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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Loran\s+C\s*$/: 9 ]

Total 9 documents matching your query.

1. Re: LF: Re: Loran C (score: 1)
Author: Stewart Bryant <>
Date: Fri, 20 Jun 2008 11:58:19 +0100
US base stations do need time ... and yes they do have have GPS receivers (which BTW are not cheap) at the towers. However I assumed that we were talking about the UK when I answered. When the IETF T
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00031.html (11,615 bytes)

2. Re: LF: Re: Loran C (score: 1)
Author: "Andy Talbot" <>
Date: Thu, 19 Jun 2008 18:28:56 +0100
Good - I'm glad to know the telecomms opeators have thought about the vulnerabilities inherent with putting all their eggs into the GPS timing basket. I had been told - clearly from a not too informe
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00041.html (13,413 bytes)

3. Re: LF: Re: Loran C (score: 1)
Author: Stewart Bryant <>
Date: Thu, 19 Jun 2008 16:31:17 +0100
Andy Talbot wrote: The article has a very good point to make about GPS jamming though. I think its probably the first time I've seen it talked about in the open-press. Our telecomms infrastructure no
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00079.html (11,495 bytes)

4. RE: LF: Re: Loran C (score: 1)
Author: "Chris Trayner" <>
Date: Thu, 19 Jun 2008 18:46:12 +0100
source - that GPS timing units were used at each base station. I'd guess not. Why would they bother? They've got links (whether microwave or landline) back to somewhere more central. The more centra
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00091.html (10,586 bytes)

5. Re: LF: Re: Loran C (score: 1)
Author: "Andy Talbot" <>
Date: Thu, 19 Jun 2008 21:43:22 +0100
The whole over-air interface for the mobile phone system has to be locked - the frame structure in GSM is critical to microseconds, and has to be synchronised between all base stations. I believe 3G
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00111.html (12,644 bytes)

6. Re: LF: Re: Loran C (score: 1)
Author: "Andy Talbot" <>
Date: Thu, 19 Jun 2008 08:41:19 +0100
The article has a very good point to make about GPS jamming though. I think its probably the first time I've seen it talked about in the open-press. Our telecomms infrastructure now is so critically
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00127.html (12,739 bytes)

7. Re: LF: Re: Loran C (score: 1)
Author: "Graham" <>
Date: Thu, 19 Jun 2008 00:24:07 +0100
'Gee' , I'm not so sure of that , takes a lot to put a 'mk1 eye ball' off the track , good at spotting the wood in the trees or in this cases the snake in the 'grass' , could all ways , try a 'Aspiri
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00137.html (11,359 bytes)

8. Re: LF: Re: Loran C (score: 1)
Author:
Date: Thu, 19 Jun 2008 14:01:23 -0400
in the General/Verizon phone system we only converted from SXS equipment in the late 80s this was in southern Pa where I worked. We had computer controlled systems but just to set up connections the
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00139.html (11,945 bytes)

9. LF: Re: Loran C (score: 1)
Author: "Alan Melia" <>
Date: Wed, 18 Jun 2008 22:10:08 +0100
So Loran is not easy to jam ?????? I bet it would be possible to neutralize Harwich Harbour, Sally Baskers HQ quite easily the signals are not that strong here....it just need a low power tx operatin
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-06/msg00143.html (10,227 bytes)


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