IXSEA RAMSES RT 2500 S Universal, Manual

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RAMSES RT 2500 S Universal – User Guide
II.2 Acoustic Specifications
The RT961S-Mk2 is equipped with the low frequency 7.5 – 18 kHz transducer. The
characteristics of this transducer are:
•
Reception : 8 à 16 kHz
•
Transmission : 8 à 18 kHz
•
Directivity diagram : Hemispherical (± 4 dB)
•
Reception (Sh) : -185 ± 7 dB ref. 1V/µPa (site 0°)
•
Transmission (Sv) : 131 ± 6 dB ref. 1µPa/V at 1 m (site 0°)
•
Static capacity : 14.0 ± 1.5 nF
•
Cold and hot point of the ceramic are isolated from the mechanical mass
II.2.1 R
ECEPTION
S
PECIFICATIONS
The RT961S-Mk2 receives on the following channels: Channels
Individual channels in the frequency interval of 8.0 to 16.0 kHz:
•
Two channels ( BIT_0 and BIT_1 ) dedicated to the acoustic remote control, FSK-2
states, factory configured, monochromatic signals and/or M-FSK (frequencies,
durations and chirp codes)
•
Two channels ( IIF and CIF ) dedicated to the transponder mode, on-site configurable,
monochromatic signals and/or wide band MFSK (frequencies, durations and chirp
codes)
The RT961S-Mk2 receives the following signals: Signals
•
Monochromatic in the interval 8.0 to 16.0 kHz by 500 Hz steps, +/- 10 Hz, duration 10
ms
•
M-FSK wide band, in the same frequency interval
•
Frequencies and number of XXX
•
Number of M-FSK combination
Reception Sensitivity, Minimum Detectable Signal (MDS): 80 +/- 6 dB ref 1 µPa or better
Inhibition of the reception on the IIF /CIF channels, XXX
II.2.2 T
RANSMISSION
S
PECIFICATIONS
The transponder transmits the following signals: Signals
•
CRF, answering the IIF
•
IRF, answering the CIF
•
CAF, answering a command signal
•
PFR, in Pinger mode, transmitted a regular time intervals
MU – RT961SMk2 – AN - 001- A – June 2010 7