Suntor ST5XHPT User manual

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ST5XHPT User Manual
TX on Board RX on Ground
Contents
I. Disclaimer.................................................................................................................................................................2nd
II. Precautions for integration......................................................................................................................................3rd
III. List of in-box items..................................................................................................................................................4th
IV. Interface Definition.................................................................................................................................................6th
1. Power Cable..................................................................................................................................................... 7th
2. Bidirectional serial port................................................................................................................................... 7th
3. How to connect with fly control System......................................................................................................... 8th
4. Antenna Interface............................................................................................................................................8th
V. Operating Instructions & Steps................................................................................................................................8th
VI. Antenna Installation............................................................................................................................................. 10th
1. Multi-rotor UAV............................................................................................................................................. 10th
2. Fixed Wing UAV............................................................................................................................................. 11th
SUNTOR ELECTRONICS CO., LIMITED
I. Disclaimer
SUNTOR is the registered trademark of SUNTOR ELECTRONICS CO., LIMITED. All product names and
brands in this manual are trademarks or registered trademarks of the Company. SUNTOR
V2.0

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ELECTRONICS CO., LIMITED reserves all copyrights of the product and the manual. All the
information must not be copied or reproduced in any form without permission of SUNTOR. There
may be semantic differences between disclaimers of different languages. The Chinese version shall
prevail in Chinese mainland, while the English version shall prevail in other regions. Thank you for
purchasing SUNTOR ST5XHPT. Please use ST5XHPT according to local radio regulations. Before using,
please carefully read this disclaimer. Once the product is used, all the contents of the disclaimer will
be regarded recognized and accepted. Please install and operate the product in strictly accordance
with the requirements of this manual. SUNTOR ELECTRONICS CO., LIMITED and its affiliates will not
assume any legal responsibility for results or losses caused by improper use, installation, assembly
and modification (including the use of non-specified SUNTOR parts and accessories, such as the
radio power amplifier, antenna and SMA extension cord).
II. Precautions for integration
1) Be sure to use the parts provided by SUNTOR.
2) Reverse connecting power line positive and negative will burn the device out.
3) Before powering on please make sure the antenna are in good connection and not install or
remove the antennas with power on.
4) Given that the carbon fiber body and metal load may have shielding effects on antenna signals,
they should not be installed between the antenna and ground terminal. Keep the antenna on
board free from winding or blocking by obstacles. The antenna end should be vertically
downward without bending to prevent shortening communication distance and failure
communication.
5) Antennas on board should be kept away from other radio antennas to avoid electromagnetic
noise and interference. We recommend to make full use of data and video transmitting
function of ST5XHPT to minimize the radio devices quantity on board.
6) If using PTZ Camera, please do the PTZ self-testing firstly then connect HDMI cable.
7) HDMI cable and antenna on board may interfere with GPS. Please keep the HDMI cable and
antenna away from the GPS module and its cables.
8) Do not disassemble or modify SUNTOR ST5XHPT. Any problem during installation, contact
SUNTOR or SUNTOR local branch office.
9) Keep appropriate distances between different electronic devices during installation to minimize
the electromagnetic interference.
10) The power input is DC7-18V. We recommend the DC12V. Make sure the battery is full of
charged.
11) Before using, please make sure all cables are in good connection and all components can work
properly.

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12) After starting the product, the self-test indicators of ST5XHPT will continuously blink for 30s and
then keep bright. Only after the video from the camera shown on the display, then you can
confirm that the device work properly now.
13) Check the surrounding environment to ensure there is no other 2.4GHz devices to cause
interference.
14) If you use the Futaba remote controller, the controller should be adjusted into the French mode.
Otherwise, the video transmission performance will be serious affected
15) Adjust the Futaba controller into French mode as following steps:
16) [LINKAGE MENU]→FRQUENCY→ RTN b→ [AREA]→[FRANCE]
Or connect ST5XHPT S1 serial port with trainer interface on back side of Futaba by TTL cable. And
set the Futaba RF as OFF. Through the S1 port uplink the PPM/SBUS signal.
17) Before using, please check the power of RX and TX. If the receiver power off, transmitter on
board will lose connection.
18) Adjusting RX antenna inclination can improve the signal strength and image quality.
19) The camera should be fully charged to ensure normal video output.
20) ST5XHPT support video and duplex data communication. If the video stuck or stopped for more
than 10s. It means the radio signal is weakened or the radio channel is narrowed. In this case,
the aircraft need to fly back to short the distance between TX and RX. Otherwise, the TX will
lose connection.
21) Please use good electromagnetic shielding accessories(HDMI Cable, HD display and so on)
Notes: Improper operation of ST5XHPT may cause personal injury or damage to properties. Please
pay high attention to operation safety.
III. List of in-box items
On board x1
Ground terminal x1

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On board antenna x1
Ground antenna x1
DC power cable x4
HDMI video cable x2
TTL Cable x2
USB TTL serial port x2
TTL Cable for Fly control system x 1

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IV. Interface Definition
A: HDMI mini TX or RX*1
B: DC7~18V Input*1 (We recommend DC12V)
C: SMA Antenna Interface*1
D: TTL Serial Port*1
E: DC7~18V Input*1 (We recommend DC12V)
Note:
1. There are two power input interface. They have same function. Any one is ok for power input but
we recommend the interface E for power input
2. HDMI Interface: Mini HDMI
(Port with camera marker is video input for transmitter, Port with display marker is video output for
receiver)

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1. Power Cable
A. DC Socket 5.5-2.1mm
B. Plug：4P GH1.25mm
2. Bidirectional serial port
TTL Cable
A. JST SH1.0mm 5P
B. Dupont Connectors
No
Definition
Cable Color
1
7-18V
Red
2
7-18V
Red
3
GND
White
4
GND
White
Dupont NO
Definition
Cable Color
1
TXD (TTL232)
White
2
RXD (TTL232)
Grey
3
GND
Black
SH NO
Definition
Cable Color
1
TXD
White
2
RXD
Grey
3
3.3V
Reserved interface
4
GND
Green
5
Audio
Reserved interface
(on ground)
A
B

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3. How to connect with fly control System
On board
If your Auto pilot system is TTL interface for data. You
can use the TTL cable to connect the transmitter’s S1
port with auto pilot system.
If your auto pilot system is RS232 interface for
data, with the cable’s definition, you can make a
RS232 cable to do the connection with your auto
pilot system.
On Ground
For Receiver, to connect with GCS
you can use the TTL to USB cable.
4. Antenna Interface
SAM internal thread female
V. Operating Instructions & Steps
1. Make TX and RX and
accessories ready.
Besides the whole equipment we
supply, you also need to make
sure the video source, display
and power ready before
operating.

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2. Connection
Make the power cable, HDMI Cable, serial port
cable and antenna in good connection.
(the serial port cable is for data links)
3. Power on
After checking all the connections are in good condition, turn on the
the video source, LCD display, transmitter and receiver. The PWR
indicator will bright and the whole system starts work.
4. The status of all indicators during starting
After powering on, the red and green lights will
bright. When the device normally begin work and
the video signal normally transmitting, the red
light will keep bright and green one will blink
continuously. If the video signal not normally
transmitting, the red light also keep bright but the
green light will intermittently blink(About
1-second interval)
Note: If after 3minutes there is still no any video
show on display and the green lights no longer intermittently blink, please check the following
parts
1. Power( changing a new battery and make the power input is DC12V)
2. HDMI Cable Compatibility: If the video is not standard HDMI video stream, the video will not
be recognized by the device. Then you need to change
the camera. At present, Gopro, Sony and other popular
Camera brand have very good compatibility with our
device.
3. After the receiver powered, the display right bottom
corner will show “Power On” letters.

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5. Boot up successfully
After successfully connection, the display will smoothly show the video.
Remark: In UAV application, please make the connection successfully and the video show on ground station
smoothly then fly the UAV. About how to install the antenna on UAV please refer the following description.
VI. Antenna Installation
1. Multi-rotor UAV
1) Using SMA metal shielded semi-flexible blue feeder cable provided by SUNTOR to connect the
TX SMA port with antenna.
2) The antenna needs to be mounted vertically downwards.
3) The best installation location is
UAV ground bracket. With
antenna inside, the bracket can
only use fiberglass material.
4) If the ground bracket is
automatically retracted, the
antenna can be installed in the
lower part of the aircraft.
5) If the antenna is intercepted by
the camera or pod or the
loudspeaker, the video on RX will
appear image stuck or mosaic.
SMA Feeder Cable

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2. Fixed Wing UAV
1) Using SMA metal shielded semi-flexible blue feeder cable provided by SUNTOR to connect the
TX SMA port with antenna.
2) The antenna needs to be mounted vertically downwards.
3) The best installation position is center of UAV tail, prominent outside the body and vertical
downward.
4) The second optional mounting position is located below the wing and body joints, vertical
down, as far as possible away from the wing but near the machine abdomen, protruding below
the abdomen level.

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