Spectra Precision ProMark 800 Reference Manual - Manual (Page 256)

244
Set Command Library
– 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
SOM,SNR: Signal-to-Noise Ratio Mask
Function This command is used to mask the signal observations that
do not meet the minimum signal-to-noise ratio you specify.
This means that only the observations meeting this
requirement will be output (all the others will be rejected).
This mask is enabled only after the “User-defined” option (9)
has been selected with the $PASHS,SOM command.