Hitec RCD R3F75B Remote Control Transmitter User Manual Ranger 3FM

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Document ID	272830
Application ID	nQua+xJ753Zh+RPjjEgWmA==
Document Description	users manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	28.82kB (360189 bits)
Date Submitted	2002-09-25 00:00:00
Date Available	2002-09-24 00:00:00
Creation Date	2002-06-06 20:50:15
Producing Software	Acrobat Distiller 5.0 (Windows)
Document Lastmod	2002-08-19 09:12:51
Document Title	Ranger 3FM
Document Creator	Adobe PageMaker 7.0
Document Author:	Tony

NON
BEC
3 CHANNEL
WELCOME TO THE INTRIGUING WORLD OF R/C
Thank you for purchasing the Ranger 3 channel FM radio system and thereby entering
into the wonderful world of radio control model hobby. The Ranger 3 radio is the
finest of its kind using the latest electronic technologies thereby assuring the best
performance and highest quality.
Team up with Hitec, “The R/cer’s Partner” and you will enjoy the many facets of R/C
fun.
(WARNING) Please note that the receiver of RANGER 3 FM is not equipped with a
Battery Eliminator Circuit. So don’t exceed 6 volts Only use 4 cell “AA” size batteries,
4-5 cell NiCad batteries or an electronic speed controller which has a B.E.C..
FEATURES AND SPECIFICATIONS
A.TRANSMITTER
•
•
•
•
•
•
•
3 CHANNEL FM TRANSMITTER FOR REAL TIME SERVO RESPONSE
CRYSTAL INTERCHANGEABLE
TWO CHANNEL SERVO REVERSING SWITCHES
CHARGER CONNECTOR FOR NICAD BATTERIES (8 CELL 9.6V)
ADJUSTABLE SERVO TRAVELING (ATV) FOR STEERING AND THROTTLE
QUICK START/BRAKE FUNCTION FOR FAST RESPONSE OF THROTTLE
ALL SMT CIRCUITRY
B.RECEIVER (NON B.E.C.)
•
•
•
•
FM SINGLE CONVERSION RECEIVER FOR NOISE PROOF
CRYSTAL INTERCHANGEABLE
SIZE AND WEIGHT
SIZE: 48 X 29 19mm (1.9 X 1.1 X 0.7”), WEIGHT 22.5g (0.79oz)
C.SERVO
•
•
•
•
•
HEAVY DUTY AND DUST RESISTANT DESIGN
HIGH SPEED: 0.16sec / 60º
HIGH TORQUE: 3.5kg/CM (44oz/in)
HITEC CUSTOM CHIP FOR NARROW DEADBAND
ALL SMT CIRCUITRY
RANGER 3 CH FM LAYOUT DIAGRAM
TRANSMITTER ANTENNA
CARRYING HANDLE
POWER METER
CH 3 VARIABLE
SWITCH
STEERING
CONTROL STICK
NEUTRAL
POSITION LEVER
THROTTLE
CONTROL STICK
STEERING
TRIM LEVER
THROTTLE
TRIM LEVER
TRANSMITTER
POWER SWITCH
CONNECTOR
JACK
TRANSMITTER
CRYSTAL
STEERING SERVO REVERSE SWITCH
THROTTLE SERVO REVERSE SWITCH
RECEIVER
ANTENNA
RECEIVER
SWITCH
(CH 3)
RECEIVER
CRYSTAL
(CH 2)
(CH 1)
BATTERY HARNESS
(1.5v X 4)
THE VARIOUS USES OF THREE CHANNEL RADIOS
A.VEHICLES & BOATS
You can operate all model vehicles and boats of course with this advanced three-channel radio
whether they are engine powered of battery operated. Since the basic maneuver of all vehicles
and boats is throttle and steering (rudder), two-channel operation is all you need in most cases.
However the third channel provides one more auxiliary channel you can use for whatever purpose
you may desire.
B.AIRPLANES & GLIDERS
The main use of the third channel for aircrafts would be throttle control. The third channel of this
radio is designed exactly for this purpose. After lifting the aircraft in the air, you will be able to
control speed and or turn off the power to let it soar by controlling the variable switch of the third
channel. To control speed or turn off the power in the air, you may need another accessory item
such as the Hitec SP-1801N Speed control or the SP-1003 ON/OFF control. The Sp-1801N will
provide proportional speed control from neutral to high end and the SP-*1003 will do ON/OFF
control without any extra servo for throttle. Also, both of the have Battery Eliminator Circuits and
Auto Cut OFF function so there is nothing else needed for enjoying the 3-channel aircraft model.
C.OTHERS
You may find many other models too numerous to mention or categorize such as tanks,
submarines, parachute planes, rocket launched gliders hovercraft etc…
(WARNING) Please note that certain frequencies are to be used solely for airborne
uses as well as certain frequencies earmarked only for surface use, so please consult
your local club or hobby store to make sure.
(EXAMPLE) In the U.S.A. 75MHZ: For surface only, 72MHz: For Aircraft only
3 CHANNEL WORLD
VEHICLES
ON-ROAD OFF-ROAD MONSTER
CAR
BUGGY
TRUCKS
AIRCRAFT
OTHERS
BOATS
SHIPS
OTHERS
GLIDERS
AIRPLANES
OTHERS
SETTING UP
Please read the following section carefully before installation and operation of your new model. The
instruction was written with the beginner in mind but even experienced modelers should take note.
A.BATTERY INSTALLATION
The transmitter uses eight “AA” size batteries and four for the receiver. We recommend using the
NiCad batteries whenever possible as it will prove to be far more economical in the long run.
1) When loading the batteries, please make sure the transmitter and the receiver switches are in
the off positions.
2) Open the battery compartment at the back of the transmitter by pressing the cover down and
toward the bottom. (See fig 2)
3) Load batteries into the slots paying close attention to the polarity. (See fig 2)
4) Replace the battery cover and turn the power “ON” to see if the indicating arrow will move up. If
the batteries are fresh, the indicating arrow will move to the far right side but if the arrow is in the
low power or lower part of the yellow zone, you had better replace the batteries or recharge your
NiCad batteries. (See fig 3)
Loading Battery fig 2
8 AA SIZE BATTERY
BE CAREFUL TO LOAD
BATTERIES IN THE
RIGHT DIRECTION
BATTERY COVER
PRESS DOWN AND
TOWARD BOTTOM
Power indicating fig 3
Full power: White zone
Medium power: Yellow zone
Low power: Red zone
B. OPERATION CHECK
1) Gently plug the switch harness and servo connectors into the proper slots of the receiver. The
connectors are polarized, thus, should fit only one-way. If they will not go in one-way, reverse it
and see if it will plug in. Never use excessive force to plug in connectors. (See fig 1).
2) Turn the transmitter power switch “ON” first, then the receiver switch. Always remember to turn
the transmitter on the transmitter before you turn the receiver on, otherwise your receiver may
receive other interfering signals from other radio sources and jitter.
3) Check to see if the servos move when you control the sticks. Move the trim lever to the center
position. (See fig 4)
4) Check the direction of the servo rotation. If you wish to change the direction of the
servo, push the servo reversing switch and check if it changes direction as you desired.
(See fig 4)
5) If you wish to have more forward throttle than backward, you can push down the neutral
position adjustment lever. You will have 30% more forward than backward. The control
stick will only return to the lower position. You may have to adjust the servo horn position when you do this.
6) Adjustable Travel Volume: you may use this volume to adjust servo travel according to
the characteristics of your model; the servo travel can be adjusted from 50% to 100% of
the total travel range by turning each ATV knob on the transmitter. (See fig 5). Turning
clockwise will increase servo travel and counter clockwise will decrease servo travel.
7) Quick Start/Brake: This button is located at the back of the transmitter and is a convenient feature if you ever get involved in competition racing. While pressing the button
with you little finger, you hold the throttle stick at full throttle, then let go at the start
signal by releasing the button. This button also doubles as a quick brake when you
need it. Instead of throwing the throttle stick down, you can simply press this button to
bring your car to a screeching halt. Before using the Quick Start/Brake feature, you
should preset the braking point by adjusting the Throttle Quick Trim as follows; With the
throttle stick set in neutral for your servo or speed control, press the Quick Start/Brake
button to see if braking position is correct. If not, adjust the trim. You may adjust the trim
while the car is running but you would have to take extra care so it does not get out of
control. (See fig 6)
8) If everything checks OK, turn your receiver off before you turn your transmitter off.
Remember that this is exactly the reverse sequence of turning the system “ON”.
Stick control fig 4
Normal
Reverse
Reverse
Reverse
Normal
Normal
Servo traveling adjustment fig 5
Reduced
Travel
Quick start/break function fig 6
FULL TRAVEL
CH1 ATV CH2
CH1 ATV CH2
Quick Start/Brake button
INSTALLATION
When installing the radio system to the model, please follow the detailed instructions for the
model kit.
A.Normal Installation (non BEC)
If you are using the regular mechanical speed control that usually comes with the model
kit, you will need both servos, and the battery harness that comes with the radio set.
Incidentally this is the installation method for the engine equipped model as well.
B.ESC installation (Electronic Speed Control)
You may wish to use an ESC in place of the mechanical speed control and throttle servo.
This will allow more precise control as well as less power consumption. Please note that
most ESC’s are already equipped with BEC so you can simply plug into channel two of
the receiver.
Installation diagram fig 7
NORMAL INSTALLATION
7.2V ~ 8.4V
E.S.C. INSTALLATION
HELPFUL HINT
A.BATTERY
Always take extra care that all the batteries in the radio set are fully charged (NiCad) or
fresh (Dry) when operating you radio. Otherwise the receiver range will substantially be
reduced and lose control thereby damaging your model and or people. When you recharge your transmitter NiCads with a charger jack, be careful of its polarity. The inner
contact should be positive (+), the outer negative (-). For your convenience, we recommend our genuine overnight charger. CG-22(220V0 or CG-25(110V).
B.ANTENNA
Both the transmitter and the receiver antenna must be fully extended when in use. Be
careful that you do not cut off the excess receiver antenna wire or bundle it. This will
severely cut down on the operating range.
C.XTAL CHANGE
When changing the frequency to another channel, make sure that you match the transmitter to the receiver channel. Also you must make sure that they are replaced with only
genuine Hitec single conversion FM xtals as not all xtal makes are compatible with each
other. Also remember that you can change frequencies only within the same frequency
band, which means you cannot change to 72MHz from 75MHz. (Also in the US, you
may not be allowed to change the transmitter xtal).
D.WATER, DUST AND FUEL
Take suitable measures to prevent water, dust and oil (fuel) from getting into the radio
system. In the event that this does happen, make sure that you clean them off thoroughly before you turn it “ON” again.
E.SERVO LINKAGE
Install your linkage rod to product the maximum freedom of movement possible with the
minimum amount of slop and friction; to check these points out, operate each servo over
its full stroke and check if the rod binds or is loose. One great item that we at Hitec have
invented is the “Jam Checker” which is uniquely designed just to detect if there are any
binds in the linkage if they are buried in the installation and cannot be detected easily.
F.POLARITY
Many a model were wasted and junked by a simple but mindless mistake such as connecting to the wrong polarity so whenever making a connection, do make sure that they
are the right polarity.
G.RACHET THROTTLE CONTROL
You may defeat the spring mechanism on the throttle stick by placing a Spring Defeat
plate (copper colored) provided on top of the gimbal inside the transmitter case.

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Create Date                     : 2002:06:06 20:50:15-07:00
Modify Date                     : 2002:08:19 09:12:51-04:00
Subject                         : Ranger 3FM
Page Count                      : 8
Creation Date                   : 2002:06:07 03:50:15Z
Mod Date                        : 2002:06:07 03:50:15Z
Producer                        : Acrobat Distiller 5.0 (Windows)
Author                          : Tony
Keywords                        : 
Metadata Date                   : 2002:06:07 03:50:15Z
Creator                         : Tony
Title                           : Ranger 3FM
Description                     : Ranger 3FM

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