Guralp Systems CMG-DM16R8 Operating instructions
- Category
- GPS receiver modules
- Type
- Operating instructions
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Firmware revision
System
type
System ID & serial number
Internal clock
Sample rates
DSP filter version
Selected tap, sample
rate and channel
Data port baud rate GPS port baud rate
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3-D position requires minimum
of 3 SV’s (Satellites in View)
4 shown here
Position from GPS
Satellite in View number,
elevation, bearing and
either ‘obscured’ or
Signal/Noise ratio of
signal (30 to 50dB normal)
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Synchronisation
process commenced
Internal clock synchronised to GPS
Notice time shift of 2 seconds from
17:10:30 to 17:10:32 in this example
Synchronisation control
parameters.(zero ‘drift’ in
the first instance during
coarse adjustment. ‘pwm’ is
a saved parameter)
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Offset or phase
error between
digitiser internal
1Hz and GPS
1pps.Closes in to
less than 5s
Drift or frequency
error between
digitiser internal
clock and GPS
PWM – Pulse
Width Modulation
control signal
applied to a DtoA
to control internal
clock/GPS error
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Guralp Systems CMG-DM16R8 Operating instructions
- Category
- GPS receiver modules
- Type
- Operating instructions
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