LTE-A  Module  Series 
   EP06  Series  Hardware  Design 
 
EP06_Series_Hardware_Design                                                               31 / 56 
 
 
 
 
 
1.  Tracking sensitivity: the minimum GNSS signal power at which the module can maintain lock (keep 
positioning for at least 3 minutes continuously).   
2.  Reacquisition sensitivity: the minimum GNSS signal power required for the module to maintain lock 
within 3 minutes after loss of lock. 
3.  Cold  start  sensitivity:  the  minimum  GNSS  signal  power  at  which  the  module  can  fix  position 
successfully within 3 minutes after executing cold start command. 
 
4.3. Layout Guidelines 
 
The following layout guidelines should be taken into account in customers’ design. 
 
  Maximize the distance among GNSS antenna, main antenna and Rx-diversity antenna.   
  Digital circuits such as (U)SIM card, USB interface, camera module, display connector and SD card 
should be kept away from the antennas. 
  Use ground vias  around the  GNSS trace and  sensitive analog signal  traces to  provide coplanar 
isolation and protection.