Trimble Outdoors 58052-00 Benutzerhandbuch

4      OPERATING MODES

5 4      Copernicus GPS Receiver

Table 4.1

Copernicus GPS Receiver Operating Modes

The RUN mode is the continuous tracking or the normal mode. 

The Copernicus GPS Receiver provides a Standby Mode in which the module's RAM 
memory is kept alive and the real-time clock is running while the rest of the receiver 
is turned off. RAM memory is used to store the GPS almanac, ephemeris, and last 
position.

Using this information, together with the time information provided by the real-time 
clock, the receiver normally provides faster startup times. The type of start-up after 
Standby Mode depends on the state of the receiver prior to entering Standby Mode 
and on the length of time the receiver spent in the Standby Mode. 

If the receiver has almanac, ephemeris, and position information before entering 
Standby Mode, and the time spent in Standby Mode is less than two hours, the 
receiver will typically perform a hot start. 

If the receiver has all of the information listed above, but the time spent in Standby 
Mode is more than two hours, the receiver will typically perform a warm start. 

The GPS almanac, ephemeris and recent position are automatically stored in non-
volatile Flash memory. Even without time, the receiver can use the information stored 
in Flash memory to shorten the start-up time. In all cases, the receiver will use all of 
the available information to do the fastest start-up possible.

Monitor Mode is the operating mode for upgrading the firmware stored in the Flash 
memory. See Chapter 11 for the firmware upgrade procedure.

Run Mode

Continuous tracking or 
normal mode

Standby Mode

Backup power or low 
power mode

Monitor Mode

Flash upgrading mode