bd-2nc

These tiny collar transmitters are designed for very small mammals (mice, voles, etc.). Collars can also be configured for birds and bats.

Specifications

Model Weight Standard Life Lifespan range Dimensions: LxWxH (mm)
BD-2NC 0.45g 7 days 3-7 days 11 x 6 x 4.6
BD-2NC 0.50g 12 days 8-15 days 11 x 6 x 4.6
BD-2NC 0.55g 21 days 13-22 days 11 x 6 x 4.6
BD-2NC 0.65g 24 days 17-30 days 11 x 6 x 4.6

Please note: We do not recommend storage for more than 3 weeks prior to use.

Frequency Range:  Limited frequencies in: 148, 149, 164, 165, 172 & 173 MHz only.

Transmitter: Crystal controlled two-stage design, pulsed by a multivibrator.

Pulse Width (standard): 20 milliseconds.

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 transmitter and battery are encapsulated in biologically inert epoxy, to resist damage from abrasion and chewing. Battery placement determines shape. The unit is attached to a collar formed by the antenna or a separate wire collar or elastic. A TYGON sleeve covers the wire to prevent abrasion on the animal’s neck.

Antenna: A stranded stainless steel wire covered with a black nylon coating. The antenna may also serve as the collar on some models.

Activation: Removing an external magnet starts the transmitter. Replacing the magnet stops the transmitter.

Options

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 ~25 ppm at 0°C to ~40 ppm at 40°C. Each transmitter is supplied with a plotted calibration curve. This option adds ~0.05g to the finished weight of the transmitter.

Position (suffix “P”): The pulse rate switches from ~24 ppm in a vertical position to ~50 ppm in a horizontal position. This option adds ~0.5g to the finished weight of the transmitter.

Photos