Simrad EY500, Instruction Manual

Page: 74 / 262

Operation
40
P3402/C
2.5 THE TRANSCEIVER MENU
Transceiver Menu 38 kHz
Mode Active
Transducer Type ES38B
Transd. Sequence Off
Transducer Depth 0.00 m
Absorption Coef. 10 dBkm
Pulse Length Medium
Bandwidth Auto
Max. Power 125 W
2-Way Beam Angle -20.6 dB
Sv Transd. Gain 26.50 dB
TS Transd. Gain 26.50 dB
Angle Sens.Along 21.9
Angle Sens.Athw. 21.9
3 dB Beamw.Along 7.1 dg
3 dB Beamw.Athw. 7.1 dg
Alongship Offset 0.0 dg
Athw.ship Offset 0.0 dg
The Transceiver Menu is used to set important receiver and transmitter
parameters. In this menu all the parameters will influence on the final result
and must therefore not be tampered with.
The transceiver in the EY 500 has a unique signature corresponding to its
frequency and type (split or single beam). When the EY 500 program is in the
start-up mode, it will read this signature and fetch the parameters
corresponding to the installed transceiver. There are several transducer types
associated with each frequency, and a list of the relevant transducers is
displayed in the Transducer Type submenu. Here the operator must select the
transducer type connected to the system. The above Transceiver Menu shows
the default parameters of a 38 kHz split-beam transceiver.
When the transducer type is selected in the Transducer Type submenu, the
default parameters will come up in the Transceiver Menu. There may be
differences between the default values and the measured transducer values.
Each transducer delivery includes a data sheet with measured parameter values
for that specific transducer. These values should be entered after starting up the
EY 500 for the first time.
The Sv and TS transducer gains may be decided by means of a calibration
routine. Refer to the section "Installation, System Test and Calibration".