Search String: Display: Description: Sort:

Results:

References: [ +from:n1rj@roadrunner.com: 37 ]

Total 37 documents matching your query.

1. [RFI] Interesting RFI source (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Tue, 08 Mar 2011 13:16:39 -0500
Recently I had a loud (S9) pulse interference show up on 160m. It came on right about sunset so I suspected a malfunctioning sodium vapor streetlight. I tuned my car radio to 1710 kHz and drove aroun
/archives//html/RFI/2011-03/msg00002.html (7,147 bytes)

2. Re: [RFI] 2nd try - URL for the W8WWV RFI writeup (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Wed, 04 Apr 2012 08:19:20 -0400
Hi Pete.... As you can see my email program (Thunderbird) wordwraps part of the URL. The wrapped part is not highlighted and does not appear in the address line when clicked. 73, Roger -- Remember th
/archives//html/RFI/2012-04/msg00004.html (9,288 bytes)

3. Re: [RFI] 2nd try - URL for the W8WWV RFI writeup (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Wed, 04 Apr 2012 12:29:16 -0400
That works fine here -- Remember the Liberty (AGTR-5) http://www.usslibertyveterans.org/ http://www.gtr5.com/ _______________________________________________ RFI mailing list RFI@contesting.com http:
/archives//html/RFI/2012-04/msg00007.html (9,200 bytes)

4. Re: [RFI] AM Radio Interference On 75 meters (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Tue, 18 Sep 2012 13:32:39 -0400
I did a quick study using PRFIntermod. One interesting possibility popped up. 3rd harmonic of KFBK minus 630 kHz (local station) produces a sig on 3960. 73, Roger -- Remember the Liberty (AGTR-5) htt
/archives//html/RFI/2012-09/msg00119.html (7,876 bytes)

5. Re: [RFI] Noise changes when room lights turn on / off- NOISE FOUND!!!!! (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sat, 22 Sep 2012 19:23:02 -0400
Are the porch lights photocell controlled? My neighbor had a controlled lamp at the end of his driveway. He replaced the incandescent bulb with a CFL. Horrible noise! I found that some of the older c
/archives//html/RFI/2012-09/msg00146.html (11,547 bytes)

6. Re: [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sun, 11 Nov 2012 15:13:21 -0500
Hi Dave... I'm seeing the same thing here! Multiple occurances from the BC band up thru 160m. The 160 noise covers 1788 to 1836. I noticed that the freq spread decreases as one goes down in freq so I
/archives//html/RFI/2012-11/msg00032.html (8,093 bytes)

7. [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sat, 24 Nov 2012 09:20:12 -0500
Here is a NaP3 view of the noise that's bothering me. I've narrowed it down to a group of houses about a mile away. The noise is on 24/7 so that eliminates a lot of things. Could it be a home alarm s
/archives//html/RFI/2012-11/msg00051.html (7,901 bytes)

8. Re: [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sat, 24 Nov 2012 09:30:49 -0500
Well! It looks like the site stripped off my JPG. I was hoping someone might recognize the distinctive spectrum. Without that, we're pretty much reduced to the "I have a noise. Anybody know what it c
/archives//html/RFI/2012-11/msg00052.html (8,189 bytes)

9. Re: [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sat, 24 Nov 2012 14:03:42 -0500
I went out DFing today with a portable radio. The bearings and signal strength indicate a pole with some kind of cable TV box hanging close to it (an amplifier?). Anyone know if these could be a prob
/archives//html/RFI/2012-11/msg00054.html (8,622 bytes)

10. Re: [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Sun, 25 Nov 2012 09:26:54 -0500
Dave, K1TTT, has kindly put my spectrum file at: http://www.k1ttt.net/160m_rfi/2012_11_24_n1rj_Noise.jpg The noise seems to repeat every 158 kHz up and down the spectrum. Roger D Johnson wrote: Here
/archives//html/RFI/2012-11/msg00055.html (9,242 bytes)

11. Re: [RFI] any ideas on this one? (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Tue, 27 Nov 2012 16:48:31 -0500
Several folks have asked for an audio file of this noise. I don't hear anything distinctive about it...it just sounds like a buzz. Looking at the audio spectrum from the receiver is interesting. Ther
/archives//html/RFI/2012-11/msg00062.html (8,452 bytes)

12. [RFI] Noise Problem (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Mon, 03 Dec 2012 14:05:30 -0500
The problem continues. I found out that the cable amps are powered by 60 VAC sent down the cable. The cable company sent a tech out at 1 AM to disconnect power to that leg of the system. I was very d
/archives//html/RFI/2012-12/msg00009.html (7,991 bytes)

13. [RFI] Telephones and DSL (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Thu, 13 Dec 2012 15:48:09 -0500
I got out a telescoping fiberglas pole, taped a sniffer antenna to it and took it out to the suspect pole. The telco line seems to be hot with the RFI that's been bugging me. Tha cable TV line about
/archives//html/RFI/2012-12/msg00045.html (8,140 bytes)

14. Re: [RFI] Telephones and DSL (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Fri, 14 Dec 2012 15:17:48 -0500
Here it is Friday afternoon and no response from Fairpoint. Does anyone know how to get in touch with any of their maintenance people in the Portland, Me area? Thanks, Roger Roger D Johnson wrote: I
/archives//html/RFI/2012-12/msg00057.html (8,878 bytes)

15. [RFI] RFI on 160m (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Mon, 21 Jan 2013 03:34:37 -0500
I've finally located the source of my interference! It's in a house about 1 mile away. The occupant of this house is a very paranoid acting guy with a beard named Kevin who has been very uncooperativ
/archives//html/RFI/2013-01/msg00096.html (6,534 bytes)

16. [RFI] RFI on 160m (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Mon, 21 Jan 2013 05:26:58 -0500
I should have mentioned that "Kevin" is renting the property. According to a neighbor, the owner has moved to Texas and I can't find an address of phone number for him. 73, Roger -- Remember the Libe
/archives//html/RFI/2013-01/msg00098.html (7,290 bytes)

17. [RFI] RFI 160m (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Mon, 21 Jan 2013 06:51:27 -0500
Does anyone have the proper path to make a complaint to the FCC about this type of interference? I've been all over the web and the FCC site and cannot find the relevant section. Thanks, Roger -- Rem
/archives//html/RFI/2013-01/msg00101.html (6,420 bytes)

18. Re: [RFI] RFI on 1.8 mhz (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Tue, 22 Jan 2013 07:36:10 -0500
The problem with audio recordings is that many noise sources sound the same. Waveforms or a spectrum plot is often needed to pin down the source. 73, Roger the post has been met with derisive remarks
/archives//html/RFI/2013-01/msg00109.html (9,387 bytes)

19. [RFI] Display for SDR-IQ (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Wed, 29 Jan 2014 15:08:43 -0500
I use my SDR-IQ and laptop for tracking down RFI. Unfortunately, it lacks a conventional oscilloscope (amplitude vs time) display. Does anyone know of a program with this capability? 73, Roger -- Rem
/archives//html/RFI/2014-01/msg00019.html (7,048 bytes)

20. Re: [RFI] LED Bulbs (score: 1)
Author: Roger D Johnson <n1rj@roadrunner.com>
Date: Wed, 12 Feb 2014 09:12:26 -0500
Unfortunately, interference to amateur radio appears to be VERY low on the FCC priorities list. I'll probably be an SK long before they act on my complaint! 73, Roger ________________________________
/archives//html/RFI/2014-02/msg00044.html (7,948 bytes)

Current List: 1 - 20
Page: [1] [2]
This search system is powered by Namazu