The system SOM is designed for control of underwater objects through a hydroacoustic channel by means of transmission and reception of commands among selected combinations on fixed frequencies.
The underwater control is carried out by the command unit through receivers positioned in/on the underwater objects.
The system for control SOM consists of two main units:
1. Command and control unit which contains:
- an electronic unit;
- a hydroacoustic antenna (transmitter);
- a power supply.
2. Receiver mounted in the controlled underwater objects, which contains:
- a hydroacoustic antenna (receiver);
- an amplifier /decoder.
Depending on the remote control range, the control system SOM is developed in two modifications: SOM-L for operating range of up to 2,000 m, and SOM-M for operating range of up to 1,000 m.
Its designed to work with PDM-120, PDM-250, MER 1000, PDM-1B, PDM-2B and PDM-1C.
| Technical characteristics of “SOM-L” | |
|---|---|
| Remote control range (distance), m | up to 1000 |
| Remote control range (depth), m | up to 50 |
| Transmission frequency, kHz | < 20 |
| Time for transmission of a single command, s | up to 15 |
| Probability for receiving a wrong code | < 0.001 |
| Operating temperature, °C | from -4° to +35° |
| Technical characteristics of “SOM-M” | |
| Remote control range (distance), m | up to 1000 |
| Remote control range (depth), m | up to 30 |
| Transmission frequency, kHz | > 20 |
| Time for transmission of a single command, s | up to 15 |
| Probability for receiving a wrong code | < 0.001 |
| Operating temperature, °C | from -4° to +35° |
