This unit is designed for aggressive raptors (such as spotted owls) where a durable back-pack is required. It is designed to present a very low profile and has a very rugged antenna and anchoring system.
Frequency Range: 138 to 235 MHz.
Transmitter: Crystal controlled two-stage design, pulsed by a CMOS multivibrator.
Pulse Width & Rate: 20 to 30 ms, nominal 0.7 p/s (42 p/m).Specifications:
|Model||Weight||Nominal Life||Lifespan range||Dimensions: LxWxH (mm)|
|RI-2A||8g||6 months||3-9 months||50 x 25 x5|
|RI-2A||12g||12 months||9-18 months||50 x 25 x 7|
|RI-2A||17g||24 months||18-30 months||50 x 25 x9|
Housing: The battery and transmitter are encapsulated in an inert waterproof epoxy.
Antenna: Stranded stainless steel cable covered with a black nylon coating. Two layers of shrinkable tubing reinforce the antenna at its base.
Activation: Removing an external magnet starts the transmitter. Replacing it stops the transmitter.
Activity (suffix "A"): Every motion event exceeding a preset range of angles generates one extra pulse between the normal pulses. This activity pulse is distinctively shorter (~12 ms) than the normal pulses. This option adds ~0.5g to the finished weight of each transmitter.
Position (suffix "P"): The pulse rate switches from ~24 p/m to ~50 p/m when the animal changes body position, pivoting the transmitter 10° or more from a preset orientation. This option adds ~0.5g to the finished weight of each transmitter.