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1. Re: LF: T/A (score: 1)
Author: Bill de Carle <>
Date: Wed, 30 Jul 2014 09:17:03 -0400
Just a trace here, way too much static last night. http://www.magma.ca/~ve2iq/grabs/ Bill VE2IQ Surprisingly good copy despite high QRN levels ... http://www.w1vd.com/grabber.html
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-07/msg00104.html (10,747 bytes)

2. Re: LF: T/A (score: 1)
Author: Bill de Carle <>
Date: Wed, 30 Jul 2014 11:34:09 -0400
Hi Stefan: Nice to see your callsign in the summer! I was using the same old orthogonal loops configured to favor signals coming in from NE (or SW). Guess one of these days I should put a relay box o
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-07/msg00109.html (12,339 bytes)

3. Re: LF: Re: Anyone there? (score: 1)
Author: Bill de Carle <>
Date: Thu, 21 Aug 2014 20:47:47 -0400
http://www.magma.ca/~ve2iq/grabs/ 73, Bill VE2IQ
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00117.html (11,192 bytes)

4. Re: LF: Re: Anyone there? (score: 1)
Author: Bill de Carle <>
Date: Fri, 22 Aug 2014 08:48:09 -0400
Nothing here Stefan but you were visible on Jay's grabber last night. The SNR here doesn't seem right, I'll look into it today. Thanks for transmitting. 73, Bill VE2IQ Did you copy me? I just found t
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00125.html (11,677 bytes)

5. LF: Re: LF tonite (score: 1)
Author: Bill de Carle <>
Date: Sat, 06 Dec 2014 19:32:37 -0500
My grabber is active here: www.magma.ca/~ve2iq/grabs/ 73, Bill VE2IQ 73, Stefan Am 07.12.2014 00:03, schrieb DK7FC: Hi LF, I'm back on LF, running some traditional DFCW-90 on 136.172 kHz until daylig
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00070.html (9,956 bytes)

6. LF: SAQ in Ontario (score: 1)
Author: Bill de Carle <>
Date: Wed, 24 Dec 2014 11:44:05 -0500
Conditions here in Westmeath, Ontario (FN15nt) were relatively good last night. Here is the message part - would be easy copy if we could get rid of the static crashes: http://www.magma.ca/~ve2iq/mes
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00270.html (8,731 bytes)

7. Re: LF: 8 dB sensitivity improvement on DK7FC's LF RX/grabber. Activity please (score: 1)
Author: Bill de Carle <>
Date: Thu, 01 Jan 2015 16:20:39 -0500
I'll leave the grabber on: http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html (in the moment i have a QSO with DF6NM, thus the RX is overloaded but tonite it will be clean). 73,
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00022.html (13,547 bytes)

8. Re: LF: VO1NA last night (score: 1)
Author: Bill de Carle <>
Date: Wed, 14 Jan 2015 20:13:06 -0500
I'm very grateful for the great news about the new antenna and that Mother Nature hasn't grounded it (yet). If she does, it only means another workout for me. Yesterday an invigorating hour was spent
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00304.html (10,796 bytes)

9. Re: LF: 137.777 kHz (score: 1)
Author: Bill de Carle <>
Date: Mon, 23 Feb 2015 19:50:29 -0500
The TX is QRV again, QRSS100. Grabber on tonight (E-probe antenna) http://www.magma.ca/~ve2iq/grabs/ Bill
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-02/msg00248.html (9,045 bytes)

10. Re: LF: Coherent BPSK on LF using EbNaut (score: 1)
Author: Bill de Carle <>
Date: Fri, 25 Sep 2015 10:41:35 -0400
Somewhere around February, 2004, Bill de Carle, VE2IQ, came out with a version of AFRICAM that implemented GPS-synched BPSK. A number of us played with it in the 160-190 kHz U.S. "Lowfer" band. The G
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-09/msg00125.html (11,338 bytes)

11. Re[2]: LF: Idiot's guide to receiving Ebnaut? - Tutorial part2 (score: 1)
Author: Bill de Carle <>
Date: Tue, 25 Oct 2016 08:10:53 -0400
Watch out for another possible ambiguity: how are you going to ensure the rising edge of the divider's 1-Hz output pulse is synchronized with the start of a UTC second? Bill VE2IQ Monday, October 24,
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00322.html (14,204 bytes)

12. Re: LF: Article on forward error correction (score: 1)
Author: Bill de Carle <>
Date: Mon, 26 Dec 2016 14:02:47 -0500
There should be a "Nicholson limit" for how well something of a certain complexity can be explained using a given number of words with a high probability of being understood correctly. Your paper is
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-12/msg00330.html (11,501 bytes)

13. Re: VLF: Some natural signals (score: 1)
Author: Bill de Carle <>
Date: Mon, 01 May 2017 18:46:12 -0400
My grabber is currently active in FN15nt (70 uHz/bin) centered on 8270 Hz. Might be able to see Joe if he puts a carrier on the air for a few hours. http://www.magma.ca/~ve2iq/grabs/ Bill VE2IQ Am 01
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00012.html (11,475 bytes)

14. Re: LF: 137 NIL (score: 1)
Author: Bill de Carle <>
Date: Wed, 21 Jan 2009 12:45:14 -0500
Hi Dave, thanks for the post. Nothing like a discussion about simple antennas which work magically :-) Your sketch shows a short at the point where the 1' wide feedline connects to the loop (if I int
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00389.html (9,939 bytes)

15. Re: LF: Deep copy... (score: 1)
Author: Bill de Carle <>
Date: Thu, 05 Mar 2009 09:58:04 -0500
At 09:25 PM 3/4/2009, you wrote: I seem to get best results while trying to pull signals out of the noise when the AGC of the receiver is OFF as well as the Noise Blanker and Noise reduction features
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00333.html (11,820 bytes)

16. Re: LF: WE2XGR/2 in WOLF (score: 1)
Author: Bill de Carle <>
Date: Fri, 11 Sep 2009 20:35:46 -0400
Below are two decodings from the *same* recording. Radio tuned to 508.600 Khz for nominal 799.988 Hz audio output, so Jay is at 699.988 and John is at 899.988 Hz (200 Hz higher). Recording started at
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-09/msg00032.html (12,750 bytes)

17. Re: LF: Wolf Config Settings (score: 1)
Author: Bill de Carle <>
Date: Fri, 11 Sep 2009 05:00:40 -0400
At 04:38 AM 9/11/2009, I wrote: [..] once you accumulate half a Hz of frequency offset adding in more samples actually hurts more than it helps because ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (that should be
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-09/msg00136.html (9,167 bytes)

18. Re: LF: Wolf Config Settings (score: 1)
Author: Bill de Carle <>
Date: Fri, 11 Sep 2009 04:38:17 -0400
For work at 500 kHz, I'd be tempted to go no longer than 16 frames. I'm beginning to think that the fast fades and poorer phase stability hurt the build-up of copy. While you may get your first clear
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-09/msg00358.html (12,663 bytes)

19. Re: LF: WE2XGR/2 in WOLF (score: 1)
Author: Bill de Carle <>
Date: Fri, 11 Sep 2009 19:20:49 -0400
Jay, this is incredible! I started recording at 2235z - and ran for 30 minutes before transferring the file to my desktop for decoding. During the entire 30 minute period there was absolutely no audi
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-09/msg00391.html (11,078 bytes)

20. Re: LF: WE2XGR/2 in WOLF (score: 1)
Author: Bill de Carle <>
Date: Fri, 11 Sep 2009 21:16:51 -0400
Here is a spectral plot showing both signals together. Actually, 200 Hz was overkill separation as you can see... http://www.nrtco.net/~ve2iq/jay_john.gif The red marker just above the arrow cursor s
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-09/msg00721.html (11,001 bytes)


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