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Main ❯ Underwater acoustic modems ❯ RedLine: Device specification
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RedLine - Underwater acoustic modem Device specification |
KEY FEATURES
- Communication range up to 80001 m
- Reliable data transmission at 80 bit/s
- Extremely small size and weight
- Can be used in wireless underwater sensor networks
- Code division multiple access
- Highly reliable digital underwater acoustic communication
- Low power consumption (Rx/Tx) 0.33/10 W
- Open communication protocol
- Patented* monoblock design
DESCRIPTION
RedLine - a family of wireless underwater digital communication modems that implement a transparent transmission channel.
RedLine modems offer an unrivaled balance of power consumption, dimensions, reliability and transmission range. The monoblock housing shared with RedNode devices allows the use of standard solutions for integration.
Small size, low power consumption and ease of use make RedLine an ideal solution for small-sized ROVs/AUVs as well as for larger devices.
The code division multiple access function enables the most efficient data transmission for multiple devices.
* Patent RU2659299C1.
TECHNICAL SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| DIMENSIONS (Ø x h) | 64 x 62 mm |
| WEIGHT (dry) | 0.36 kg |
| MAXIMUM DEPTH | 400 m |
| MAXIMUM ACOUSTIC COMMUNICATION RANGE1 | 8000 m |
| MAXIMUM ACOUSTIC SOURCE LEVEL | 170 dB re 1 μPa @ 1 m |
| DATA RATE | 80 bit/s |
| POWER CONSUMPTION Rx/Tx | 0.33/10 W |
| SUPPLY VOLTAGE | 12 V |
| DATA LINE VOLTAGE | 0 .. 3.3 V |
| BANDWIDTH | 5 .. 15 kHz |
| BIT ERROR RATE | 10-6 |
| SNR2 | -6 dB |
| MAXIMUM RELATIVE VELOCITY | +/- 3 m/s |
| STARTUP TIME | 100 ms |
| OPERATING TEMPERATURE RANGE | -5 .. 50 °C |
| INTERFACE3 | UART 9600 bit/s |
| COMMUNICATION PROTOCOL | NMEA 0183 PTNT |
| CABLE LENGTH3 | 0.5 m |
| MINIMUM PACKET SIZE FOR TRANSMISSION | 7 bytes |
| TRANSMITTER BUFFER SIZE | 256 bytes |
| MULTIPLE ACCESS SCHEME | 20 code channels |
1 A parameter that determines the maximum range at which a signal can be received, based on electro-acoustic parameters of the transmitter and receiver, spatial decrease in the intensity of sound energy, attenuation in the medium and the acoustic noise level.
2 This value was obtained in a static laboratory experiment without accounting for the effect of multipath propagation.
3 The value can be changed on request.