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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+noise\s*$/: 28 ]

Total 28 documents matching your query.

1. Topband: noise (score: 1): Author: Skip Reba" <ws9v@royell.net (Skip Reba); Date: Wed, 27 Dec 2000 07:35:02 -0600; Hi all I have looked for noise at both of my QTH's over the years. When I was in the city I tracked noise down to a bad lug (i.e. connection) of aluminuim wire used as entrance cable on a house about; /archives//html/Topband/2000-12/msg00156.html (7,132 bytes)
2. TopBand: Noise (score: 1): Author: S21YP@granger.bdonline.com (Bob G3REP); Date: Sat, 09 Jan 1999 14:51:22 +0600; Some reflectees are commenting on the directivity of noise on the band. This may be due to skywave propagation and could be an indicator of directivity of propagtion to an area generating noise parti; /archives//html/Topband/1999-01/msg00089.html (8,004 bytes)
3. TopBand: noise (score: 1): Author: K0CKD.ennis@mcleodusa.net (Dennis G. Peterson); Date: Wed, 18 Feb 1998 15:39:22 -0600; Does anyone have the article or maybe the webb-page for the noise sniffer unit for sniffing out annoying noise sources on topband. I believe there was an article published in either 73 or CQ magazine; /archives//html/Topband/1998-02/msg00195.html (6,719 bytes)
4. Topband: Noise (score: 1): Author: Craig Clark <jcclark@wildblue.net>; Date: Wed, 04 Jan 2006 10:35:25 -0500; Steve, Glad to have you with us and it sounds like you have the beginnings of a very nice top band station. Good luck. Tom makes many good points but forgot to deal with one other important issue, w; /archives//html/Topband/2006-01/msg00040.html (9,198 bytes)
5. Topband: noise (score: 1): Author: "Gary Nichols" <kd9sv@comcast.net>; Date: Wed, 4 Jan 2006 15:02:54 -0500; I have in addition to noise that comes on with the street lights and stays on until the lights go off in the morning another noise that sounds like a unstable data transmission of sorts and it appear; /archives//html/Topband/2006-01/msg00045.html (6,922 bytes)
6. Re: Topband: noise (score: 1): Author: "Brad Rehm" <brehm@ptitest.com>; Date: Wed, 4 Jan 2006 17:19:38 -0600; "...sounds like a unstable data transmission of sorts and it appears every 36 khz through the band starting at 1812 repeating at 1848, 1884, etc... "Thanks, de gary, kd9sv" That one might be a switch; /archives//html/Topband/2006-01/msg00054.html (7,538 bytes)
7. Re: Topband: noise (score: 1): Author: "K9AY" <k9ay@k9ay.com>; Date: Thu, 5 Jan 2006 10:13:14 -0600; -- -- Or a CRT monitor if the frequency is stable, although a switching supply is lights. And you can occasionally get birdies from linear power supplies -- I had this happen with an old Pyramid sup; /archives//html/Topband/2006-01/msg00069.html (7,747 bytes)
8. Topband: noise (score: 1): Author: W7lr@aol.com; Date: Sun, 14 Jan 2007 13:12:34 EST; Noise is a frequent topband topic and consideration. Here is a germ on an idea - I dont know if new or already well known. When I was in Thailand in 1964 (as HS1L) we had a research lab for Stanford; /archives//html/Topband/2007-01/msg00265.html (7,621 bytes)
9. Re: Topband: noise (score: 1): Author: Tree <tree@kkn.net>; Date: Sun, 14 Jan 2007 14:46:43 -0800; I have two things I can offer. I have brought out the signal that gets asserted when a noise pulse is detected on a TS850. It essentially acts like a wired-OR circuit. I tuned one radio up out of the; /archives//html/Topband/2007-01/msg00269.html (9,558 bytes)
10. Re: Topband: noise (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Sun, 14 Jan 2007 15:56:52 -0800 (PST); I don't know about Motorola, but Collins had a system with a 40 MHz receiver. However, it was just a noise blanker. The only thing unique was listening on 40 MHz instead of near the receive frequency; /archives//html/Topband/2007-01/msg00270.html (7,976 bytes)
11. Re: Topband: noise (score: 1): Author: <armin.ficza@nokia.com>; Date: Mon, 15 Jan 2007 13:59:47 +1300; Hi Bob I think, there is an another way to solve this problem. I am just working on a SDR receiver project, using some top class components, like Minicircuit decoders and LT1028: http://www.linear.co; /archives//html/Topband/2007-01/msg00273.html (7,742 bytes)
12. Re: Topband: noise (score: 1): Author: "Missouri Guy, N0TT" <n0tt1@juno.com>; Date: Mon, 15 Jan 2007 17:27:12 +0000; Edwin Armstrong, who long ago invented the Armstrong oscillator and other things, used a scheme to "eliminate" static. He used one antenna, two identical radios (regens!) connected to that antenna,; /archives//html/Topband/2007-01/msg00286.html (8,011 bytes)
13. Re: Topband: noise (score: 1): Author: W2pm@aol.com; Date: Wed, 17 Jan 2007 07:59:26 EST; The theory was that the noise (static) received by both radios would cancel in the primary, leaving a clear (or nearly so), static-free signal in his headphones. Interesting.... 73, Charlie Audio nul; /archives//html/Topband/2007-01/msg00295.html (7,286 bytes)
14. Re: Topband: noise (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Wed, 17 Jan 2007 09:43:14 -0500; I've loooked at this extensively over the years. (Ssince 1969 or 70!) Here are the problems: We have to define the noise. If it is impulse noise with a short duty and is idential in time period on a; /archives//html/Topband/2007-01/msg00296.html (12,154 bytes)
15. Re: Topband: noise (score: 1): Author: John Kaufmann <john.kaufmann@verizon.net>; Date: Wed, 17 Jan 2007 09:25:58 -0600 (CST); Absolutely correct. The engineering definition of white noise is that the noise is statistically uncorrelated at any two different frequencies. Ambient background noise is generally white. In practic; /archives//html/Topband/2007-01/msg00298.html (8,441 bytes)
16. Topband: Noise (score: 1): Author: calle.jonsson@sverige.nu; Date: Wed, 28 Nov 2007 16:39:51 +0100 (CET); During the past month or so I have noticed a machine-like noise on top band. It is strongest approximately on 1865 kHz where I can hear an intermittent oink-oink-oink sound lasting about 0.7 seconds; /archives//html/Topband/2007-11/msg00235.html (6,842 bytes)
17. Re: Topband: Noise (score: 1): Author: marko <xrmarko@gmail.com>; Date: Wed, 28 Nov 2007 19:03:25 +0200; During the past month or so I have noticed a machine-like noise on top band. the noise has been there indeed for more than one month. Here in OH the noise strenght is up to s7 time to time and direct; /archives//html/Topband/2007-11/msg00237.html (7,269 bytes)
18. Re: Topband: Noise (score: 1): Author: Peter Sundberg <sm2cew@telia.com>; Date: Thu, 29 Nov 2007 14:19:58 +0000; In SM2 the noise is well above S9 most times, and as far as I can see the direction is SE from here. I have not been able to establish an on/off pattern, but it is a total relief when this noise gene; /archives//html/Topband/2007-11/msg00251.html (7,800 bytes)
19. Topband: Noise (score: 1): Author: Art <k6xt@arrl.net>; Date: Thu, 04 Dec 2008 07:12:04 -0700; I have a noise to find. Periodic 1 sec on, 1 sec off. Audible on 160 and 80. K3 noise blanker takes most of it out. A hash sound. Anyone recognize it? 73 Art _________________________________________; /archives//html/Topband/2008-12/msg00036.html (6,516 bytes)
20. Topband: Noise (score: 1): Author: rick darwicki <n6pe@yahoo.com>; Date: Wed, 11 Nov 2009 17:41:38 -0800 (PST); Yesterday I did something I have been wanting to do for a long time. I shutoff all the house breakers and unplugged the computer UPS. They I hooked up the PRO III to a 12 volt car battery. Sad to say; /archives//html/Topband/2009-11/msg00315.html (6,403 bytes)

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