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