FrSky Electronic D8TD8R 2.4GHz Radio System User Manual

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Document ID	1389854
Application ID	Uc2ChkyYeDoKyK9mtObrEA==
Document Description	user manual
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Document Type	User Manual
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Filesize	10.02kB (125257 bits)
Date Submitted	2010-12-13 00:00:00
Date Available	2010-12-13 00:00:00
Creation Date	2010-06-12 13:08:09
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Document Title	Instruction manual of 2.4G two way communication system-aa.doc
Document Creator	pdfFactory Pro www.fineprint.cn
Document Author:	Administrator

Manual of Two-Way Radio System
www.FrSky-rc.com P1of7
2.4GHz Two-Way Radio System
Manual of Two-Way Radio System
www.FrSky-rc.com P2of7
f)
Very smooth servo movement.
g)
Alarm on events of receiver (low battery voltages, poor reception,
etc.)
1.
Introduction:
h) Error-free link, by using 48bits CRC algorithm.
The Two-way Radio System developed by FrSky provides an additional
i)
Low power consumption.
return link that would be used for monitoring the Rx’s voltage, temperature,
j)
True two-antenna diversity.
location, speed and so on.
k)
Firmware upgradable.
2.
Overviews
4.
2.1
Transmitter modules:
a)
Two way communication between receiver and transmitter
b)
Receiver is able to accept 2 analog inputs, which can be used to monitor
a)
Model: DFT
Function of Two Way communication
Compatible with the following transmitters:
battery voltage, temperature sensor, etc., and transfer them to
Futaba: 3PM, 3PK, 7U, 8U, 8J, 9C, 9Z, 10C, FN series, T10C, FC-18,
transmitter. Users can set the Alarm Point of these analog voltages, when
FC-28.
exceed or below these points, sound alarm is presented.
Hitec: Optic 6, Eclipse 7, Prism 7.
c)
Receiver is able to accept serial data streams from simple 3-wire RS232
port, such information as GPS, altitude, and user developed data can be
WFLY: WFT09, WFT08.
b)
transferred to Tx without error, and presented at the RS232 port on the
Model: DJT
Tx.
Compatible with the following transmitters:
JR: 347/388/783/U8/PCM10/PCM10S/PCM10SX/
PCM10IIS/8103/J9303/MX-22/MX-24S/PX/9XII.
2.2 Receiver module:
a)
b)
5.
Specifications
5.1
Receiver specifications:
Model: D8R, D8RHV
Model: D8R
Compatible with FrSky Two Way module DFT/DJT.
Weight: 16.2g
Model: V8R, V8RHV, V8R7, V8R7HV, V8R4
Dimension: 54*27*17mm
V8 receivers work with DFT/DJT, just in receive-only mode.
Operating Voltage Range: 4.0V-7.2V
Operating Current: 100mA
3.
Features
a) Advanced Continuous Channel Shifting Technology (ACCST
SYSTEM) achieves high reliable link in interference
rich LLC
FinePrint Software,
16
Napier
Lane
environments.
San Francisco, CA 94133
b) Easy to bind and instant link-up.
Tel: 415-989-2722
Fax: 209-821-7869
c) Excellent reboot times.
www.fineprint.com
d) All channels failsafe.
Quick response.
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Specified Range: 1.5km (Ground Range)
Resolution: 11bit (3072)
Latency: 22ms
Number of Channels: 8CH
Analog voltage: 0~3.3V
5.2
Transmitter module specifications:
Model: DFT, DJT
Manual of Two-Way Radio System
www.FrSky-rc.com P3of7
Manual of Two-Way Radio System
www.FrSky-rc.com P4of7
Operating Voltage Range: 6.0V-13.0V
to go around solid obstacles is weaker than 72 or 36 MHz. So the antennas
Operating Current: 50mA
must avoid objects with high conductivity, such as metal parts, servos, ESC’s,
Output Power: 60mW
battery packs, wires, and carbon fiber structures. If possible put the tip of the
Resolution: 11bit (3072)
antennas outside of the fuselage for maximum reception.
Important!
The effective range of control refers to the distance between the
6.1.3
transmitter and the receiver clear of obstruction. All data was tested and
verified by FrSky.
Receiver and Transmitter Setup Instructions:
Follow the steps below to properly set up your system.
a) Turn your FUTABA or JR transmitter on and switch it to PPM mode, power
However this is not guaranteed due to many factors such as the flying
off the TX.
environment and the weather, which can greatly affect the effective range of
b) Check the working mode of the Tx module.
control.
c) Turn the transmitter on while holding the programming button. Release it
It is extremely important to range check your models prior to
a few seconds later. The RED LED on the transmitter module will flash
each flying session!
indicating the transmitter is ready to bind the receivers.
d) Connect the battery to the receiver while holding the receiver’s button.
6.
How To Use
The LED on the receiver will flash indicating the binding process is
6.1
Setup
complete. Turn off the receiver.
6.1.1
Installation of the transmitting module:
e) Turn off the transmitter and receiver to finish the binding procedure.
a) Remove the original transmitting module.
f)
b) Put the FrSky 2.4GHz transmitter module into the module port of your RC
g) Connect the battery to the receiver, the Green LED on the receiver will
transmitter and screw on the transmitting antenna.
Turn on the transmitter.
indicate the receiver is receiving commands from the transmitter.
c) Check the MODE switch to its corresponding position.
Mode
Switch 1
Switch 2
Mode
OFF
OFF
Two-way Mode
OFF
ON
V8 Mode
ON
OFF
Not Defined
ON
ON
Firmware Upgrade
After the steps above are completed, both the transmitter and receiver are
ready to be used.
6.2 Range check
For safe operation, it is necessary to perform pre-flight range check.
Caution must be paid when the units in the environment of metal fences,
d) Turn the transmitter power on and check the LED status on the module.
concrete buildings, or rows of trees. Loss of signal may be experienced.
6.1.2
Perform a range check as follows (Note: this would be done with the
Installation of receivers:
The D8R receiver incorporates two separate antennas which enable them
to receive the radio signal at two different locations. please make sure that the
receiver installed in the model):
a)
ground; for example a wooden bench.
two antennas be apart placed and 90 degrees crossed.
Please note:
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As the wave
length of 2.4GHz
shorter than older
RC systems, its ability
Place the model at least two feet (60cm) above non-metal contaminated
b)
Place the receiver’s antenna apart. Do NOT let the antenna touch the
ground.
Manual of Two-Way Radio System
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Manual of Two-Way Radio System
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c)
Place the antenna of the transmitter in a vertical position.
Yellow (General): one Beep
d)
Turn on the transmitter and receiver.
Green: No Beep
e)
To enter Range Check Mode, press and hold the “F/S Range” button of the
Alarm sourced from:
transmitter for 4 second, the RED LED of the transmitter module will be
-Rx interface 1: Analog Port 1 on Rx;
turned off, the effective distance will be decreased to 1/30.
-Rx interface 2: Analog Port 2 on Rx;
Walk away from the model while simultaneously operating the controls on
-Rx interface 3: RSSI of Rx;
the transmitter, confirm that all controls are completely and correctly
Note: The alarm threshold of Rx interface 1 and 2 could be set by
f)
g)
operational at least 30 meters away.
user. Two alarm thresholds and three levels alarm state are available
Press the “F/S Range” button for 1S-4S, the transmitter will exit Range
for both of Rx interface 1 and 2.
Check Mode.
Safety range indicator
And the RSSI alarm setting is default by factory.
9.2 Pins Definition:
The Pin definition on receiver and Tx module:
The Two-Way Radio System has a feature to show the RSSI (Received Signal
It should be noted that the 3.3V voltage only have a limited driving
Strength Indication) of the receiver. When the RSSI is low, the Tx module would give out
three types of alarm.
current (1~10mA), should not be used for driving a MPU.
Red: The receiver is very far from the Tx.
Orange: The receiver is sound, but would be far from Tx.
RXD
+5V
GND
RXD
Input to Tx module
Yello: The receiver is sound,
AD2
×
GND
TXD
Output from Tx module
Green: The receiver is OK.
AD1
×
GND
+5V
Not regulated voltage
GND
Ground
Note: Due to many environment factors, there may be casual alarm.
RXD: input to receiver, RS232 level
Failsafe
The receiver integrates the failsafe function for all channels.
AD2: Voltage: max 3.3V
AD1: Voltage: max 3.3V
To set failsafe positions, press briefly(less then 1 second) the “F/S
Range” button of the Receiver, the Tx module will make a long “beep”
Pins Definition at Rx
Pins Definition at Tx
indicating the failsafe position is remembered by the receiver.
10
Alarm operation
9.1 Alarm states
Tx module monitors the state of receiver and notify user by audible
alarm.
LED Status:
10.1 LED status on Transmitter module:
Red LED on and Green LED flashing: Working Mode.
Red LED off and Green LED flashing: Range Check Mode.
Red LED flashing: Binding Mode.
The alarm state is made a distinction between three levels:
Red (Highest): constant three Beeps
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(Medium): constant
Beeps
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10.2 LED status on Receiver:
Red LED on and Green LED glooming: Working Mode.
Manual of Two-Way Radio System
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Red LED flashing and Green LED off: No Signal.
Red LED flashing and Green LED on: Binding OK.
11
Firmware Upgrade
Frsky have developed a machanism of firmware upgrade. With it, user
would like to upgrade to new version of software when available. And the
Two-Way Radios System is supported by this machanism.
Steps are followed:
a)
Set module to Upgrade Mode.
b)
Connect the module to PC through a RS232 cable.
c)
Start Upgrade software on PC.
d)
Select file and corresponding port.
e)
After the Serial No. is got, press Download.
f)
After the progress bar reached 100%, the software of the module is
updated.
* For more information, please kindly refer to the Two Way
Protocol.
12
Contact Information
Sales: Mr. Jonathan Zhou
E-mail: jonathanfreesky@gmail.com
Mobile: +86-1525-1608-252
MSN: jonathanfreesky@hotmail.com
Skype: jonathanfreesky
Sales: Ms. Eva Liu
E-mail: evafrsky@gmail.com
Mobile: +86-1358-5022-162
MSN: liuyunjieeva@hotmail.com
Skype: evaliu0409
Technical support:
E-mail: sales4tech@gmail.com
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FCC STATEMENT
1. 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.
(2) This device must accept any interference received, including interference that may cause undesired operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue.
Device types D8T (FCC ID: XYFD8TD8R) has also been tested against this
SAR limit. The highest SAR value reported under this standard during product
certification for use on the body is 1.408 W/kg.

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PDF Version                     : 1.2
Linearized                      : No
Title                           : Instruction manual of 2.4G two way communication system-aa.doc
Author                          : Administrator
Creator                         : pdfFactory Pro www.fineprint.cn
Producer                        : pdfFactory Pro 3.17 (Windows XP Professional Chinese)
Create Date                     : 2010:06:12 13:08:09+08:00
Page Count                      : 5

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