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Futaba 4YF 2.4GHz FHSS User Manual

Page 7

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7

INTRODUCTION TO THE 4YF-2.4GHz SYSTEM

IMPORTANT!: Always turn on the transmitter first, then the receiver. When turning off the system, always turn off the receiver
first. The object is never to have the receiver on by itself. Otherwise, the servos or control surfaces could be damaged, or in the
case of electric-powered models, the motor may unexpectedly turn on causing severe injury.

Transmitter

Programming features include servo reversing on all and factory-set, pre-programmed “wing-type” mixer elevon mixing may be
activated. The power down switch activates a special “Power Down Mode” for doing a ground range check.

TRANSMITTER CONTROLS AND DESCRIPTIONS

The diagram and explanations briefly describe the functions
of the Futaba T4YF-2.4GHz transmitter.
NOTE: The diagram shows a Mode 2 system.

Carrying handle

(not an antenna)

Power down switch

Rudder trim lever

Battery & RF indicator

Neck strap hook

Throttle/rudder

control stick

(Mode 2)

Aileron/elevator
control stick
(Mode 2)

Throttle trim

lever (Mode 2)

Elevator trim lever
(Mode 2)

NOR. : Normal side
REV. : Reverse side

AIL. : Aileron
ELE. : Elevator
THR. : Throttle
RUD. : Rudder

Aileron trim lever

On-Off switch

Charging jack

Servo reverse switch

•Transmitting signal

Green: on, Red: on

•Power Down Mode

Green: on, Red: fast blink

•Low Battery Alarm

Green: on, Red: slow blink

DESCRIPTIONS:

Neck strap hook - Mounting point for optional neck strap.

Aileron/elevator control stick - Operates the servos connected to channel 1 (aileron) and channel 2 (elevator) in the
receiver.

Trim levers (all) - Used to shift the neutral or center position of each servo as labeled in the diagram.

Charging jack - Port for charging the transmitter batteries.

On/Off switch - Used to power on or turn off the transmitter’s power.

Throttle/rudder control stick - Operates the servos connected to channel 3 (throttle) and channel 4 (rudder) in the receiver.

Antenna (Internal) - Radiates signals to the receiver.

WARNING

Do not cover/hold the built-in antenna part of the transmitter with your hand during flight. Do not put any
conductive plate/sticker on the antenna part.
Otherwise, the operating range may become reduced.

Antenna (There is antenna inside of this part.)

WARNING

The antenna as indicated by the ”

(arrow direction) should not be pointed
directly at the model.

As with all radio frequency transmissions, the
strongest area of signal transmission is from the
sides of the antenna.

CAUTION

Never charge dry-
cell batteries.