Introduction
The Simrad 38/200 Combi W is a
dual frequency transducer (38 and 200
kHz), and both frequencies operate
with wide beams (31°). This makes
the transducer perfect for shallow
water sh detection using the 200 kHz
frequency, and excellent for bottom
discrimination from shallow depths
and down to several hundred meters
using both frequencies.
The transducer is not suited for
scientic use.
Order numbers
Transducer: KSV-208845
Mounting ring: ES1-208846 (*)
Clamping ring: ES1-203672 (*)
(*) These items must be ordered separately.
Technical specications
Please note that the specications can be
altered without prior warning.
38 kHz
• Resonant frequency: 38 kHz
• Directivity: 15.5 dB
• Side lobes: Less than -15 dB
• Back radiation: Less than -20 dB
• Max. pulse input: 400 W
• Max. continuous input: 4 W
• Source level: 208 dB re 1µPa
• Transmitting response:
164 dB re 1µPa per V
• Receive sensitivity, open circuit:
-184 dB re 1V per μPa
200 kHz
• Resonant frequency: 200 kHz
• Directivity: 16 dB
• Side lobes: Less than -20 dB
• Back radiation: Less than -30 dB
• Max. pulse input: 250 W
• Max. continuous input: 2,5 W
• Source level: 197 dB re 1µPa
• Transmitting response:
155 dB re 1µPa per V
• Receive sensitivity, open circuit:
-197 dB re 1V per µPa
Common
• Circular beamwidth: 31°
• Nominal impedance: 75 ohms
• Maximum transducer depth: 20 m
• Cable length: 15 m
• Cable diameter: 10.6 ±0.5 mm
• Weight with cable: 5 kg
• Storage temperature: -20 to 70°C