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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Earth\s+modes\s+and\s+ebnaut\?\s*$/: 13 ]

Total 13 documents matching your query.

1. LF: Earth modes and ebnaut? (score: 1)
Author: Chris Wilson <[email protected]>
Date: Tue, 31 May 2016 15:34:41 +0100
31 May 2016 Assuming it's legal to transmit VLF using earth modes, and this seems an grey area, is anyone using Ebnaut for this communication method? if I tried to master the complexities of it, not
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-05/msg00240.html (8,056 bytes)

2. Re: LF: Earth modes and ebnaut? (score: 1)
Author: [email protected]
Date: Wed, 1 Jun 2016 04:01:15 -0400
Chris should be able to hear any signal from you, already have electrodes in place about 50m apart and over 4m deep into the water table. Lot of noise on them with several volts from a local mw tx! N
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00000.html (10,533 bytes)

3. Re: LF: Earth modes and ebnaut? (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 01 Jun 2016 11:42:40 +0200
Sounds interesting. I've managed about 50km with 250W and a 700m long wire. But that was in 3.8 mHz, which is fast mode for VLF. But it was one of the standard modes these days :-) Before TXing EbNau
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00001.html (12,156 bytes)

4. Re[2]: LF: Earth modes and ebnaut? (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 1 Jun 2016 11:39:04 +0100
Hello DK7FC, Wednesday, June 1, 2016 Thanks for the reply G4WGT is just over 50 miles away as the crow flies. What's my best way to generate a very very stable carrier at VLF? I have a 10 MHz and 1PP
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00002.html (11,163 bytes)

5. Re: LF: Earth modes and ebnaut? (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 1 Jun 2016 11:45:01 +0100
Tuesday, May 31, 2016 Hello Dave (GW8GLO), Only saw your post below tagged on to the bottom of Stefan's reply to me, I don't see it in my e-mail from the reflector for some reason. I am quite keen to
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00003.html (10,610 bytes)

6. Re: LF: Earth modes and ebnaut? (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 1 Jun 2016 11:59:18 +0100
Hello Dave, GW8GLO, Tuesday, May 31, 2016 You don't see to be on QRZ, how far away fro my home QTH are you? I am IO82qv, UK post code SY13 2BT. Wondering if you are nearer or further away than G4WGT?
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00004.html (10,189 bytes)

7. Re: LF: Earth modes and ebnaut? (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 01 Jun 2016 13:55:34 +0200
Am 01.06.2016 12:39, schrieb Chris Wilson: What's my best way to generate a very very stable carrier at VLF? There are different philosopies as you know. But i find the really best (and easiest) way
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00005.html (13,457 bytes)

8. Re: LF: Earth modes and ebnaut? (score: 1)
Author: [email protected]
Date: Thu, 2 Jun 2016 03:38:32 -0400
OK Chris I have built some time ago a elf transceiver that is sound card based using a usb card. It works from about 10hz to 20khz, needs finishing but it is working. All I need is a good high power
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00010.html (11,696 bytes)

9. Re: LF: Earth modes and ebnaut? (score: 1)
Author: [email protected]
Date: Thu, 2 Jun 2016 03:40:09 -0400
Just south of welshpool in the severn valley, good earth! 73 Dave --Original Message-- From: Chris Wilson <[email protected]> To: Chris Wilson <[email protected]> Sent: Wed, 1 Jun 2016
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00011.html (11,088 bytes)

10. Re: LF: Earth modes and ebnaut? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Thu, 2 Jun 2016 21:29:36 +0100
Chris, Some years ago (before my stroke!) I had correspondence with OFCOM about earth-mode (through the ground conduction) communication at VLF. Basically they did not want to know and were not at al
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00012.html (13,410 bytes)

11. RE: LF: Earth modes and ebnaut? (score: 1)
Author: James Cowburn <[email protected]>
Date: Thu, 2 Jun 2016 21:50:27 +0100
They weren't overly concerned when some of us were trying with normal rf transmission. We had to liaise with the team of storm watchers at the met office but it was all very relaxed Jim G7NKS From: o
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00013.html (16,457 bytes)

12. Re: LF: Earth modes and ebnaut? (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Sun, 5 Jun 2016 07:34:54 +0000
That's encouraging as I contemplate the blank NoV application in front of me. It is necessary to supply some detail to calculate things like ERP and field strengths. Tricky without building and testi
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00025.html (11,709 bytes)

13. Re[2]: LF: Earth modes and ebnaut? (score: 1)
Author: Chris Wilson <[email protected]>
Date: Tue, 7 Jun 2016 15:07:03 +0100
Hello Roger and all the other VLF folk, Thursday, June 2, 2016 Sorry for the late reply, work has taken me away from play, but I want to thank you all for some very helpful replies. I am hoping later
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00040.html (13,784 bytes)


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