We estimate the cost for VR2W-69kHz Coded Acoustic Receivers at $1,993.25 each for a total cost of forty-five (45) at $86,996.25; estimated cost for Magnetic Activation Probe for Acoustic Receiver for one (1) $39.00 for a total cost of $39.00; estimated cost for VR2Tx- 69kHz Coded Acoustic Receiver with Transponder ...

Passive (or autonomous) acoustic telemetry uses transmitters that ping less frequently but have a much longer battery life, and are detected by submerged stationary receivers. This strategy allows researchers to answer new questions regarding seasonal habitat preferences, coastal migrations, and survival.

Acoustic receivers are an integral component of any fish tracking study. They are used to detect and decode transmissions from acoustic fish tags and come in two types: Active tracking receivers are used for tracking animals in real-time from a vessel and can detect both continuous and coded transmitters.

The acoustic transmitters contain a transducer that intermittently produces signals by inducing high-frequency (416.7 kHz) vibrations in the water. These vibrations, or signals, are received by a stationary or mobile hydrophone submerged in the water.