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[snip]

: : GPS can only be used where the satellites can be
: : "seen" by the receiver.
: :
: : Which is the entire planet.
:
: Those bits of it with an uninterrupted view of the sky,
: anyway. Doesn't work too well in my basement office. Or
: under the canopy of trees on the road outside my house.
:
: Neither do any of the traditional time and frequency
: stations without a working antenna.

True, but my internet-connected computers don't need a working antenna,
they get their info from the ntp server :-)

73 Ivor G6URP