The system is designed to be deployed as a buoy or on the sea floor. It features a flexible, modular design that can record between 8 and 96 hydrophone channels.
The recorder is made up of 1 to 6 recording modules, depending on the number of channels in the hydrophone array, controlled by the system controller. Each recording module records up to 16 channels. Each channel includes a 24-bit A/D converter and supports sample rates up to 125 kHz. Each module includes data storage for up to 5 days of continuous recording at the highest sample rate.
The system was designed with low power components to keep power consumption to a minimum. Power supply options include: alkaline D-cells, rechargeable lithium-ion batteries, rechargeable lead-acid batteries, or shore power supplied over a sub-sea cable.
| Analog | |
|---|---|
| Number of Channels | 8 to 96 |
| Sample rates supported per channel | 1953 to 125,000 Hz |
| A/D Converter | 24 bit delta-sigma |
| Hydrophones | High Tech, Inc. Voltage or Current Mode |
| Gain stage supported | 10 dB, 22 dB, 30 dB, 40 dB |
| Gain accuracy | 1% (0.1 dB) |
| Maximum input signal | 3.2768 Volts |
| Equivalent noise input | 32.768 µV @ 125 kHz |
| Anti-alias filter | -3 dB bandwidth, sample rate *0.4096 |
| Instantaneous dynamic range | -100 dB |
| THD | -90 dB |
| Clock Source | Internal clock on system controller (optional: time standard, GPS) |
| Digital | |
|---|---|
| Solid State Disk Storage | Up to 2 TB per 8 Channels |
| Communications | Gigabit Ethernet, RS-232 (Optional RF Modem or Satellite Modem |
| Data Rates Supported | 4.5 MB/s per 8 Channel Module |
| Channels per Recording Module | 8 or 16 (Supports up to 6 modules) |
| Data Resolution | 24 Bits (LSB = 0.488 µV) |
| CPU Processor | 1.6 GHz Intel Atom |
| Power | |
|---|---|
| Batter or Cabled to Shore Source | 24 VDC |
| Battery Types Supported | Alkaline, Rechargeable Lead-Acid, Rechargeable Lithium |
| Shore Source Requirements | 24 VDC @ 10 A (Maximum for using 96 Channels) |
| Power Consumption | 1.8 to 3.8 Watts per Channel depending on configuration |
| Mechanical | |
|---|---|
| Operating Temperature |
Standard: 0 ˚C to 70 ˚C
Extended: -40 ˚C to 80 ˚C |
| Storage Temperature |
Standard: -45 ˚C to 80 ˚C
Extended: -50 ˚C to 85 ˚C |
| Size |
Electronics Package: 60" (152 cm) long
x 12" (30.5 cm) diameter Battery Package: 30" (84 cm) long x 16" (41 cm) diameter |
| Weight |
Electronics Package: 107 lbs (49 kg)
Battery Package: 190 lbs (86 kg) |
| Maximum Operating Depth | 6,000 m (Recorder with Hydrophones) |
