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Main ❯ Underwater acoustic modems ❯ Device specification: uWave USBL Modem
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uWave USBL Modem underwater acoustic modem Device specifications |
KEY FEATURES
- Extremely small size and weight
- Simultaneous data transmission & USBL navigation
- Reliable data transmission with 78 bit/s
- Operating range up to 30001,2 m
- Subscribers code division
- Propagation time measurement
- Reliable and noise-immune technology of digital broadband acoustic communication
- Low power consumption (Rx/Tx) 0.33/25 W
- Open & easy interfacing protocol
- Built-in depth/temperature sensor
- Patented monoblock design
DESCRIPTION
uWave USBL Modem - a device that combines the functions of transmitting data through a underwater acoustic channel and a navigation system on an ultra-short base.
Using uWAVE USBL Modems, the user can:
- transfer arbitrary user data between uWave USBL Modem, uWave Max and uWave modems in any combination with the simultaneous estimation of the horizontal angle of arrival;
- estimate the location of the uWave USBL Modem, uWave Max and uWave modems in command mode by slant range and horizontal angle of arrival;
- transmit up to 9 short code telecontrol user commands;
- request from remote modems uWave USBL Modem, uWave Max and uWave modems their depth, temperature and voltage;
- measure own depth, temperature, pitch and roll;
Devices from uWave family use a simple open NMEA-like configuration protocol, and the supplied open-source libraries uWaveLib (.NET) and uWave ALib (Arduino) allows for the fastest and easiest integration of devices into custom solutions.
TECHNICAL SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| DIMENSIONS (Ф х h) | 64 х 128 mm |
| WEIGHT (dry) | 0.44 kg |
| DEPTH RATING | 300 m |
| MAX. OPERATING RANGE1,2 | 3000 m |
| WORKING ANGLE (cone, from the horizontal) | +/- 30° |
| PAYLOAD DATA RATE | 78 bit/s |
| POWER CONSUMPTION Rx/Tx | 0.33/25 W |
| HORIZONTAL ANGLE OF ARRIVAL ESTIMATION ACCURACY (typ.) | 2° |
| SUPPLY VOLTAGE | 12 V |
| DATA LINES VOLTAGE | 0 .. 3.3 V |
| DATA LINES OUTPUT IMPEDANCE | 1 kOhm |
| FREQUENCY BAND | 10 .. 30 kHz |
| BIT ERROR RATE | 10-6 |
| SNR3 | -2 dB |
| MAX RELATIVE VELOCITY | +/- 1 m/s |
| RATED STARTUP TIME | 100 msec |
| WORKING TEMPERATURE RANGE | -5 .. 50 °C |
| INTERFACE4 | UART 9600 bit/s |
| INTERFACING PROTOCOL | NMEA0183 PUWV |
| CABLE LENGTH4 | 1 m |
| SUBSCRIBERS CODE DIVISION | 20 code channels |
| COMMAND MODE | 16 predefined messages (9 for user applications) |
| PACKET MODE | 254 subscribers with an acknowledgement; broadcasting; packet size up to 64 bytes |
| TX BUFFER SIZE | 127 bytes |
| PROPAGATION TIME MEASUREMENT RESOLUTION | 0.0001 sec |
1 A parameter that determines the maximum range at which a signal can be received based on the electro-acoustic parameters of the transmitter and receiver, spatial decrease in the intensity of sound energy, attenuation in the medium and acoustic noise level.
2 While working with uWave USBL Modem or uWave Max. Max. operating range with uWave modems is 1000 m.
3 This value is obtained without the presence of the multipath effect.
4 Can be changed by the special request.