Jackson Labs RSR GNSS Transcoder, Руководство пользователя

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RSR GNSS Transcoder™ User Manual
4.10.30 GPS:JAMlevel?
Externally-connected uBlox GNSS receivers will detect, and flag jamming interference with levels
ranging from 0 (no jamming) to 255 (strong jamming) and indicate the jamming level with this
command. This command is only supported with an external uBlox GNSS receiver.
4.10.31 GPS:FWver?
This command returns the firmware version used inside the externally-connected GNSS receiver
itself. This command is supported with both an external uBlox GNSS receiver and a Rockwell
Microgram or RSR Puck.
4.10.32 GPS:DAGR:MODE
This command sets the DAGR pass-through mode. An external DAGR DB-15 serial and 1PPS
interface may be connected to the externally connected MicroGRAM or RSR Puck SAASM receiver
COM-2 port as long as these have the custom JLT NMEA timing firmware loaded by the Rockwell
Collins factory. When DAGR pass-through mode is ON,external DAGR PVT data including the
1PPS reference is passed through the internal MicroGRAM receiver COM-2 port and provided in
place of locally computed PVT data from the internal MicroGRAM. The GPS:DAGR:PVTstate?
query response described in Section
4.10.35 indicates if the MicroGRAM has successfully
transitioned to DAGR pass-through PVT mode.
When DAGR pass-through mode is ON, the internal MicroGRAM can also accept Hot-Start data
from the external DAGR allowing downloading Almanac and Ephemeris as well as PVT data to the
MicroGRAM. Once the MicroGRAM has successfully transitioned to DAGR PVT mode, the hot
start is typically initiated from the external DAGR. The GPS:DAGR:XFERstate query response
described in Section
4.10.34 indicates the success or failure of an attempted hot start.
The format of this command is:
GPS:DAGR:MODE <ON | OFF>
This command only works with an external MicroGRAM or RSR Puck.
4.10.33 GPS:DAGR:MODE?
This query displays the current DAGR pass-through mode. This command does not indicate the
success or failure of entering the DAGR pass-through mode, but only the currently selected mode
from the GPS:DAGR:MODE command. Use the GPS:DAGR:PVTstate? query to determine the
success or failure of entering DAGR pass-through mode.
This command only works with an external Rockwell Collins MicroGRAM or RSR Puck with
custom JLT Timing firmware loaded at the factory.