Model 865-A Deep Sea Acoustic Release/Transponder
M-855-009
Benthos, Inc.
9
Eight standard channels (A,B,C,D,E,F,G or H) are available from the deck unit which, in combination
with the receive frequencies, provide 128 different codes of non-interfering operation.
NOTE: The enable feature and the release feature require one command code each.
3.1.8
Release Indication
a. Before releasing, unit will reply with one ping when interrogated.
b. Immediately upon releasing, unit will automatically transmit four pings with 200 millisecond spacing.
c. After releasing, unit will reply with five pings when interrogated, again separated by 200 milliseconds.
3.1.9
Slant Range
Up to 10 km when used with the Model DS-7000 Deck Unit.
3.1.10
Enable Time
Selectable up to 255 hours, normally shipped set to 12 hours. If “0” hours is selected, the unit will
remain enabled permanently.
3.1.11
Beam Pattern
Essentially omnidirectional in the upper hemisphere.
3.1.12
Minimum Detectable Signal
Less than 85 dB re 1 micropascal.
3.1.13
Turnaround Delay
3 ms, standard (3-30 ms, optional).
3.1.14
Detection Jitter (or Repeatability)
±.1 milliseconds.
3.1.15
Receive Lockout Time
1.5 seconds, re-triggerable.
Содержание 865-A
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