Re: [RFI] 138kv power lines (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Wed, 16 Aug 2006 09:38:26 -0700
Petroleum pipelines? We actually encountered a property with an OIL WELL on it (the ownership of which wasn't included in the property). Flood zones are euphemistically called "seasonal ponds" by re
/archives//html/RFI/2006-08/msg00065.html (7,514 bytes)

35. Re: [RFI] DFing an HF RFI source (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Tue, 3 Oct 2006 20:00:12 -0700
I had pretty good luck with a receiving loop (the so-called "shielded" loop made of coax). Orient for a null and the RFI is broadside to the loop. Rick N6RK __________________________________________
/archives//html/RFI/2006-10/msg00013.html (9,555 bytes)

36. Re: [RFI] PG&E vs. SMUD on RFI (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 17 Oct 2006 12:22:30 -0700 (PDT)
I have worked extensively with SMUD on RFI issues. In fact they were just out again last week. Contact me by email (n6rk at arrl dot net) for details. Rick N6RK ______________________________________
/archives//html/RFI/2006-10/msg00023.html (9,654 bytes)

37. Re: [RFI] DFing an HF RFI source (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 17 Oct 2006 12:25:32 -0700 (PDT)
We currently have an intermittent problem with an electric fence. However, it is high up and doesn't seem to have weeds growing on it. Can there be a problem if there is a poor splice in the wire suc
/archives//html/RFI/2006-10/msg00024.html (9,911 bytes)

38. Re: [RFI] wireless power at 6.4 MHz? (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Thu, 16 Nov 2006 20:19:11 -0800
Rick N6RK _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2006-11/msg00042.html (7,498 bytes)

39. Re: [RFI] High Noise Levels on 80m (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Tue, 19 Dec 2006 17:21:28 -0800 (PST)
I recently put up a 30 ft high dipole for 80 meters and compared it to an inverted vee. It was much quieter than the inverted vee. Not just quieter, but better signal to noise ratio. I attribute this
/archives//html/RFI/2006-12/msg00052.html (7,930 bytes)

40. [RFI] Strange radio static problem in vehicle (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Mon, 15 Jan 2007 15:46:25 -0800
My van has a very strange radio static problem observed on the AM BCB radio. If I drive along a road next to a high voltage power line, I get a bunch of static in the AM radio. However, this static o
/archives//html/RFI/2007-01/msg00004.html (6,858 bytes)

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