To assist members who purchase a transmitter (or several of them) for their models, WRCS has purchased the receiver and the hand held Yagi antenna, these are kept permanently at the field in the steel container in the transmitter pound. This receiver works on 173MHz and 174 MHz bands. The 173mhz frequency is the frequency allocated to tracking of game in Australia. When ordering you can specify the frequency however it is not necessary for each member to have an entirely separate channel (channel 1 might be 173.000, channel 2 might be 173.010mhz), there is no costs difference on the choice of frequency.

Transmitters:
There are a number of options available when looking to acquire a transmitter:

Titley Electronics
Model GPI
Miniature lightweight radio transmitters, using space-age technology to give the highest possible performance and reliability.
Microlite transmitters can be adapted to transmit temperature, movement, light; or be solar-powered.
Their compact size makes them ideal for implants, and suitable for fitting to some of the smallest creatures, yet they will give power output equal to the largest transmitters available on the market today.
We custom make our transmitter packages to meet your specific requirements as to shape and size, battery life and power output.
Whatever your specifications, whether the transmitter is to be fitted to a buffalo for four years, or a bat for two weeks, the Microlite transmitter will be fine-tuned to give maximum performance. Average trackable distance on ground, using hand-held antenna, is 4-8 kilometres, or 30-35 kilometres by air.
Exceptionally long distances have been recorded using larger antennae, and higher vantage points, (e.g. over 100 kilometres).
Specifications:
Physical size: (without battery or aerial) 8mm wide x 10mm long x 6mm thick.
Weight: without battery, 1 gram.
Operating voltage: 3v DC.
DC current: adjustable from 60-450 microamps.
RF power output: 5 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.
Hybrid thick film circuit printed on ceramic boards.
High impact crystals are available, but increase size and weight.
The Model GP1-Ali-393x2 in the aluminium canister, which uses replaceable button cell (watch) batteries.
Model GP1-350 is a little square shaped package weighing approx.  7 grams, with a battery life of around 4 months continuous transmission; and Model GP1-750 is slightly larger and rectangular shaped, weighing around 11 grams, also with a four month battery life.  Both of these models have to come back to us to have the batteries replaced when required, at a cost of $ 80.50 per battery change.  Of course if the transmitters are turned off when not being used, you will  able to use them for many months or years, before four months of continuous use has been accumulated.
Price at December 2004 is AU$220 plus shipping to model clubs.
Contact: Phone: (02) 66 811017 Phone/fax: (02) 66 866617 www.titley.com.au

Merlin Systems, Inc.
The FMV series, are standard Falconry Transmitters. They operate on a powerful, 3 volt, two-stage multivibrator based circuit housed in rugged high-density, epoxy resin. A brass battery bracket allows easy and simple insertion and removal of batteries. The bracket includes a brass sleeve at the end for a leg mount attachment. Also included is our convenient replaceable screw-in antenna made of nylon coated steel wire. It is available in several thicknesses.
An additional option available with the FMV Series Transmitters is the magnetic ON/OFF switch. With this added feature you can simply deactivate the transmitter by attaching a magnet to it; no more having to remove and replace batteries before and after each use. You can have the transmitter ready to go, batteries securely in place and simply remove the magnet and the transmitter begins to operate. Replace the magnet and it shuts off again.
Stock frequencies vary but typically include several at 173 MHz. Please contact us for current frequencies and current price list. Custom frequencies are available upon request at additional cost.
1/3N-FMV: Large Falconry Transmitter

Weight - 8 grams with battery
Size - 1.30" (34mm) X 0.55" (14mm)
Battery Size - A single 1/3N Lithium Battery
Operating Life - 35 days
Range - Field tested at 30 miles plus direct-line-of-sight under ideal conditions
Current price at Feb 2005 - AU$200ea for orders of 2
Contact: Tel: (208) 362-2254 Fax: (208)362-2140 www.merlin-systems.com
Or contact Kerry Smith for local prices and volume discounts (starts at a quantity of 5) at kerry@rc-on-a-budget.com.au
 
 
 
 
 

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