Som,wrn: channel warnings mask, Function, Command format – Spectra Precision ProMark 800 Reference Manual User Manual

Page 258

Advertising
background image

246

Set Command Library

$PASHS,SOMM,WRN

SOM,WRN: Channel Warnings Mask

Function

This command is used to mask the signal observations for
those signals flagged with channel warnings (MPC warning
bits are counted from 1 to 8). This means that only the
observations from non-flagged signals 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.

Command Format

Syntax

$PASHS,SOM,WRN,s1[,s2][*cc]

Parameters

Comments

• A signal is considered as flagged in at least one of the

following cases:

– Carrier phase tracking is not stable (Bit 3 of MPC/MCA

warning is set).

– Pseudo-range data quality is bad (Bit 5 of MPC/MCA

warning is set).

– Polarity is not resolved (MPC/MCA Phase Tracking

Polarity flag is set to 0).

• The $PASHS,SOM,WRN command will mask only some

particular signal data (e.g. L1CA or L2P) corresponding to
a given satellite. If at the same time the L1CA data are
disabled, then ALL the satellite observations, and not only
those masked, will be rejected.

Parameter

Description

Range Default

s1

Differential data mask

ON, OFF ON

s2

Raw data mask. If s2 is omitted, then the
receiver will assume s2=s1

ON, OFF OFF

*cc

Optional checksum

*00-*FF

Raw Data Masked by s2

Differential Data Masked by s1

MPC
DPC
ATM,MES
ATM,RNX,SCN,0

All other messages

Advertising