RadioLink t8fb User manual

RADIOLINK T8FB
(FHSS)
INSTRUCTION MANUAL
RADIOLINK ELETRONIC LIMITED
Technical updates and additional programming examples available at:
www. radiolink.com

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INTRODUCTION
Thank you for purchasing Radiolink 2.4 GHz remote control system -- T8FB .
It can control all the fixed-wings, gliders, multicopters ,cars and boats. T8FB, with
chip TI CC2500 and the same FHSS spread spectrum of AT9S and 67 channels
pseudo random frequency sequence hopping. The control distance of T8FB is more
than 1000 meters air. Parameter setting designed applicable to both beginners and
skilled person. In order to better use remote control equipment and ensure flight safety,
please read the instructions carefully.
Suggestion: when you read this manual, please turn on the transmitter and receiver,
connect T8FB to android smart-phone APP or computer with USB cable, connect the
receiver to gyro and other related equipment, operating while reading. Please refer to
the manual or call our after-sales ([phone]) or log in BBS (such as
www.rcgroups.com) to check the issues related answer to questions if you have any
questions.
Due to unforeseen changes in production procedures, the information contained in this
manual is subject to change without notice.
More information please check our website as below:
http://www.radiolink.com
Support and Service: It is recommended to have your Radiolink equipment serviced
annually during your hobby’s “off season” to ensure safe operation.
Please feel free to browse our Enquiry for assistance in operation, use and
programming. Please be sure to regularly visit the Service and Support web site at
www.radiolink.com. This page includes extensive programming, use, set up and
safety information on the T8FB radio system and is updated regularly.
Any technical updates and manual corrections will be available on this web pages.If
you do not find the answers to your questions there, please see the end of our contact
area for information on contacting us via email for the most rapid and convenient
response.
FOR AFTER-SALES SERVICE:
Please start here for getting more service.
www.radiolink.com
Phone:[phone]
Email:[email protected]
FOR TECHNIQUE SUPPORT:
Please start here for answers to technique questions:
www.radiolink.com
Phone:[phone]
Email:[email protected]

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Note:About flying
While you are getting ready to fly, if you place your transmitter on the ground ,be sure
that the wind won’t tip it over. If it is knocked over, the throttle stick may be
accidentally moved, causing the engine to speed up. Also, damage to your transmitter
may occur.
Other than 2.4GHz system: Before operating, be sure to extend the transmitter
antenna to its full length, collapsed antenna will reduce your flying range and cause a
loss of control.It is a good idea to avoid pointing the transmitter antenna directly at the
model, since the signal is weakest in that direction.
In order to maintain complete control of your aircraft it is important that it remains
visible at all times .
Flying behind large objects such as buildings, grain bins, etc. are not suggested.
Doing so may result in the reduction of the quality of the radio frequency link to the
model.
2.4GHz system: Do not grasp the transmitter module’s antenna during flight.Doing so
may degrade the quality of the radio frequency transmission.
2.4GHz system: As with all radio frequency transmissions, the strongest area of signal
transmission is from the sides of the 8CH transmitter module's antenna. As such, the
antenna should not be pointed directly at the model.If your flying style creates this
situation,easily move the antenna to correct this situation.
Warning!!!
This product is not a toy and is not suitable for children under the age of 18.
Adults should keep the product out of the reach of children and exercise caution
when operating this product in the presence of children.
Please don't fly in the rain! Rain or moisture may enter the transmitter internal
through gaps in the antenna or joystick flight and cause your flight to instability even
out of control. If inevitable will fly in the wet weather (such as game), please be sure
to use plastic bags or waterproof cloth to cover your transmitter, please don't flight if
there is lightning.
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may
cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

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CONTENTS
PART 1. INTRODUCTION OF T8FB SYSTEM..................................... 4
1.1 Transmitter Panel Shows......................................................................... 4
1.2 T8FB remote control system........................................................................ 5
1.2.1 Transmitter.......................................................................................... 5
1.2.2 Receiver:R8EF/R8FM..............................................................................5.
1.2.3 Transmitter calibration .....................................................................8
1.3 Guidelines to mount the servos, receiver and battery..............................9
PART 2. Firmware Upgrade ..................................................................11
2.1 Firmware Introduction........................................................................11
2.2 Upgrade Introduction.....................................................................11
PART 3. T8FB Android Smartphone Parameter Setting APP
Introduction.................................................15
3.1 Configuration...........................................................................15
3.2 APP Installing.........................................................................17
3.3 The Steps Of Connection......................................................18
3.4 The Functions Introduction ...................................................................18
3.5 Setting Buttons Introduction..................................................................19
3.6 Four Interface Introduction..................................................................19
3.7 FAQ............................................................................21
PART 4Android Computer Parameter Configuration..................................25
4.1 Preparation.......................................................................................................25
4.2 Software description.....................................................................................26
4.2.1 Four Interface Introduction......................................................................26
4.2.2 BASIC MENU.................................................................................27
4.2.3 ADVACNE MENU.....................................................................29.
Part 1 INTRODUCTION OF T8FB SYSTEM

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1.1 Transmitter Panel Show:
（MODE 1）
1.2 T8FB Introduction

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1.2.1 Transmitter
1) One two-way switch, one three-way switch, two VR switches, four trimmers, two
sticks.
2) The above picture is mode1, SwB control CH5, VrB control CH6, SwA control
CH7, VrA control CH8.
3) Universal JST battery connector supports multiple batteries, include 4pcs AA
batteries or 2S to 4S LiPo battery.
4) Defaulted low battery alarm voltage can automatically match 2S and 3S LiPo
battery or 4pcs AA batteries, can setting in the T8FB configure software.
3S LiPo battery: default low voltage alarm to 11.0V automatically after detection,
you can setup low battery voltage alarm from 10.0V to 12.5V.
2S LiPo battery: default low voltage alarm to 7.3V automatically after detection,
you can setup low battery voltage alarm from 7.0V to 8.9V.
4 AA Ni-MH battery: default low voltage alarm to 5.0V automatically after
detection, you can setup low battery voltage alarm from 4.0V to 6.4V.
1.2.2 Receiver: R8EF/R8FM
Radiolink R8EF, 2.4G 8 channels receiver, S-BUS , PPM and PWM signal possible
working at the same time, use for Radiolink transmitter T8FB.
Receiver R8EF（signal type: PWM&S-BUS&PPM）
Two signal working mode:

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(1) PWM signal output working mode：
Red LED indicates PWM signal output, 8 channels Totally.
(2) S-BUS&PPM signal output working mode:
Blue/purple LED indicates SBUS&PPM signal output, 8 channels totally. SBUS
and PWM signal possible working at the same time with S-BUS&PPM signal output
working mode.
CH1 output S-BUS signal, CH2 output PPM signal, CH3 to CH8 output PWM
signal at the same time.
S-BUS&PPM and PWM signal change:

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Quick press the ID SET switch two times within 1 second, the signal is changed from
PWM to S-BUS&PPM. The red LED indicates the PWM and blue/purple indicates
S-BUS&PPM.
How to match code with transmitter:
1. Put the transmitter and the receiver close to each other within 1 meters.
2. Turn on the transmitter, then power on the R8EF.
3. There is a black button on the R8EF, press the binding button twice in two seconds
and release, receiver light start blinking, after about blinking 8 times, match code
success then receiver signal LED always on!
Specification:
1) Channels: 8 channels
2) Working voltage: 4.8-10V
3) Working current: 30mA（input voltage: 5V）
4) Size: 48.5*21*11mm
5) Weight: 7g
6) 2048 section precision, 0.5us per section, servo anti-shake rudder.
7) Control distance: about 500m ground and 1000m air, actually control distance
depends on the environment.
MINI Receiver R8FM
Radiolink R8FM, 2.4G 8 channels receiver, S-BUS and PPM signal possible working
at the same time, use for Radiolink transmitter T8FB, supper mini size, is designed for
racing drone.
S-BUS&PPM signal change:
Quick press the ID SET switch two times within 1 second, the signal is changed from
PPM to S-BUS. The red LED indicates the PPM and blue/purple indicates S-BUS.
Specification:

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1) Channels: 8 channels
2) Working voltage: 4.8-6V
3) Working current: 30mA（input voltage: 5V）
4) Size: 16.0*21.5*1.0mm
5) Weight: 2.5g
6) 2048 section precision, 0.5us per section, servo anti-shake rudder.
7) Control distance: about 500m ground and 1000m air, actually control distance
depends on the environment.
Installment of receiver antenna：
1. The antenna must be kept as straight as possible. Otherwise it will reduce the
effective range.
2. Large model aircraft may of some metal part interfering signal; in this case the
antennas should be placed at both sides of the model. Then the best RF signal
condition is obtained at any flying attitude.
3. The antennas must be kept away from conductive materials, such as metal and
carbon by at least a half inch. The coaxial part of the antennas does not need to follow
these guidelines, but do not bend it in a small radius.
4. Keep the antennas away from the motor, ESC, and other noise sources as much as
possible.
5. Press and hold the Easy Link (ID SET) one second, now the receiver starts work.
6. After all of the above steps finished, the LED indicator will turn and keep in red or
purple.
7. The receiver can be packed by sponge or foam for shocking proof when it is
installed to the model.
After all of the above steps finished, turn off the transmitter and then power it on, now
the program functions to assure it under control of transmitter with a right connection.
Attention:
The T8FB without USB upgrade port can bind to R8EF and R8FM after upgrade the
latest firmware(T8FB_FHSS_V201_a77b_20170609_33bit）
You can download the upgrade firmware from our website:
http://radiolink.com.cn/doce/t8fb-upgrade-info.html
1.2.3 Transmitter calibration:
Press rudder trimmer left and turn on transmitter at the same time, red and green LED
flashing.
1) End point calibration：

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Push two sticks from the highest position to the lowest position, and then put sticks
to the center position. (P1)
（P1）
2) Center position calibration:
Put stick to the center position, press rudder trimmer right, and then red and green
LED always on means sticks calibrate successful.
1.3 Guidelines to mount the servos, receiver and battery
• Make certain the alignment tab on the battery, switch and servo connectors is orient
correctly and ‘key’ into the corresponding notch in the receiver or connectors before
plugging them in.When unplugging connectors, never pull on the wires. Always pull
on the plastic connector instead.
• Receiver’s Antenna: In generally receiver’s antenna is longer than remote
control,don’t break or retract it,otherwise shorten the control distance.The antenna
must be kept away from conductive materials,such as metal. Please make distance test
before flying.
•If your aileron servos are too far away to plug into the receiver,use an aileron
extension cord to extend the length. Avoid plugging multiple extensions together to
obtain your desired length. If the distance is greater than 50cm or high current draw
servos are being used, use heavy servo extensions.
• Receiver Vibration and Waterproofing: the receiver contains precision electronic
part.Be sure to avoid vibration,shock,and temperature extremes.For protection, wrap
the receiver in foam rubber or other vibration-absorbing materials. It is also a good
idea to waterproof the receiver by placing it in a plastic bag and securing the open end
of the bag with a rubber band before wrapping it with foam rubber. If you accidentally
get moisture or fuel inside the receiver,you may experience intermittent operation or a
crash. If in doubt, please contact Radiolink after-sales or distributors for service.
• Always mount the servos with the supplied rubber grommets. Don’t over tighten the
screws. No part of the servo casing should contact the mounting rails, servo tray or
any part of structure. Otherwise vibration will be transmitted to the servo causing
damage of servo. Note the small numbers (1,2,3,4) molded into each arm on the servo

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arms. The number indicate how many degrees each arm is ‘off’ from 90 degrees to
correct for minute manufacturing deviations from servo to servo.
To center the servos, connect them to receiver and turn on the transmitter and receiver.
Center the trims on the transmitter, then find the arm that will be perpendicular to the
push rod when placed on the servo.
After the servos are installed, operate each servo over its full travel and check that the
push rods and servo arms don’t bind or contact each other. Also make sure the
controls do not require excess force to operate. If there is an objectionable buzzing
sound coming from a servo, there is probably too much resistance in the control. Find
and correct the problem. Even there is no servo damage, excess battery drain will
result.
•Use the mouthing plate from the receiver on/off switch as a template for the cutout
and screw
holes, mount the switch on the side of the fuselage opposite the engine exhaust, and
where it won’t be inadvertently turned on or off during handling or storage. Be certain
the switch moves without restriction and ‘snaps’ from ON to OFF, and that the cutout
allows full motion of the switch in both directions.
•When install the switch harness to the helicopter, please use the switch cover.
Generally sandwich the frame between the switch and switch cover and securely
tighten the screws. Different models might require different installations. If so, please
follow the model’s instruction manual.
• To prevent the servo lead wires from being broken by vibration during flight,
provide a slight amount of slack or extra so that the wire sticks out slightly and fasten
it at suitable points. In addition, periodically check the wire during daily maintenance.

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Part 2 Firmware Upgrade
2.1 Firmware Introduction
The latest firmware is T8FB_FHSS_V201_a77b_20170609_33bit(2017.9.26)
We will upgrade firmware according to T8FB users, new firmware will not upgrade in
this manual, you can download it from our website:
http://radiolink.com.cn/doce/t8fb-upgrade-info.html
2.2 Upgrade Steps
1. Download the divers that T8FB upgrade need from our website:
http://radiolink.com.cn/doce/t8fb-upgrade-info.html
2. Open file “T8FB”.
3. Choose COM, and click “Connect” and then turn on T8FB in 1 second.

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4. “Disconnect” will change to “Connected” and the color of word will from red to
green if connect successful.

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5. Choose “APROM” and then choose the firmware you need.

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6. Click “Start”, the progress bar will turn to green, upgrade successful if remind
“PASS”.

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PART 3. T8FB Parameters Setup Via Android Smart-phone APP

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New version T8FB that with USB upgrade port will support parameters setup via
android smart-phone APP.
3.1 Configuration
1) One USB cable for Android smart-phone
The smaller port connect to T8FB USB port and the other bigger port connect to
OTG data cable.
2) One OTG cable for Android smart-phone
The smaller port connect to smart-phone USB port

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The connection please follow this picture :

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3) Android smart-phone system requires to upgrade to version 4.0 or above.
4) The firmware of T8FB have to upgrade to version V2.0.1 or above first.
(T8FB firmware version: T8FB_FHSS_V201_a77b_20170609_33bit.hex)
(Firmware upgrade steps please follow this website:
http://radiolink.com.cn/doce/t8fbchangemodetypes.html)
Attention:This APP doesn’t support iPhone now.
3.2 APP Installing
1) Download the “RadiolinkT8FB(en).APK” software to your phone (it can
download from Radiolink website, or receive via Skype, Whatsapp, Facebook
message, Wechat, QQ and so on ), click the software to install.

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2) Click “Done” when APP have installed, you will see the T8FB parameter setting
APP on smart-phone interface, if you click “open “, the APP will open directly.
3) You can find out the installation steps as below
3.3 The Steps Of Connection
1) Turn on the transmitter T8FB at first.
2) Connect USB cable to your phone after installed the APP, it will hint if open
“Radiolink T8FB” when connection.
Attention: Different smart-phone (as OPPO R9s and so on ), you have to turn on the
OTG connection first(settings - Other settings - OTG Connection)