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| Table Of Contents |
|
1 | INTRODUCTION | . 4 | |
2 | CONNECTIONS & INDICATIONS | . 5 | |
| 2.1 | RS232 Connector | . 5 |
| 2.2 | Power Connector | . 6 |
| 2.3 | RF Connector | . 6 |
| 2.4 | Front Panel Indications | . 6 |
3 | MODEM OPERATION | . 7 | |
| 3.1 | Introduction | . 7 |
| 3.2 | Handshaking Operation During Transmit and Receive | . 7 |
| 3.3 | Data Transfer Modes | . 8 |
| 3.4 | RS232 Data Handling | . 8 |
| 3.5 | . 8 | |
4 | LIST OF COMMANDS: | 10 | |
| 4.1 | Command Mode | 10 |
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| 4.1.1 Activation of the Command Mode: | 10 |
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| 4.1.2 Ending of Command Mode | 11 |
| 4.2 | Command Syntax | 11 |
| 4.3 | Baud Rate (AT B0) | 12 |
| 4.4 | Parity (ATB1) | 12 |
| 4.5 | Format Mode (AT F) | 13 |
| 4.6 | Engineering Test Modes (AT In) | 14 |
| 4.7 | Software Version Information (AT I9) | 15 |
| 4.8 | Command Mode Guard Time (AT S154) | 15 |
| 4.9 | Centre Radio Frequency (AT S155) | 15 |
| 4.10 | Received Signal Strength Indication (RSSI) (AT S156) | 16 |
| 4.11 | Radio Channel (AT S157) | 17 |
| 4.12 | Data Quality (AT S158) | 17 |
| 4.13 | Squelch (AT S159) | 18 |
| 4.14 | Transmission Power (AT S160) | 19 |
| 4.15 | Channel Step Size (AT S161) | 20 |
| 4.16 | Test Message Period (AT S162) | 20 |
| 4.17 | 21 | |
| 4.18 | Preamble Period (AT S165) | 21 |
| 4.19 | Frame Synch Tolerance (AT S166) | 22 |
| 4.20 | Invert Symbol (AT S167) | 22 |
| 4.21 | Squelch Delay (AT S168) | 23 |
| 4.22 | Enable/Disable Receive Output Data (AT &D) | 23 |
| 4.23 | Enable/Disable Input Echo Data (AT &E) | 23 |
| 4.24 | Radio Frequency (AT &F) | 24 |
| 4.25 | Save parameters (AT &W) | 24 |
| 4.26 | Restore defaults (AT &Y8) | 24 |
| 4.27 | Display parameters (ATT?) | 25 |
| 4.28 | Code Loader (AT S2000) | 26 |
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