[time-nuts] Loran C returning to a station near you...

Bob Camp kb8tq at n1k.org
Tue Jul 14 22:49:08 UTC 2015


Hi

Not to be to much of a downer here but …..

Loran for timing and an “Eastern WWVB” are two projects that seem to each have a 
life of their own. They seem to come up on some sort of cycle related to sun spots. 
Both have zero (or possibly less than that) percent mind share among those who 
would need to implement them into systems. Since there is major cost on the systems
end, it would take “mandatory use” legislation to get them designed in. Without those
design in’s, *having* a backup system is pretty useless. You are talking about billions of 
dollars and years of effort to hook them up ….

If you are talking about “infinite budget” military systems, some of that may happen. I 
notice in the papers that “infinite budget” does not seem to apply to the US DOD these 
days. For commercial systems, nobody will significantly cut into profits to do something like this. 

Should they do this - sure. Will they do it - nope. 

Bob

> On Jul 14, 2015, at 4:49 PM, paul swed <paulswedb at gmail.com> wrote:
> 
> Poul-Henning,
> The reason to stay with the LORAN C style pulses is very very simple. It
> allows our time-nuts Austrons and SRS to work. Its the only way I get any
> of my tax dollars back. :-)
> The good news is no official government person reads time-nuts.
> Regards
> Paul
> 
> 
> On Tue, Jul 14, 2015 at 12:16 PM, Poul-Henning Kamp <phk at phk.freebsd.dk>
> wrote:
> 
>> --------
>> In message <55A4AC81.1030100 at rubidium.dyndns.org>, Magnus Danielson
>> writes:
>> 
>>> The safety is
>>> relative, in that it takes quite a bit of more infrastructure compared
>>> to the jamming of GPS, and that lies in the wavelength of the signal
>>> than anything else.
>> 
>> If the goal is a reliable backup for GPS, there are smarter ways to
>> use the 100kHz band than Loran-C pulses, and there really isn't much
>> reason to stay compatible with Loran-C receivers.
>> 
>> --
>> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>> phk at FreeBSD.ORG         | TCP/IP since RFC 956
>> FreeBSD committer       | BSD since 4.3-tahoe
>> Never attribute to malice what can adequately be explained by incompetence.
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