Model 865-A Deep Sea Acoustic Release/Transponder M-855-009
Benthos, Inc.
8
3.0 SPECIFICATIONS
3.1 Electrical
3.1.1 Power Source
3.1.1.1 Standard Battery Pack
18 alkaline 'D' cells to provide two strings at a nominal 13.5 volts (Benthos P/N 865-SB-13).
Capacity: 22 Amp-hours (de-rated for cold temperature use and two year deployment time)
3.1.2 Operating Life
3.1.2.1 Standard Battery Pack
Release after 2 years and 250,000 transponds.
3.1.3 Acoustic Output
Greater than 192 dB re 1 micropascal at 1 meter from 9.0 to 16.0 kHz.
Greater than 185 dB from 7.5 to 8.5 kHz.
3.1.4 Receive Frequency
The receiver frequency is factory set to any one frequency between 7.0 kHz and 15.0 kHz in 500 Hz
increments (12.5 Khz is reserved and not used as a standard receive frequency). The receiver
bandwidth is ± 125 Hz.
All of the above frequencies are transmitted as standard by the DS-7000 deck unit.
3.1.5 Transmit Frequency
User selectable 7.5 to 17.0 kHz in 250 Hz increments.
3.1.6 Transmit Pulse Width
10 ms ±1 ms.
3.1.7 Command Channels
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