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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+NA\s+VLF\s*$/: 87 ]

Total 87 documents matching your query.

1. LF: NA VLF (score: 1)
Author:
Date: Sun, 7 May 2017 18:25:59 -0230 (NDT)
With any luck the new helix will not arc and the 10 uW carrier on 8270.007 Hz will remain QRV until further notice. Stefan has reassured me that I probably won't cause too much QRM on 8270 but please
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00067.html (10,964 bytes)

2. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 06:06:54 +0000
There's a bit of a peak forming after 6 hours, but it's 46.3 uHz on the high side of 8270.007 - that's one FT bin high. http://abelian.org/vlf/tmp/170508a.gif Will keep an eye on it as the day progre
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00070.html (12,210 bytes)

3. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 06:46:06 +0000
Noise is coming from the south west, Joe is on bearing 280. I shifted the beam north to 310 to reduce the noise quite a lot (and the signal a bit too) - Now in 39.7 uHz http://abelian.org/vlf/tmp/170
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00072.html (12,254 bytes)

4. Re: LF: NA VLF (score: 1)
Author: Markus Vester <>
Date: Mon, 8 May 2017 03:23:21 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00073.html (11,282 bytes)

5. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 07:25:35 +0000
8270.007 is not a whole number of cycles in 24 hours. Will SL make a phase step at some point, perhaps midnight local or midnight UT? -- Paul Nicholson --
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00074.html (12,180 bytes)

6. Re: LF: NA VLF (score: 1)
Author: Markus Vester <>
Date: Mon, 8 May 2017 03:38:56 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00075.html (10,806 bytes)

7. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 08:22:43 +0000
Ok. There was mention of locking SL to NAA some emails ago but maybe that was for reception. Anyway, I shifted the 6 hour window back an hour, 22:00 to 04:00 UT to get http://abelian.org/vlf/tmp/170
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00076.html (11,277 bytes)

8. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 08:35:41 +0000
I just ran LWPC for the midnight path with 10uW ERP and it comes back with 0.069 fT. http://abelian.org/lwpc/?date=2017-05-08+00%3A00&txlat=47.773&txlon=-52.7&freq=8.27&txpow=10e-6&rxlat=53.703&rxlon
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00077.html (11,388 bytes)

9. RE: LF: NA VLF (score: 1)
Author: <>
Date: Mon, 8 May 2017 05:01:31 -0400
First TA calibration of a TX antenna current meter with LWPC I just ran LWPC for the midnight path with 10uW ERP and it comes back with 0.069 fT. http://abelian.org/lwpc/?date=2017-05-08+00%3A00&txla
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00079.html (11,760 bytes)

10. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 11:35:52 +0000
Daytime signal is measuring 0.04 fT 08:00 to 11:00 which also agrees with LWPC. If this is VO1NA, we should get a good result if Joe is able to keep the transmitter going and phase-stable until 20:0
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00080.html (11,364 bytes)

11. RE: LF: NA VLF (score: 1)
Author: <>
Date: Mon, 8 May 2017 08:30:53 -0400
The quantitative agreement is amazing and impressive The water path and favorable Dst dont hurt estimation, but the long remainder of the error budget chain appears to be impressively controlled. Rea
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00081.html (11,977 bytes)

12. Re: LF: NA VLF (score: 1)
Author:
Date: Mon, 8 May 2017 11:22:01 -0230 (NDT)
Hi Paul, Markus, Group, The level of expertise on this group is humbling and these results are amazing. The carrier was generated with an undisciplined 10 MHz DOCXO clocking an ad9851. As Markus poin
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00083.html (11,968 bytes)

13. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Mon, 8 May 2017 15:45:58 +0000
Watson-Watt calculation from the antenna amplitudes and phases of the overnight signal gives 244 degrees which is reasonable given the background noise from the south west (pulling the apparent beari
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00084.html (13,141 bytes)

14. Re: LF: NA VLF (score: 1)
Author: DK7FC <>
Date: Mon, 08 May 2017 18:04:32 +0200
Hello Joe, Congratulations for the impressive results from your 10 uW signal. Seems you are having a good start into VLF now. I hope i can see you here one day. My loop is already showing in your dir
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00085.html (13,061 bytes)

15. RE: LF: NA VLF (score: 1)
Author:
Date: Mon, 8 May 2017 18:01:50 -0230 (NDT)
Thanks Jim, Good to learn that I put the decimal point in the right place for the ERP! 73 Joe The quantitative agreement is amazing and impressive The water path and favorable Dst dont hurt estimatio
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00089.html (11,484 bytes)

16. Re: LF: NA VLF (score: 1)
Author:
Date: Mon, 8 May 2017 20:04:01 -0230 (NDT)
Thank-you Stefan, It is good to have a source of inspiration. Your ULF work is a fine example. Yes, 100 uW should be possible and your tree is the next milestone for the VLF photons. 73 Joe Hello Joe
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00090.html (13,372 bytes)

17. Re: LF: NA VLF (score: 1)
Author:
Date: Mon, 8 May 2017 18:09:17 -0230 (NDT)
Thank-you Paul. Your RX setup and processing are fantastic. 2.6 electrons on an e probe - that delights me! EbNaut and 100 uW are the next goals. 73 Joe Watson-Watt calculation from the antenna ampli
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00091.html (12,828 bytes)

18. Re: LF: NA VLF (score: 1)
Author: Markus Vester <>
Date: Mon, 8 May 2017 17:05:38 -0400
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00092.html (12,549 bytes)

19. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Tue, 9 May 2017 06:09:20 +0000
The daytime signal peaks at a different frequency, averaging 8270.00709300 Hz +/- 0.5 uHz between 08:00 and 17:00. I'm also seeing the same shift at Forest, VA. The frequency is now close to the DDS
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00093.html (13,681 bytes)

20. Re: LF: NA VLF (score: 1)
Author: Paul Nicholson <>
Date: Tue, 9 May 2017 10:26:45 +0000
I can't detect any signal from Joe last night 8th/9th 22:00 to 04:00, not a trace - perhaps the tx has gone off. After sweeping for optimum settings, I couldn't get much improvement. Daytime receptio
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-05/msg00096.html (11,291 bytes)


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