Low Frequency Echo Sounder (18 kHz)
SX34-18 Directional Transducer
18 kHz low frequency echo sounder (SX34-18)
Other Specifications
USEABLE FREQUENCY RANGE 3DB FROM FR 16.5 kHz - 19.5 kHz
OPEN CIRCUIT VOLTAGE OCV -175 dB re 1 V/µPa
INPUT IMPEDANCE 60.2 Ω (@ 18 kHz)
RATED POWER 2 DUTY CYCLE 2000 Wrms
OPERATING TEMPERATURE RANGE -30 °C - 40 °C
STORAGE TEMPERATURE RANGE -50 °C - 60 °C
Overview
RESONANCE FREQUENCY
18 kHz
BEAM ANGLE AXIAL 3DB AT FR
14° (Conical)
DEPTH RATING
1500 m
TRANSMIT VOLTAGE RESPONSE TVR
165 dB re 1 µPa/V @ 1m

The SX34-18 low frequency echo sounder was custom designed to meet two key performance requirements:

1.) a narrow beam (14°) given its relatively low frequency of 18 kHz

2.) performance down to 1500m

The transducer also provides a high receive sensitivity.

Outline

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