Titley Electronics: Two stage transmitters

Products > Transmitters > Two stage

Two stage transmitters

Model GPI

Using long life lithium batteries these modest sized lightweight two stage transmitters employ advanced technology to provide the highest possible performance and reliability. Microlite transmitters come in two varieties, standard and programmable.

The standard unit has a pre set pulse width and pulse rate and can be reduced in power output with a trade off to battery life when weight vs tracking time is an issue.

The programmable unit can have a variety of functions such as hours on /off per day, weeks on/off etc. This feature is useful when an increase in battery life is needed at a higher power level. The unit can vary the pulse rate when certain sensors are employed, such as movement, temperature and mortality. It can also indicate a low battery. For example 20 ppm low battery, 40 ppm normal, 60 ppm movement, 80 ppm mortality. These options can be further customised to suit individual needs.

All programmed units can be activated by touching with a suitable magnet. The standard units are activated by a removable magnet which is taped to the unit for shipping.

Their compact size makes them ideal for implants, and depending on battery size, suitable for fitting to some of the smallest creatures. Yet they will give power output equal to some of the largest transmitters available.

We custom make our transmitter packages to meet specific customer requirements as to shape and size, battery life and power output. We urge those looking for telemetry tracking solutions to contact us directly for personal assistance. Here is an enquiries with prompts for the kinds of information needed to provide the personalised service Titley is committed to.

Whatever the customer specifications--whether the transmitter is to be fitted to a buffalo for four years, or a frog for weeks, the Microlite transmitter will be configured to give maximum performance. Average trackable distance on ground, under ideal conditions, using hand-held antenna, is 4-8 kilometres, or 30-35 kilometres by air.

Physical size: 8mm wide x 10mm long x 6mm thick

Weight: Without battery, 1.3 gram

Operating voltage: 3v and 3.6v DC

DC current: Adjustable from 60-450 microamps

RF power output: 10 milliwatts

Pulse duration: Adjustable, 15-30 milliseconds

Pulse rate: Adjustable, 1-150 pulses per minute

Frequency stability: Better than 2kHz at -20 degrees C to +40 degrees C

Circuit layout: Separate transmitter and pulser boards

Terminal configurations: Neg./pos. fit opposite the crystal, and crystal fits lengthwise on the circuit board

Peripheral connections: Suitable breaks and pads in circuit to incorporate additional functions

Environmental considerations: Glazed to eliminate corrosion and possible silver migration due to the presence of moisture. Coated in military grade conformal coating

Aerial: Both tuned loop and stranded wire aerial can be used

Circuit: Hybrid thick film circuit printed on ceramic boards