SoundTrap 202HF Digital Sound Recorder

SoundTrap 202HF Digital Sound Recorder
The SoundTrap 202HF is a compact self-contained underwater sound recorder
for ocean acoustic research. It offers a working frequency range of 20 Hz to 150
kHz, making it ideal for broadband bioacoustic work. It also features low selfnoise making it suitable for aquatic noise measurements.
The SoundTrap 202HF is capable of recording continuously for 12 days, or for 50
days on a 10 minute per hour duty cycle. Each instrument is supplied with a
traceable calibration certificate and features self-calibration checks for
confirmation of performance in the field.
Data offload and battery recharge are done via USB, and output files are in the
industry standard WAV format. A wet connector provides communication
options for GPS position logging, real time telemetry and tethered array
configurations.
Ancillary sensors are included for logging temperature and tri-axial acceleration.
The included software offers flexible deployment options for sample rate, gain
control, delayed start and duty cycle. Plus the included water proof IR remote
control makes for convenient in-the-field ad hoc measurements.
SoundTrap’s firmware is available under GPL open source license enabling users
to take advantage of the DSP processor for real time processing tasks such as real
time detection and dosimetry.
Key Features

150 kHz bandwidth (576 kHz maximum sample rate)

Industry leading self-calibration capability to ensure upmost confidence in measurements

12 days continuous record time (96 kHz sampling), or 52 days using 10 minute per hour duty cycle

Ancillary sensors for temperature and acceleration

Straightforward data offload and battery recharge via USB

Open software for custom tasks / system integration / telemetry

Factory sealed housing. No need to open – cannot be flooded!
Detailed Specifications
Bandwidth
Single channel spanning 20 Hz - 150 kHz ± 3dB
Self-noise
Less than 34dB re 1 μPa above 2 kHz
Gain
Two gain settings - Low noise and high dynamic range.
Maximum level before clipping of 186 dB re 1 μPa
Sample rates
576 kHz, 288 kHz, 144 kHz & 96 kHz
ADC
16-bit SAR
Calibration
Factory OCR calibration certificate
Self-calibration check
Pistonphone coupler available
Control
Waterproof IR remote control for manual record start/stop.
Ancillary sensors
Temperature - 0.1°C precision, 0.5°C uncalibrated accuracy
Acceleration - Tri-axial accelerometer, +/- 8g, Sampling up to 100 Hz
Optional pressure/depth sensor
Connectivity
Wet pluggable connector for connection to GPS or radio telemetry.
Maximum depth
500m (Extended depth version available on request)
Dimensions:
200mm L x 60mm D (excluding connector dummy)
Weight
Approx. 500g in air
Recording Endurance Table
Sample Rate
Duty Cycle
Endurance (days)
96 kHz
Continuous
12
10 minutes per hour
52
Continuous
8
10 minutes per hour
50
Continuous
4
10 minutes per hour
25
Continuous
2
10 minutes per hour
12
144 kHz
288 kHz
576 kHz
Noise Floor
40
dB re 1 uPa
35
30
25
20
1
10
frequency (kHz)
100

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