REFERENCE MANUAL - FTP Directory Listing - Trimble

TRIMBLE STANDARD INTERFACE PROTOCOL (TSIP)
A
Byte Offset Item Type Value Definition
18 Receiver Health UINT8 Bit-masks Bit 0 - if set, antenna line fault
is detected.
Bit 1 - if set, antenna line is
shorted; if not set, antenna line
is open. This bit is valid only if
Bit 0 is set.
Bit 2 - if set, the current fix is 2-
D; if not set, the fix is 3-D. This
bit is valid only if Receiver
Status Code byte is 0x00.
Bit 3 - if set, the current fix is
SBAS-corrected. This bit is valid
only if Receiver Status Code
byte is 0x00.
Bit 4 - if set, BBRAM was not
available at power-up.
Bit 5 - if set, Real-Time Clock
was not available at power-up.
Bit 6 - if set, the almanac stored
in the receiver is not complete
and current.
Bit 7 - if set, the measurement
clock bias is unknown.
19 UINT 8 0x00 Reserved for future use
Channel Tracking information for Channels 0...11 (N) NOTE2
20+N*12 Satellite ID UINT8 1 to 32, or
120 to 138
Satellite PRN (GPS or SBAS).
21+N*12 Signal Strength UINT8 0 to 55 Signal strength (in dB-Hz).
22+N*12 Acquisition Status UINT16 Bit-masks Bit 0 - if set, Doppler is valid.
Bit 1 - if set, code phase is valid.
Bit 2 - if set, time ambiguity is
resolved.
Bit 3 - if set, measurement is
valid.
Other bits are reserved.
24+N*12 Pseudo Range UINT32 any Pseudo range (in cm).
28+N*12 Range Rate INT32 any Range rate (in millimeters/sec).
Note – This value is valid only if Bit 7 of the Receiver Health byte is not set. To
compute the complete GPS time of measurement to 1 ns resolution, use the following
formula:
GPS Time of Measurement (nanosec) = GPS Millisec*1000000 + Fractional GPS
Nanosec
Note – The channel tracking block (12 bytes in length) is repeated for all 12 channels.
Copernicus GPS Receiver 175