# Specifications

| Attribute                                          | OS3D 450 SS                                                                                                                                                                                     | OS3D RX16                                                                 |
| -------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------- |
| Frequency (nominal)                                | 450 kHz                                                                                                                                                                                         | 450 kHz                                                                   |
| Side scan beam width (2 way)                       | 0.5 deg                                                                                                                                                                                         |                                                                           |
| Point cloud along track beam width (1 way TX beam) | 0.8 deg                                                                                                                                                                                         | lesser of TX beam width or 3.4 degees                                     |
| Cross track angle resolution (source)              | < 1 deg (angle of arrival)                                                                                                                                                                      | < 1 deg (angle of arrival)                                                |
| Cross Track (vertical) beam width (each side)      | TX: 90 deg (nominal @-10dB)                                                                                                                                                                     |                                                                           |
| Max range 2D side scan                             | 150m slant range per side                                                                                                                                                                       |                                                                           |
| Max range 3D point cloud                           | 100m slant range per side                                                                                                                                                                       |                                                                           |
| Range Resolution                                   | up to 1/1000th of range                                                                                                                                                                         | up to 1/1000th of range                                                   |
| Number of RX array elements                        | 16                                                                                                                                                                                              | 16                                                                        |
| Maximum ping rate                                  | 20 Hz                                                                                                                                                                                           | 20 Hz                                                                     |
| Point cloud data                                   | angle, time of flight, relative amplitude                                                                                                                                                       | angle, time of flight, relative amplitude                                 |
| IMU sensors                                        | pitch and roll                                                                                                                                                                                  | pitch and roll                                                            |
| Timing synchronization                             | direct sync to ntp server                                                                                                                                                                       | direct sync to ntp server                                                 |
| Power                                              | 10-30V, 15 watts max (pinging)                                                                                                                                                                  | 10-30V, 5W typical                                                        |
| Data interface                                     | 100BaseT Ethernet                                                                                                                                                                               | 100BaseT Ethernet                                                         |
| PCBA housing                                       | separate PCBA must be housed in vehicle water tight enclosure                                                                                                                                   | PCBA enclosed in RX16 module                                              |
| Electrical connection                              | <p>TX: PCBA has 3 position transducer interface, 4 pin JST for Ethernet interface, 2 pin JST for power.</p><p>RX: single cable w/4 pin JST for Ethernet data + 2 wires for power and ground</p> | single cable w/4 pin JST for Ethernet data + 2 wires for power and ground |
| Recomended mounting angle                          | 20-30 degrees downward from horizontal                                                                                                                                                          | mount parallel to transmit transducer                                     |
| Max operating depth                                | 300m                                                                                                                                                                                            | 300m                                                                      |
| Weight in air                                      | 881g                                                                                                                                                                                            | 486g                                                                      |
| Weight in water                                    | 350g                                                                                                                                                                                            | 200g                                                                      |


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