Simrad ES120-7C - DATASHEET REV D Datasheet

Simrad ES120-7C
Split beam echo sounder transducer
Introduction
The Simrad ES120-7C is a 120
kHz split-beam composite transducer
with a large bandwidth. This provides
a fine range resolution, which is
important for single fish detection and
target strength measurements. The
transducer has four quadrants.
Order number
KSV-204580
Technical specifications
The following specifications are
valid when all four quadrants are
wired in parallel.
• Resonant frequency: 120 kHz
• Circular beamwidth: 7 deg
• Directivity:
D: 650
DI = 10 log D: 28 dB
• Equivalent two-way beam angle:
Ψ: 0.009
10 log Ψ: -21 dB
• Side lobes: Less than -23 dB
• Back radiation: Less than -40 dB
• Nominal impedance: 19 Ω
(Each quadrant: 75 Ω)
• Transmitting response:
185 dB re 1μPa per V
• Receiving sensitivity, open
circuit: -190 dB re 1V per μPa
• Electro-acoustic efficiency: 0.75
• Max. pulse power input: 1000 W
• Max. continuous input: 10 W
• Max. transducer depth: 20 m
• Cable length: 20 m
• Cable diameter: 10.6 mm
• Weight: 2.4 kg
• Storage temperature: -20° to 70°C
T E C H N O L O G Y
Beam pattern
F O R S U S T A I N A B L E
www.simrad.com
F I S H E R I E S
Admittance