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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+Urban\s+Noise\s*$/: 11 ]

Total 11 documents matching your query.

1. [RFI] Urban noise (score: 1)
Author: Tom Thompson <w0ivj@tomthompson.com>
Date: Thu, 11 Feb 2016 20:23:43 -0700
Yesterday, a friend of mine drove down a main street in the suburbs of Denver using a Perseus radio and a wide band antenna. On the 20 mile trip we experienced 45 dB of change in band noise due to va
/archives//html/RFI/2016-02/msg00067.html (7,271 bytes)

2. Re: [RFI] Urban noise (score: 1)
Author: Tom Thompson <w0ivj@tomthompson.com>
Date: Thu, 11 Feb 2016 20:25:47 -0700
I forgot to mention that we were monitoring the entire 40m band. Tom W0IVJ On 2/11/2016 8:23 PM, Tom Thompson wrote: Yesterday, a friend of mine drove down a main street in the suburbs of Denver usin
/archives//html/RFI/2016-02/msg00068.html (7,783 bytes)

3. Re: [RFI] Urban noise (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Thu, 11 Feb 2016 19:42:42 -0800
As my wife says after flipping through her dictionary cover to cover... "Need more words". Kurt _______________________________________________ RFI mailing list RFI@contesting.com http://lists.conte
/archives//html/RFI/2016-02/msg00069.html (6,677 bytes)

4. Re: [RFI] Urban noise (score: 1)
Author: Dave Cole <dave@nk7z.net>
Date: Fri, 12 Feb 2016 04:00:20 -0800
Hi Tom, I assume you were using SDR, could you expand a bit on your setup please...  I will be putting together a SDR radio for RFI location later this year, and any tips would be appreciated.  I am
/archives//html/RFI/2016-02/msg00070.html (8,839 bytes)

5. Re: [RFI] Urban noise (score: 1)
Author: Tom Thompson <w0ivj@tomthompson.com>
Date: Fri, 12 Feb 2016 08:56:53 -0700
Hi Dave, We were using a 3 ft. whip with a high impedance preamp into a Perseus receiver. The antenna system was mounted on the car using a mag mount. I use a similar setup with an SDRPlay receiver.
/archives//html/RFI/2016-02/msg00071.html (8,530 bytes)

6. Re: [RFI] Urban noise (score: 1)
Author: Dave Cole <dave@nk7z.net>
Date: Fri, 12 Feb 2016 08:04:14 -0800
Thanks sir!!!  I am building something smiler to your setup, and the info helps! -- 73's, and thanks, Dave For software/hardware reviews see: http://www.nk7z.net For MixW support see: https://groups.
/archives//html/RFI/2016-02/msg00072.html (9,440 bytes)

7. Re: [RFI] Urban noise (score: 1)
Author: Dave Cole <dave@nk7z.net>
Date: Fri, 12 Feb 2016 08:07:35 -0800
I hate spell checkers...  That should read "similar"... -- 73's, and thanks, Dave For software/hardware reviews see: http://www.nk7z.net For MixW support see: https://groups.yahoo.com/neo/groups/mixw
/archives//html/RFI/2016-02/msg00073.html (8,226 bytes)

8. Re: [RFI] Urban Noise (score: 1)
Author: "Kenneth Goodwin" <krgoodwin@comcast.net>
Date: Fri, 12 Feb 2016 10:44:42 -0600
As I previously posted, when the RFI nails the average consumer it will be addressed. A possible example is in a current situation where the City of Houston is suing Motorola for failure of Motorola'
/archives//html/RFI/2016-02/msg00074.html (7,376 bytes)

9. Re: [RFI] Urban noise (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Fri, 12 Feb 2016 09:23:42 -0800
Was this a surprise? If so, why? Certainly you must have been aware of the proliferation of switch-mode power supplies and other noisy electronics, some of it part of infrastructure for street signal
/archives//html/RFI/2016-02/msg00075.html (8,804 bytes)

10. Re: [RFI] Urban noise (score: 1)
Author: Tom Thompson <w0ivj@tomthompson.com>
Date: Fri, 12 Feb 2016 11:42:23 -0700
Jim, What surprised me was the magnitude. 45 dB above the band noise is a lot!! Tom W0IVJ On 2/12/2016 10:23 AM, Jim Brown wrote: On Thu,2/11/2016 7:23 PM, Tom Thompson wrote: Yesterday, a friend of
/archives//html/RFI/2016-02/msg00076.html (9,348 bytes)

11. Re: [RFI] Urban noise (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Fri, 12 Feb 2016 22:33:32 -0800
Well, consider that the average residence probably has 20-30 noise sources, and most wiring is not shielded by conduit. It's instructive to drive around with a VHF RX set for AM around 160 MHz, or ev
/archives//html/RFI/2016-02/msg00077.html (8,516 bytes)


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