[time-nuts] Loran C sounds

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Feb 14 08:34:56 UTC 2010


In message <C33E8481-7F7B-4E45-AC70-9FB896AB6C88 at gmail.com>, Neville Michie wri
tes:

>We had a system of secondary radar called DME [...]

DME is still going strong, and is the main GPS-Backup over Europe
for air-traffic.

>I do not know how shipping located themselves.

Possibly Omega...

-- 
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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