User's Manual

Content
1 Product Description............................................................................................................................................... 3
2 Technical Specifications........................................................................................................................................4
3 Interface of the Radio........................................................................................................................................... 5
3.1 Pin Definition............................................................................................................................................. 6
3.2 4FSK Modem............................................................................................................................................. 7
4 Application Instruction..........................................................................................................................................7
4.1 Hardware Installation................................................................................................................................. 8
4.2 Operation Instruction..................................................................................................................................9
5 Maintenance and Repair...................................................................................................................................... 17
5.1 Dimensions............................................................................................................................................... 17
5.2 Removing & Replacing the Upper Cover................................................................................................ 18
5.3 Removing & Replacing the Power Board & Modem Board & Shield Plate...........................................18
5.4 Removing & Replacing the Main Board..................................................................................................19
5.5 Repairable/Replaceable Parts List............................................................................................................20
6 Accessories Available......................................................................................................................................... 21
Appendix:............................................................................................................................................................... 22