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Copernicus GPS Receiver     1 2 3

TRIMBLE STANDARD INTERFACE PROTOCOL (TSIP)     A

If you are not supplying the receiver with battery power when main power is off, you 
can still “warm-start” the receiver by sending the following sequence of commands 
after the receiver has completed its internal initialization and has sent Packet 82. 

Hot 

start times can be achieved using packet 0x38-06 to upload the ephemeris. Only time 
and position are necessary for the hot start since the almanac and ephemeris are 
stored in flash. Position is also stored in flash which improves first fix accuracy.

Table A.3

Initialization Packets to Speed Start-up

The following table lists the messages output by the receiver at power-up. After 
completing its self-diagnostics, the receiver automatically outputs a series of packets 
which indicate the initial operating condition of the receiver. Messages are output as 
listed in the table below. After Packet 82 is output, the sequence is complete and the 
receiver is ready to accept commands.

Table A.4

Packets Output at Power-up

Input Byte

Description

0x2E

Initial Time

0x38

Almanac (for each SV)

0x38

Ephemeris

0x38

Ionosphere Page

0x38

UTC Corrections

0x38

Almanac Health

0x2B

Initial Position

Output ID

Description

Notes

0x45

software version

--

0x46

receiver health

--

0x4B

machine code/status

--

As chosen, default: 0x84, 
0x56

position/velocity output

As chosen, see 

0x41

GPS time

0x82

SBAS fix mode

See command 
0xBB to 
enable/disable 
SBAS