USCG Publishes Loran-C Termination; DHS Says Not Needed for GPS Backup

I'm not sure who will really notice when LORAN finally goes off the
air but every system has its legacy constituency.

http://www.insidegnss.com/node/1806

--- CHAS

I know that this has been a big issue in the US but sitting in the
'rest of the world' (which has never had Loran) the arguments were
always a bit perplexing.

GPS has many backups and duplications built in. While it would be
possible to disable it would take enormous worldwide resource and
technology to do this. The only country with the resources to do this
is the one running the system.



wrote:

Largely true.

But the calculation could change if the block IIF suffers the same
fate as, um, lets not talk about that.

If the IIF suffers systemic problems then GPS will enter some pretty
dark times.

(Who uses tin in a satellite anyway ....)

--Mike Jr.

Burnie M wrote:

Definitely untrue!

The only thing needed to "take out" sophisticated sats is a big dumb
rocket powerful enough to put a cloud of ball bearings into the sat orbit.

I believe at least Russia, China and India, and possibly even more
countries, have that capability.

Terje

--
"almost all programming can be viewed as an exercise in caching"

wrote:
.
[snip]

1. GPS satellites are in a high orbit
2. Satellites can be maneuvered to avoid clouds
3. It would certainly be considered an act of war by the nuclear armed
USA

--Mike Jr.