Holohil Systems Ltd. - EI-2 & EI-2A

Holohil Systems Ltd.
EI-2 & EI-2A

These transmitters are designed to be mounted in the ear of large mammals such as bears, deer, bison or hippopotamus.

Frequency Range: 138 to 235 MHz.

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

Pulse Width & Rate: 25 to 30 ms, nominal 0.7 p/s (42 p/m).

Specifications: (* = model shown above)

Model	Weight	Nominal Life	Lifespan range	Dimensions: LxWxH (mm)
EI-2*	30g	12 months	6-18 months	44 x 44 x 18
EI-2A	50g	18 months	18-30 months	61 x 47 x 27

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: The transmitter is placed in the cup of the ear. The Ľ" x 20 threaded nylon stud is passed through a hole in the ear and secured with a fabric washer and nylon nut.

Antenna: A loop within the epoxy encapsulation.

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

OPTIONS
Mortality (suffix "M"): EI-2A only. The available delays are 4 or 12 hours. The 4 hour delay circuit indicates its activation by a double pulse. The 12 hour delay circuit indicates its activation by increasing the pulse rate from a nominal ~42 p/m to ~75 p/m. 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.

Holohil Systems Ltd., 112 John Cavanaugh Drive, Carp, Ontario, Canada K0A 1L0
Tel: 613-839-0676 Fax: 613-839-0675 E-mail: info@holohil.com