Hi All,
Just a basic question for an application with low accuracy
requirements. I only need an accuracy of +/- 1 ms on the 1 PPS signal.
Does anyone have any data on the behaviour of a Garmin GPS 16 HVS (or be
able to point me in the right direction to find such data) w.r.t. the 1
PPS output when a valid fix is not available.
I need this to determine whether the 1 PPS hold-over accuracy is
sufficient to maintain the 1 PPS within +/- 1 ms of GPS time during a
loss of GPS lock of, say, 15 minutes.
I know that different manufacturers might handle the hold-over
differently - so I need some experience of others with Garmins.
The only information I can find about Garmins is that the 1 PPS holds
within the +/- 1 us specification for up to 4 seconds of invalid fix
conditions.
Cheers
Steve Olney
HawkRAO
http://hawkrao.joataman.net/pulsar/daily_obs/index.html
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