[ntp:questions] Sure gps looses all sattelite fixes

John Hasler jhasler at newsguy.com
Fri Feb 24 21:03:29 UTC 2012

unruh writes:
> ...there is a sattelite receiver on the roof, but it is blocked by a
> row of offices on the roof between the puck and the sattelite
> receiver. It could be broadcasting to the sattelite and increasing the
> noise at the receiver.(That receiver communicates with the MOST
> microsattelite-- a tiny 6" telescope to look at fluctuations in light
> from stars to measure the internal structure of the stars). But I do
> not believe that they would be broadcasting for 15 hours steadily.

I'd suggest investigating it.  Even if the transmitter is not on all the
time (and I wouldn't be certain it isn't) the receiver may be on and
it's local oscillator may be leaking enough to jam you.  Those cheap GPS
receivers have poor front-end selectivity and are easily overloaded.

John Hasler 
jhasler at newsguy.com
Dancing Horse Hill
Elmwood, WI USA

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