Technical specifications of NXDN™
| Access Method | FDMA | |
|---|---|---|
| Modulation | 4-level FSK | |
| Vocoder | AMBE+2™ | |
| Channel Spacing | 6.25 kHz | 12.5 kHz |
| Transmission Rate | 4800 bps | 9600bps |
| Codec Rate | 3600bps | 7200bps |
| Conventional | Yes | |
| Trunking operation | Yes Type-C and Type-D |
Yes Type-C |
| Digital Scrambling | Yes (15-bit/32,000 keys) | |
| Encryption | Yes (AES/DES) | |
The NXDN™ hardware platform utilizes the same basic structure as analog FM radio designs with the addition of the components/circuits for digital capability. It was the specific intention to maintain as much of current analog FM technology in the hardware design to:
- Reduce the complexity of development
- Reduce the cost of development and the resulting products
- Maintain ease in manufacture
- Reduce the probability of parts obsolescence by utilizing as many common devices as possible
- Maintain commonality in maintenance and repair
- Reduce the need for specialized testing equipment