This transmitter uses 2 batteries to allow for longer lifespans. It was designed for glue mount attachment on turtles. It can also be configured for backpack attachment to birds, and large mammals.
Specifications
| Model | Weight | Standard Life | Lifespan range | Dimensions: LxWxH (mm) |
|---|---|---|---|---|
| RI-2C2 | 23g | 24 months | 12-48 months | 28 x 29 x 14 |
| RI-2C2 | 40g | 36 months | 36-60 months | 37 x 33 x 16 |
Frequency Range: 138 to 235 MHz.
Transmitter: Crystal controlled two-stage design, pulsed by a CMOS multivibrator.
Pulse Width (standard): 24 milliseconds (ms). Available from 22-30ms.
Pulse Rate (standard): 40 pulses per minute (ppm). Available from 20-120ppm.
Power Output: Set to use available battery power over the required transmitter life.
Housing: The battery and transmitter are encapsulated in an inert waterproof epoxy.
Attachment: Designed primarily for glue mounting. Large tubes can be incorporated for backpack attachment.
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.
Options
Mortality (suffix “M”): The available delays are 2 or 12 hours. The mortality circuit indicates its activation by increasing the pulse rate from a nominal ~42 ppm to ~75 ppm. After the mortality mode has been triggered, any motion resets the transmitter to the normal pulse rate. This option adds ~0.5g to the finished weight of each 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.
Temperature (suffix “T”): An increase or decrease in temperature results in a corresponding increase or decrease in pulse rate. At the standard settings, the pulse rate changes from ~15 ppm at 0°C to ~50 ppm at 40°C. Each transmitter is supplied with a plotted calibration curve. This option adds ~0.05g to the finished weight of each transmitter.
Position (suffix “P”): The pulse rate switches from ~24 ppm to ~50 ppm 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.
Photos
Videos
| TRANSMITTER TRACKS – Episode 1: Madagascar |