Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+external\s+noise\s+source\s+identification\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+external\s+noise\s+source\s+identification\s*$/: 8 ]

Total 8 documents matching your query.

1. [RFI] external noise source identification (score: 1): Author: bill K7WXW <K7WXW@qrpdx.org>; Date: Fri, 21 Dec 2018 14:19:14 -0800; GA All My noise reduction project continues. I have been working on noise sources in my house but need some help with what seems to be an external source. For data capture, I am using an RSPro2 and R; /archives//html/RFI/2018-12/msg00052.html (9,452 bytes)
2. Re: [RFI] external noise source identification (score: 1): Author: "Dave Cole (NK7Z)" <dave@nk7z.net>; Date: Fri, 21 Dec 2018 15:43:05 -0800; Hi, Grab an AM radio and see if it is there, if so, use the loop to locate it... If not, build a 2 or 3 foot loop and start hunting... When you do ID it, I would be most interested in what it is, and; /archives//html/RFI/2018-12/msg00053.html (11,427 bytes)
3. Re: [RFI] external noise source identification (score: 1): Author: "David Robbins" <k1ttt@verizon.net>; Date: Fri, 21 Dec 2018 18:45:24 -0500; Well, if you can pick it up on 2' or ladder line in your basement it has to be close. When you power down your house be sure you kill any devices with batteries like UPS's or battery powered or backe; /archives//html/RFI/2018-12/msg00054.html (10,657 bytes)
4. Re: [RFI] external noise source identification (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Fri, 21 Dec 2018 16:03:37 -0800; On 12/21/2018 2:19 PM, bill K7WXW wrote: 015 K7WXW RFI 122118-3 (5MHz sweep, centered at 4.05MHz) - 130' doublet (main antenna, power off, fiber power on) 016 K7WXW RFI 122118-3 (5MHz sweep, cent; /archives//html/RFI/2018-12/msg00055.html (8,731 bytes)
5. Re: [RFI] external noise source identification (score: 1): Author: "Dave Cole (NK7Z)" <dave@nk7z.net>; Date: Fri, 21 Dec 2018 16:11:14 -0800; https://www.nk7z.net/sdr-rfi-survey-p1/ Link to part II is at the bottom of part I 73s and thanks, Dave (NK7Z/NNR0DC) https://www.nk7z.net Award Manager, 30MDG Grid Contest ARRL Technical Specialist; /archives//html/RFI/2018-12/msg00056.html (8,899 bytes)
6. Re: [RFI] external noise source identification (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Sat, 22 Dec 2018 01:42:09 +0000; With the 2' of ladder line connected, hold both hands on the surface of the laptop display. If the noise increases (or decreases), your laptop is at fault. Dave - WØLEV -- *Dave - WØLEV* *Just Let Da; /archives//html/RFI/2018-12/msg00057.html (12,877 bytes)
7. Re: [RFI] external noise source identification (score: 1): Author: Don Kirk <wd8dsb@gmail.com>; Date: Fri, 21 Dec 2018 21:01:39 -0500; Hi Bill, You show these repetitive signals on your SDR setup, but need to make sure they are real. 1) Do you actually hear each of these repetitive signals on your HF rig versus the SDR receiver? 2); /archives//html/RFI/2018-12/msg00058.html (12,284 bytes)
8. Re: [RFI] external noise source identification (score: 1): Author: bill K7WXW <K7WXW@qrpdx.org>; Date: Fri, 21 Dec 2018 18:53:39 -0800; GE Don, Yes I hear them. They aren't like a SMPS or arcing RF audio which is pretty easy to identify but it is not quite white noise either. I am running the system with the gain turned down and the; /archives//html/RFI/2018-12/msg00059.html (13,524 bytes)

Current List: 1 - 8
Page: [1]