The RESON TC 2178 is a dual frequency hydroacoustic transducer designed for use in navigation and hydrographic echosounder systems. It operates at 33 kHz and 200 kHz, combining low and high frequency performance to support seabed profiling and water column measurement tasks. The unit incorporates piezoceramic elements engineered to support stable acoustic conversion and consistent operational behavior in marine environments.
With a hydrodynamic housing and conical beam pattern, the transducer is configured for installation in systems requiring controlled acoustic dispersion at both operating frequencies. Its performance characteristics include defined transmitting and receiving sensitivities across both bands, supporting integration into survey-grade echosounding setups. The construction uses a PVC housing and a marine-rated cable assembly suitable for subsea deployment within specified operating and survival limits.
| Model: | RESON TC 2178 |
| Type: | Dual frequency transducer |
| Operating frequencies: | 33 kHz ±2 kHz / 200 kHz ±5 kHz |
| Transmitting sensitivity: | 168 dB ±3 dB (33 kHz), 174 dB ±3 dB (200 kHz) re 1µPa/V at 1m |
| Receiving sensitivity: | -177 dB ±3 dB (33 kHz), -187 dB ±3 dB (200 kHz) re 1V/µPa |
| Impedance: | 80 Ω ±24 Ω at 33 kHz and 200 kHz |
| Beam width: | 22° ±2° (33 kHz), 9.5° ±1° (200 kHz) |
| Beam shape: | Conical |
| Max input power: | 1000 W at 33 kHz (1% duty cycle), 450 W at 200 kHz (1% duty cycle) |
| Operating depth: | 30 m |
| Survival depth: | 50 m |
| Operating temperature: | -2°C to +35°C |
| Storage temperature: | -30°C to +50°C |
| Weight: | 9.7 kg (with cable) |
| Housing material: | PVC |
| Cable: | 18 m FALMAT Type FM088095-7, 4x1 (2 twisted pairs), PUR jacket |
