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RedPhone-D Diver station of the wireless voice communication system Device specification |
FEATURES
- Compatibility with most similar systems (OTS, Oceanreef, etc.)
- Built-in function for determining the diver’s location1
- Acoustic communication range up to 10002 m
- Battery life up to 80 hours in receiving mode
- Automatic power-on in water
- Built-in voice activity detector
- Strong, durable plastic housing
DESCRIPTION
The RedPhone-D wireless diver telephone communication station provides voice messaging between divers and/or from a diver to a surface station. The device supports standard frequency bands and is compatible with most similar systems. The built-in pinger function of the RWLT navigation system allows recording the geographic position of the diver upon completion of a voice transmission. RedButton, which contains no corroding elements, is used as a push-to-talk (PTT) button.
TECHNICAL SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| DIMENSIONS3 (L x W x H) | 106 x 95 x 55 mm |
| WEIGHT4 (dry) | 0.6 kg |
| MAXIMUM IMMERSION DEPTH | 100 m |
| MAXIMUM ACOUSTIC COMMUNICATION RANGE2 | 1000 m |
| MAXIMUM ACOUSTIC SOURCE LEVEL | 150 dB re 1 μPa @ 1 m |
| VOICE BANDWIDTH5 | 300 .. 4300 Hz |
| NUMBER OF SUPPORTED CHANNELS | 8 |
| MAXIMUM BATTERY LIFE (RX MODE)6 | up to 80 hours |
| MAXIMUM BATTERY LIFE (MIXED MODE, 20%)6,7 | up to 5 hours |
| MAXIMUM BATTERY LIFE (MIXED MODE, 50%)6,8 | up to 2.5 hours |
| OPERATING TEMPERATURE RANGE | -10 .. 50 °C |
| BUILT-IN POWER SUPPLY | 28 watt-hours, LiFePO4, up to 3000 charge-discharge cycles |
| CHANNEL SWITCHING | In the surface position, using a USB radio dongle |
| HOUSING MATERIAL | Polyurethane |
| CABLE INSULATION MATERIAL | Polyurethane |
| NAVIGATION SIGNAL CARRIER FREQUENCY | 20050 Hz |
| NAVIGATION SIGNAL MODULATION TYPE | BPSK |
| NAVIGATION SIGNAL DURATION | 200 ms |
CHANNELS AND FREQUENCY BANDS
| CHANNEL NUMBER | CARRIER FREQUENCY, Hz | SIDEBAND | BANDWIDTH, Hz |
|---|---|---|---|
| 1 | 32768 | Lower | 28468 .. 32468 |
| 2 | 32768 | Upper | 33068 .. 37068 |
| 3 | 31250 | Lower | 26950 .. 30950 |
| 4 | 31250 | Upper | 31550 .. 35550 |
| 5 | 28500 | Lower | 24200 .. 28200 |
| 6 | 28500 | Upper | 28800 .. 32800 |
| 7 | 25000 | Lower | 20700 .. 24700 |
| 8 | 25000 | Upper | 25300 .. 29300 |
1 The function is provided by the buoys of the RWLT navigation system.
2 A parameter that determines the maximum range at which signal reception is possible, based on the electro-acoustic parameters of the transmitter and receiver, the spatial decrease in the intensity of sound energy, attenuation in the medium and the acoustic noise level.
3 Including the transducer.
4 With a battery, a PTT button and a mask connector; depending on the connector, the value may differ by the weight of the connector.
5 The actual range of reproduced frequencies depends on the characteristics of the headset used.
6 With new, fully charged batteries with a capacity of 3000 mA*h or more, at an ambient temperature of 20 °C.
7 In the mode of 2 minutes of transmission and 8 minutes of reception.
8 In the mode of 5 minutes of transmission and 5 minutes of reception.