General Specifications

Maximum Depth Exposure (minimum crush depth)	300 m (Transmitter, Transponder), 50m (Receiver, Transceiver)
Volume, Transceiver (Mk III)	480ml
Volume, Receiver (Mk II), Transmitter (Mk II), Transponder (Mk III)	283 ml
Mass, Transceiver (Mk III)	600g
Mass, Receiver (Mk II)	335g
Mass, Transponder (MK III), Transmitter (Mk II)	300g
Absolute Maximum Range (Mk II)	500 m
Typical Usable Range (Mk II, MK III)	300 m
Apparent Yaw/Azimuth resolution	0.1°
Apparent Elevation angle resolution	0.1°
Slant range measurement resolution	0.1 m
IMU Euler angle accuracy, typical (magnetic errors not included)	2°
Slant range error accumulation, Mk II	1 m/hr
Update rate	1 Hz
Transceiver Ping Frequency	25 kHz
Transponder Ping Frequency	25 kHz
Mk III Transceiver V-in power (see note)	5 to 28V 2.5W average, 3.5W peak @5V DC 2.1W average, 3.3W peak @12V DC
Mk II Receiver-in power (see note)	5V to 28V DC ~1.5 Watt
Mk III Transponder V-in power (see note)	5V to 28V 1.7W average 2.9W peak @5V DC 1.3W average, 4.1W peak @16V DC
Mk II Transmitter V-in power (see note)	5V to 28V DC 1.4W @ 5V 1.6W @ 28V
Serial Comms Voltage Levels	3.3V TTL or 5V TTL, auto sense
Ethernet	10/100 mbs

Note: Voltage is specified at the terminals of the printed circuit board of the device, user must ensure there is sufficient voltage after the cable voltage drop. Power supplies for all units must be able to supply burst currents to prevent drop-out and erratic operation. While the transmitter will work with a low impedance 5V supply we recommend using 9V or higher, unless you know how to figure out if your 5V power supply is low-enough impedance.

Note: Resolution ≠ Accuracy!