NavCom Sapphire Rev.J - Manual (Page 357)

Sapphire Technical Reference Manual Rev. J
357
2.97 RTKSTATUS1B (Version 1; v1.0.0.4) (Binary)
SF-3050 Sapphire SF-3040
The RTKSTATUS1B output stream contains a variety of information about the RTK navigation
process. The data items included in this message are listed in Table 186.
This message can vary in size based on the data in the field marked “bit mask of GNSS satellite
constellation usage”. This bit mask denotes the data that follows it in the message. This can be
no data at all, or up to 36 additional bytes. Adding the 9 byte binary header to the data
described here, this is how the message size works out for each of the combinations of bits in
this field:
Data Bits in Constellation Mask Message Size
None 38 bytes
One of GPS, GLONASS or SBAS 50 bytes
Two of GPS, GLONASS or SBAS 62 bytes
All 74 bytes
Table 186: RTKSTATUS1B binary message
Data Item (38 – 74 Bytes) Data Type
Navigation solution status (enum) cf. PVT1B U08
Navigation solution mode (cf. PVT1B) U08
Reference station ID (0 to 1023) U16
Number of satellites tracked at base station U08
Number of satellites tracked at rover U08
Number of used L1 carrier phase measurements U08
Number of used L2 carrier phase measurements U08
RTK search flag (enum) U16
RTK search duration (seconds) U32
Bit mask of GNSS satellite constellation usage U08
GPS L1 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
GPS L2 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
GPS WL fixed ambiguities in KF(optional, depends on the
constellation set)
U32
GLONASS L1 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
GLONASS L2 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
GLONASS WL fixed ambiguities in KF (optional, depends on
the constellation set)
U32
SBAS L1 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
SBAS L5 fixed ambiguities in KF (optional, depends on the
constellation set)
U32
Table continued on next page…