Marshall Radio Telemetry PowerMax User Manual

User Guide
Congratulations on your purchase of a PowerMax
short antenna falconry transmitter. The PowerMax no longer uses the heavier base-loaded antenna and in
keeping with its name, the antenna has been lengthened slightly to provide maximum power – ideal with the
new Marshall TrackPack
which has the power of the previous generation of PowerMax. If your bird is lost with a new battery, the
PowerMax will run continuously for at least 8 days!

Battery

The PowerMax uses the Panasonic or Renata CR1632 lithium 3-volt battery. Be sure to use only batteries
marked "high-drain" (CR) that are designed for the more demanding applications. As soon as the battery is
installed, the transmitter will start running.
be sure to have a few spares on hand when going into the field or planning that hunting trip.
Important: The PowerMax has a memory which keeps track of the total run time for each
battery. The transmitter "remembers" its state from the last time the battery was removed. To
clear this memory (every time a new battery is installed), the battery should be installed
backward for a moment (positive side facing transmitter) and then put back in normally.
To remove the battery, use a sharp object, such as the end of the tail spring of another transmitter, to pry the
battery out through the open slot on the edge of the battery compartment.
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Apollo 13 Mode

: This special feature gives you the most possible time to find your bird. After transmitting
continuously for sixteen hours, the PowerMax figures your bird is probably lost and acts to conserve battery life
with shorter and less frequent pulses. Because of this feature, the actual battery life if you loose your bird will
be approximately double what is shown in the chart below. In other words, the chart shows battery life with
normal hunting, assuming the bird is not lost for long periods and Apollo 13 Mode is never activated. If you
loose your bird with a fresh battery, Apollo 13 Mode will double the life of the battery.
Low Battery Warning: After a battery has been used for a total accumulated time of about 60 hours, the
normal single beep of the transmitter changes to a double beep on every tenth pulse. The transmitter runs at
the same power, but is simply warning you to
change the battery.
Recommendation: You should get into the habit of
changing the battery when you hear the double
beep. If you were to fly your bird right before the
double beep warning began and the bird became
lost, you would have about five days or so to
search for it. If you loose your bird after the double
beep, you will have considerably less time to look
for it.
Cold Temperature Use: If the bird will be in very cold
conditions or if it may become lost overnight when the
temperature drops, you should always use a new battery. As
coin cell batteries run through their life cycle, they lose some
of their ability to provide current to run the transmitter in cold temperatures. While the CR1632 battery will work at arctic
temperatures for the first 36 hours of its life, after 72 hours it may not operate below -20°C (0°F) and subsequently will require even
warmer temperatures.
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mounting system. For the shortest available antenna use the Marshall RT Plus,
Note: The CR1632 battery can be hard to find in some locals, so always
© 2005 Marshall Radio Telemetry, Inc.
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! This transmitter is designed to give the best range of any
Rev. 10-2009