Hemisphere GPS MBX-4, User Manual

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MBX-4 User Guide
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Both receivers will return this NMEA response when queried for its
performance status. The xx field is the signal strength in dBmV/m, yy is
the signal to noise ratio in dB, fff.f is the current frequency in kHz, and
ddd is the corresponding MSK bit rate in bps. The *CS termination is
the checksum that terminates the response message.
Proprietary Queries
The following subsections describe the selection of valid Hemisphere
GPS proprietary NMEA-0183 queries, and their responses.
Receiver Help Query ($PCSI,0) - This command queries the MBX-4
receiver for a list of valid proprietary $PCSI commands:
$PCSI,0<CR><LF>
MBX-4 Response:
$PCSI,0
$PCSI,ACK,0
$PCSI,P012-0,010
$PCSI,0 ->HELP Msg
$PCSI,1 ->Reserved
$PCSI,2 ->Reserved
$PCSI,3 ->Reserved
$PCSI,4 ->Wipe Search
$PCSI,5 ->GPS<>SBX3a Port Rate,<P4>
$PCSI,6 ->XBX3 Port Rates,<P1>,<P2>,<P3>,<P4>
$PCSI,7 ->XBX3 Mode
Note: The $PCSI,5 command is reserved for factory
configuration of the MBX-4 and its internal components, and
should not be used in the field.