2.2.11.  SD Card 
 
The APS-3 comes  pre-installed  with a 2GB SD Card for internal data  logging.  
When using  with  APS-3  for  data  logging, it  will record data  in  SBF  (Septentrio  Binary 
Format), which can be converted into RINEX format for Post Processing. 
  
Handle the SD Card with care. When not in use, leave it inside the APS-3 or place it 
in SD Card Holder for transportation or storage. 
 
A 2GB SD Card has capacity of ~8.8 days at 1Hz data rate. Memory is used at 
9.4 MB/hr when logging default data at 1Hz.  
 
File Information: 
Format: Septentrio Binary Format (SBF) 
Size: Up to 72kB per second 
 
Turn OFF the APS-3 to install or remove SD card.  Data loss and corruption may occur 
if SD Card is removed while APS-3 is ON. 
 
2.2.11.1.  Removing SD Card 
 
  Unlock  SIM  &  SD  Card  compartment  on  the  back  of  the 
APS-3 
  Open SIM & SD Card compartment 
  Push SD Card to release locking mechanism 
  Pull SD Card out of the slot 
 
2.2.11.2.  Installing SD Card 
 
  Unlock  SIM  &  SD  Card  compartment  on  the  back  of  the 
APS-3 
  Open SIM & SD Card compartment 
  Insert SD Card using the guide 
  Push SD Card into the slot until it locks into place