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1. LF: RE: New RX site at DK7FC (score: 1)
Author: <>
Date: Wed, 30 Jul 2014 09:34:59 -0700
Stefan, Congratulations and best wishes for great RX! If I can be of any help regarding practical solar charger system design (optimizing overall system cost, performance and reliability) in your (li
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-07/msg00112.html (14,267 bytes)

2. RE: LF: USB Sound Card? (score: 1)
Author: <>
Date: Fri, 15 Aug 2014 16:12:24 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00082.html (17,744 bytes)

3. RE: LF: USB Sound Card? (score: 1)
Author: <>
Date: Fri, 15 Aug 2014 20:32:17 -0400
Graham and Tobias, Thanks for all of the information, I'm looking forward to implementing the options that you mentioned. 73, Jim AA5BW Thanks for the run down Tobias The windows re-sampling caused p
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00090.html (20,528 bytes)

4. RE: VLF: W4DEX in Europe at 8820 Hz (score: 1)
Author: <>
Date: Tue, 2 Dec 2014 13:54:21 -0500
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00041.html (31,470 bytes)

5. RE: VLF: W4DEX in Europe at 8820 Hz (score: 1)
Author: <>
Date: Thu, 4 Dec 2014 14:28:35 -0500
Paul, Good info and results! LWPC is acknowledged as having a rather poor terminator model; no suggested workaround that I know of, other than customized LWPC or other customized EIW modeler. Do you
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00062.html (13,428 bytes)

6. LF: RE: 8819.9 Hz in Virginia? (score: 1)
Author: <>
Date: Thu, 11 Dec 2014 14:56:40 -0500
Paul, I wish that was my signal but unfortunately I'm not on the air. Thank you for your previous feedback; I am working to add 10dB - 15dB TX power per your suggestion. I see (here in northern Virgi
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00099.html (10,818 bytes)

7. RE: VLF: 8819.9 Hz in Virginia? (score: 1)
Author: <>
Date: Fri, 12 Dec 2014 10:17:42 -0500
Paul, I've been monitoring near 8820 since Dex's prior transmission (assessing and mitigating noise in case Dex switches on again). I don't have good absolute-frequency calibration at this northern V
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00110.html (12,155 bytes)

8. RE: LF: Re: 8957 Hz (score: 1)
Author: <>
Date: Sat, 13 Dec 2014 17:58:04 -0500
Paul and Dex, Thanks for great data. The phase data is interesting as always; especially since models still lag empirical data. In the absence of accurate analytical modeling tools for VLF propagatio
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00124.html (13,179 bytes)

9. LF: RE: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <>
Date: Thu, 18 Dec 2014 14:10:41 -0500
Nice work Dex and Paul! 73, Jim AA5BW --Original Message-- From: [mailto:] On Behalf Of Paul Nicholson Sent: Thursday, December 18
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00157.html (10,711 bytes)

10. LF: RE: RE: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <>
Date: Thu, 18 Dec 2014 14:17:12 -0500
Does this mean that ERP is now well above 150uW? 73, Jim AA5BW --Original Message-- From: [mailto:] On Behalf Of
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00158.html (11,261 bytes)

11. RE: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <>
Date: Thu, 18 Dec 2014 16:42:55 -0500
Stunning. Great work Paul and Dex! Fine noise management too; 11dB @ 0.12fT and 278 uHz implies approximately 2fT/root-Hz aggregate noise? Jim AA5BW Last night was the best reception of W4DEX so far
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00160.html (12,178 bytes)

12. RE: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <>
Date: Fri, 19 Dec 2014 12:23:24 -0500
Paul, Impressive (low) system noise and agreement of Example 6 model with results. 73, Jim AA5BW aggregate noise? That's about right for a quiet night. That's after sferic blanking - before the blank
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00164.html (11,108 bytes)

13. RE: VLF: Transatlantic messages at 8822Hz (score: 1)
Author: <>
Date: Mon, 5 Jan 2015 14:43:34 -0800
Paul, Congratulations to you, Dex and the rest of the team on this work, including 73% channel capacity in the midst of many constraints! I had planned to ask if you thought that any atmospheric phas
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00130.html (15,206 bytes)

14. RE: VLF: Transatlantic messages at 8822Hz (score: 1)
Author: <>
Date: Tue, 6 Jan 2015 12:21:47 -0800
Paul, Thank you! I'm always looking forward to higher SNRs that could enable applications of the types that you mentioned below. The rarity (that you so aptly described) of useable (calibrated or val
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00143.html (14,015 bytes)

15. LF: RE: Path measurement by group delay (score: 1)
Author: <>
Date: Wed, 7 Jan 2015 09:03:24 -0800
Paul and Markus, That's inspiring especially in a watt-for-watt or pound-for-pound context, with respect to some legacy systems. At roughly 1E6 pounds for an OMEGA transmitter/antenna-system with pre
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00167.html (12,508 bytes)

16. LF: RE: VLF "staircase" (score: 1)
Author: <>
Date: Tue, 7 Jul 2015 11:49:42 -0400
Hello Stefan, I was not monitoring this morning so I did not see the signal tuning between 13 kHz - 14 kHz but I will look for it in the future. During the past two weeks I have noticed a signal tuni
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-07/msg00046.html (11,562 bytes)

17. LF: Familiar? (score: 1)
Author: <>
Date: Wed, 8 Jul 2015 12:50:19 -0400
TACAMO? Jim AA5BW Attachment: 150708 .png Description: PNG image
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-07/msg00051.html (8,626 bytes)

18. RE: VLF: Tweek mode resonances (score: 1)
Author: <>
Date: Mon, 20 Jul 2015 00:46:14 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-07/msg00087.html (26,105 bytes)

19. RE: LF: Activity Day, Sun 9 Aug (score: 1)
Author: <>
Date: Fri, 7 Aug 2015 16:43:34 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-08/msg00030.html (17,956 bytes)

20. RE: LF: VLF in VO (score: 1)
Author: <>
Date: Sun, 20 Dec 2015 17:56:24 -0500
Paul, Ref: " I can easily see 10uW from 1000km in one hour over a path with a lot of land. West to east over water will be lower loss and four or six hours integration will make up for the lower ERP.
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-12/msg00364.html (12,653 bytes)


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