[time-nuts] Slow death of Waas 48
SAIDJACK at aol.com
SAIDJACK at aol.com
Wed Jul 7 17:23:48 UTC 2010
Hi Magnus,
Just read up on their website, they cannot disable the WAAS signal because
it would disable all GPS WAAS landing approaches in the USA. A very big
deal. When it fails, they will be landing aircraft with only one GPS bird for
a while, and no backup!
So it will continue to transmit, until it looses earth-lock, which they
expect to happen in the next couple of weeks due to the Sat's momentum wheels
saturating..
Exciting stuff!
BTW: seems like no one is monitoring this on their GPSDO's?
bye,
Said
In a message dated 7/7/2010 01:05:07 Pacific Daylight Time,
magnus at rubidium.dyndns.org writes:
If it still has power, oriented in the right direction (antennas down)
and they keep beaming signals to it, it will work. If they don't beam
signals into it, it would still sit there and broadcast, so they might
as well use it. The best thing for them would be a loss of orientation
control if not a complete power failure would save them. If it spins, it
will get less power and less amount of time it would be facing the earth
with it's noise transmissions.
Cheers,
Magnus
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