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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+carried\s+powerline\s+noise\s+on\s+15m\s+and\s+20m\s*$/: 9 ]

Total 9 documents matching your query.

1. [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Tue, 15 Feb 2022 21:43:37 -0500
My radio shows about S4 noise on15m when the beam is oriented towards the nearest power pole. There is S3 noise on 10m and almost none on 20m and below. The noise is canceled completely with NB so I
/archives//html/RFI/2022-02/msg00071.html (7,257 bytes)

2. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Tue, 15 Feb 2022 21:19:46 -0800
What else is in that direction? One or more houses? A city? Any towers that hold antennas for 2-way or cell systems? Especially at higher frequencies like you're hearing, power doesn't travel very fa
/archives//html/RFI/2022-02/msg00072.html (8,469 bytes)

3. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Charles Plunk <af4o@twc.com>
Date: Wed, 16 Feb 2022 02:24:36 -0600
Ignacy, I sent you a more detailed message direct. Have you got a VHF yagi you could more accurately pinpoint its direction? If so, does the VHF noise match the HF noise? Helps a lot if the noise goe
/archives//html/RFI/2022-02/msg00073.html (9,591 bytes)

4. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Wed, 16 Feb 2022 13:32:55 +0000 (UTC)
I want to "second" what Charles wrote! Always make sure the 'rabbit' you're after with VHF/UHF is the one bothering you on HF!! I have chased down 160m and 80m noise sources that were miles away and,
/archives//html/RFI/2022-02/msg00074.html (10,688 bytes)

5. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Charles Plunk <af4o@twc.com>
Date: Wed, 16 Feb 2022 10:09:23 -0600
Jim, Reminds me of Gunsmoke. When tracking the bad guys, they look for clues to make sure its the right tracks :-). Chuck W4NBO I have chased down 160m and 80m noise sources that were miles away and,
/archives//html/RFI/2022-02/msg00075.html (11,666 bytes)

6. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: "Hare, Ed, W1RFI" <w1rfi@arrl.org>
Date: Fri, 18 Feb 2022 02:56:51 +0000
This is critical! If you have a noise and 6 sources around you, you may hear only one of them. Some propagate down the lines for a long distance, while others are strong locally, but drop off rapidly
/archives//html/RFI/2022-02/msg00077.html (13,001 bytes)

7. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Fri, 18 Feb 2022 12:11:25 -0500
Hi Ed, Your "critical" information is great advice. I'm also not the least impressed with one of the local power companies (name not given to protect the guilty) that uses the Radar Engineers Model 2
/archives//html/RFI/2022-02/msg00090.html (17,606 bytes)

8. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: Michael Aust via RFI <rfi@contesting.com>
Date: Fri, 18 Feb 2022 21:38:28 +0000 (UTC)
Don  Have the IC-705 just as an RFI portable unitand has great Audio Scope and the ability to record audio file for analysis of the noise is a plus for locating RFI from BC, HF, VHF and UHF bands Wor
/archives//html/RFI/2022-02/msg00098.html (18,833 bytes)

9. Re: [RFI] carried powerline noise on 15m and 20m (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Fri, 18 Feb 2022 21:46:35 +0000
If you don't require "DC to Light" coverage with an SDR, even the USB dongles can offer you full coverage of any amateur band below 70-cm. Cost is quite minimal and HDSDR operates them and offers bot
/archives//html/RFI/2022-02/msg00099.html (20,918 bytes)


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