ashtech HDS800, Reference Manual

Page: 426 / 678

410
Set Command Library
Comments
• Stating that signal observations are consistent with the
corresponding navigation data means the following:
– GNSS time, receiver position and receiver clock offsets
are available and valid.
– L1CA pseudo-range for a given satellite is measured
and valid.
– The corresponding satellite navigation data are
available and valid.
– The L1CA pseudo-range and computed range are in
agreement with each other.
– Elevation and azimuth angles are available and valid.
If at least one of the above requirements is not met, then
signal observations are found to be not consistent with
navigation data.
• The $PASHS,SOM,NAV command will mask all signals
(all observables) corresponding to a given satellite, even if
some other pseudo-ranges (e.g. L2C) can be consistent
with the navigation data.
• The $PASHS,SOM,NAV command equally affects all
GNSS systems.
Examples
Setting NAV masks for both differential and raw data:
$PASHS,SOM,NAV,ON*7C
Enabling all signal observations to be output regardless of
whether they are consistent with navigation data or not (no
NAV mask):
$PASHS,SOM,NAV,OFF*32
Relevant Query
Command
$PASHQ,PAR
$PASHQ,SOM,NAV
See Also
$PASHS,SOM
$PASHS,SOM,SNR
$PASHS,SOM,CTT
$PASHS,SOM,WRN
Raw Data Masked by s2 Differential Data Masked by s1
MPC
DPC
ATM,RNX,SCN,0
All other messages