GT-1612-MTBD
GPS&Beidou Receiver Module
www.gotop-zzu.com
Page 10 of 35
Revision: V2.0.1-January 2015
2.4. Operating Modes
The table below briefly illustrates the relationship among different operating modes of GT-1612-MTBD module.
Table 3: Module States Switch
2.4.1. Full on Mode
Full on mode includes tracking mode and acquisition mode. Acquisition mode is defined as the module starts to
search satellites, determine visible satellites and coarse carrier frequency as well as code phase of satellite signals.
When the acquisition is completed, it switches to tracking mode automatically. Tracking mode is defined as the
module keeps tracking satellites and demodulates the navigation data from the specific satellites.
When the combination of VCC and VBAT is valid, the module will enter into full on mode automatically and
follow the default configurations as below. You can refer to
chapter 2.3
about internal power construction to have a
good comprehension. You can also use PMTK commands to change the configurations to satisfy your requirements.
Current
Mode
Next Mode
Backup
Standby
Full on
Periodic
AlwaysLocate
FLP
Backup
N/A
N/A
Refer to
chapter 2.4.3
N/A
N/A
N/A
Standby
N/A
N/A
Send any data
via UART
N/A
N/A
N/A
Full on
Refer to
chapter 2.4.3
PMTK161
N/A
PMTK225
PMTK225
PMTK262
Periodic
N/A
N/A
Refer to
chapter 2.4.4
N/A
N/A
N/A
Always
Locate
N/A
N/A
Refer to
chapter 2.4.5
N/A
N/A
N/A
FLP
N/A
N/A
Refer to
chapter 2.4.6
N/A
N/A
N/A
