The 4FM transmitter (Tx) is designed for mode II operation. Mode II is most commonly used throughout the U.S. and
incorporates the control of aileron and elevator on the right stick, throttle and rudder on the left stick (see figure 1).
During normal conditions, the range, or safe operating distance from the Tx to the Rx is “line of sight”. This means the
4FM should maintain complete control any time you can see your model. The 4FM operates on the 72MHz frequency
band.There are 50 different channels in the 72MHz band ranging from 72.010MHz (Ch11) through 72.990MHz (Ch60).
For safety reasons, you must always be aware of what channel you are using so that no two radios in the same area
are EVER operating on the same frequency simultaneously.
Use the frequency flags that are supplied with your R/C system so that other modelers at the flying field can identify
your channel number. Attach the flags to the Tx antenna as shown in figure 2.
THE TRANSMITTER PAGE 2
FIGURE 1
FIGURE 2
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