CVM is a rugged waterproof design dual frequency sounder type. HF channel frequency range 100KHz-340KHz, suitable for shallow water survey and side-scan measurements. Low-frequency channel range is 24KHz-50KHz. With greater depth and for measuring fluid mud detection. Because of broadband frequency input, CVM compatible with a variety of new and existing transducer. 


Key performance indicators 
◆ Operating Frequency 
LF: 24 - 50 kHz 
High frequency: 100 - 340 kHz 
Frequency adjustment step size: 1 kHz 
◆ odometry 
0.5 - 600 m @ 33 kHz 
0.2 - 200 m @ 210 kHz 
◆ Output Power 
LF: 420 W RMS 
High frequency: 350 W RMS 
◆ Accuracy 
0.10 m ± 0.1% depth @ 33 kHz 
0.01 m ± 0.1% depth @ 200 kHz 
◆ Resolution 
0.01 m 
◆ phase adjustment 
Automatic or manual adjustment of 30%, 20%, 10% superposition
◆ tagging content 
Internal automatic annotation: date, time, location 
External dimension: via RS232 interface input 
◆ Communication Interface 
2x RS232 
Input data: DGPS, heave compensation swell 
Output data format: NMEA 0183, DESO 25, Odom and depth of analog image data output through an Ethernet port