Echo-sounders » Dual Frequency Transducers » Model 77 Series
Product Catalogue
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Model 77 Series
- DUAL FREQUENCY
- 30 LF / HF COMBINATIONS
- FISHING, NAVIGATION & SURVEYING
- HULL MOUNTING
- LOW SIDE-LOBES
- ROBUST NYLON HOUSING
The 77 SERIES hull-mounted dual frequency transducers offer both high and low frequency sections combined in a single unit.
The ability to specify a wide combination of frequencies in the same basic unit provides the echo sounder manufacturer and hydrographer with the flexibility to select a system to meet the desired survey requirements of resolution, range, silt penetration and beam pattern.
The high impact strength nylon body provides a mechanically robust and corrosion free transducer.
The 77 SERIES is available with or without acoustic calibration, traceable to National Standards. Transducer impedance can be adjusted to suit customers specification – see specification tables below.
Technical Specification
| Resonant Frequency (Nominal) |
|
|---|---|
| Beam Pattern |
|
| Bandwidth |
|
| Transmit Sensitivity |
|
| Receive Sensitivity |
|
| Nominal Impedance |
|
| Transmit Voltage / Duty Cycle (Max) |
|
Mechanical Specification
| Storage Temperature |
|
|---|---|
| Cable Type |
|
| Operating Depth |
|
| Cable Length |
|
| Weight Air/Water (including 10m cable) |
|
| Connector |
|
| Operating Temperature |
|
