The FS-3ER is FarSounder's latest product introduction for longer range surface ship navigation and obstacle avoidance which uses Dual Transmission™ technology. Like the FS-3DT, it provides a 90° field-of-view depth map with a single ping. However, the FS-3ER also includes a narrow beam 800m – 1,000m range mode. This Dual Transmission™ design can be configured to automatically switch between the standard 90° ping and the long range 1,000m narrow beam ping.

The system includes a bulkhead mount power module and a streamlined sonar head with Dual Transmission™ capabilities. The user interface is FarSounder's SonaSoft™ software which is a Windows XP software package that is capable of networking a single sonar head with one single user interface station.

The FS-3ER operates at 70kHz and has an accuracy of approximately 1.6 degrees.

The system includes a 2U rackmount power module and a streamlined sonar head with Dual Transmission™ capabilities.

The FS-3ER Forward Looking Sonar System consists of:

- 70kHz Transducer Module – Stainless Steel F71774
- Transducer Shipping Case F71776
- Power Module – Bulkhead Mounting F71775
- Sonasoft™ FS-3ER Software and Client License F43452
- 100' (33m) Connection Cable (Transducer Module – Power Module) F24555
- Operation Manual FS-3ER – Printed F31586
- Installation Manual FS-3ER – Printed F31587
- Operation & Installation Manuals FS-3ER – CD F31554
- Dry Connector - Transducer Module I/O Connection F31588
- Cable End Cap For wet end when not connected to Transducer Module F24557
- Standard Spare Parts F51221
- Export Control
- PC not included, optional accessory

• Transmit Characteristics: Center Frequency 70kHz
• Receive Characteristics:
• - Accuracy +/- 1.6degree
• - Solid State Multi-Channel Phased Array
• - Thousands of Simultaneous Electronically Steered Beams
• - Pitch and Roll Stabilization
• Performance Ratings:
• - Bottom Mapping Range 8+ Water Depths
• - Vertical Field of View 90 degrees
• - Maximum Pitch and Roll +/- 20 degrees
• - Pitch and Roll Accuracy within 0.5 degrees
• - Maximum Depth 150 feet (50 meters)

Option 1: FS-3ER
Option 2: FS-3ER-N