Table of Contents 
1.  Introduction ............................................................................................... 5 
1.1.  Foreword ..................................................................................................................... 5 
1.2.  User Notice .................................................................................................................. 5 
1.2.1.  FCC ...................................................................................................................... 5 
1.2.2.  CE Mark .............................................................................................................. 5 
1.2.3.  Warranty ............................................................................................................ 6 
1.3.  Technical Support ........................................................................................................ 7 
2.  APS-3(G) Overview ..................................................................................... 8 
2.1.  APS-3 Product Family Overview ................................................................................... 8 
2.2.  APS-3(G) Key Features ................................................................................................. 8 
2.2.1.  Navigation Accuracy ........................................................................................... 9 
2.2.2.  APS-3 Ease of Use ............................................................................................... 9 
2.2.3.  Shipping Case Contents .................................................................................... 11 
2.2.4.  Using the APS-3 ................................................................................................ 12 
2.2.5.  APS-3 Front Panel ............................................................................................. 12 
2.2.6.  Front Panel Description .................................................................................... 12 
2.2.7.  Power Button ................................................................................................... 13 
2.2.8.  Ports ................................................................................................................. 13 
2.2.9.  Power Input ...................................................................................................... 14 
2.2.10.  SIM Card ........................................................................................................... 15 
2.2.10.1. Purchasing a SIM Card w/ plan ......................................................... 15 
2.2.10.2. Installing SIM Card ............................................................................ 16 
2.2.11.  SD Card ............................................................................................................. 17 
2.2.11.1. Removing SD Card ............................................................................. 17 
2.2.11.2. Installing SD Card .............................................................................. 17 
2.2.11.3. Formatting SD Card ........................................................................... 18 
2.2.11.4. Compatible SD Cards ......................................................................... 18 
3.  APS-3 Device & Specifications .................................................................. 19 
3.1.  Internal UHF Radio ..................................................................................................... 19 
3.2.  GSM Modem .............................................................................................................. 20 
3.2.1.  Communication Protocol .................................................................................. 20 
3.3.  Battery & Charger ...................................................................................................... 21 
3.3.1.  Battery Charger ................................................................................................ 21 
3.3.2.  Charging Battery ............................................................................................... 21 
3.3.3.  APS-3 Battery Installation and Replacement .................................................... 22 
3.4.  GNSS Antenna Offsets ............................................................................................... 23