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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*VLF\:\s+W4DEX\s+to\s+IK1QFK\s+at\s+8822Hz\s*$/: 7 ]

Total 7 documents matching your query.

1. VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Thu, 18 Dec 2014 18:53:56 +0000
Another night of poor reception further into Europe but, for a couple of hours W4DEX came out of the noise at Cumiana http://abelian.org/vlf/tmp/141218a.gif and averaged 11.4dB S/N in 139 uHz. Except
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00156.html (9,420 bytes)

2. Re: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Thu, 18 Dec 2014 20:59:57 +0000
Last night was the best reception of W4DEX so far in Todmorden. S/N and phase in one hour steps - 19:00 -1.4dB 20:00 7.0dB -143.2 21:00 7.5dB 133.9 22:00 9.6dB 138.6 23:00 10.8dB 116.4 00:00 12.7dB 1
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00159.html (10,852 bytes)

3. RE: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <[email protected]>
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)

4. Re: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Thu, 18 Dec 2014 22:13:39 +0000
That's about right for a quiet night. That's after sferic blanking - before the blanker the background is some 20dB or more higher. The system noise floor is about 0.2 fT RMS in 1Hz. There happens t
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00161.html (9,851 bytes)

5. RE: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: <[email protected]>
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)

6. Re: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Fri, 19 Dec 2014 18:33:12 +0000
Overnight 2014-12-18/19: The carrier was detectable in IK1QFK's on-line receiver at Cumiana from around 23:00 to 05:00 with a gap around 03:00. It barely shows up on a spectrogram though, http://abel
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00165.html (11,010 bytes)

7. Re: VLF: W4DEX to IK1QFK at 8822Hz (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Sat, 20 Dec 2014 20:20:56 +0000
Last night: 2014-12-19/20 Cumiana IK1QFK - best S/N was 11.2dB from 00:17 to 05:47 in 50.5uHz, http://abelian.org/vlf/tmp/141220a.gif Signal was a bit lower than previous night and the noise a bit hi
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00185.html (10,886 bytes)


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