Acoustic Receiver |
Centre frequency 130 kHz, bandwidth 40 kHz |
Adjustable gain to set sensitivity level |
4th order band pass passive filter for noise elimination |
Click Recorder |
Time resolution of click logging, 1 microsecond |
Storage capacity, 8Mbytes, or approximately 800,000 individual clicks |
Click amplitude level, more than 8 distinct levels over approximately 30dB range for post-deployment analysis |
Processing algorithms to minimise effects of transient noise and high frequency boat noise |
Detection of on-axis porpoise click from close range to >200m distance, based on 150dB re 1.Pa @ 1m |
On/Off Control |
Saltwater switch or manually by using software supplied |
Dimensions |
240mm long x 88mm diameter |
Weight |
Approx 1kg in air; 300g in water depending on battery configuration |
Attachment |
Two fixing holes |
Maximum Operating Depth |
100m |
Battery Type and Life |
NiMh rechargeable: 2 weeks, in water |
Battery Charging Time |
2 hrs fast charge, separate charger using underwater connector |
Communications |
USB 1.1 |
Software |
AQUAtalk software to upload data and deploy logger, ClickView software to view logged files |
