T460-HD UAV Transmitter
User Manual
Shenzhen Keweitai Enterprise Development Co., Ltd.
T460-HD UAV Transmitter
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About This Manual
This user manual is only used as a guide. Product images and description only for reference
purpose, detailed information is in accordant with the final product. This User Manual is subject
to change without prior notice. You can visit http://en.keweitai.com for the latest updated version.
Please read this user's manual carefully before using it.
Keweitai provide a full technical support to customers, users can contact the local office and also
the company headquarters directly.
Trademark Statement
Is the registered trademark of Keweitai.
Other trademark involved in this manual owned by their respective owner.
Any part of this manual, including text, images, graphics, etc. are all attributable to Shenzhen
Keweitai Enterprise Development Co., Ltd. (hereinafter referred to as: the company or Keweitai).
Any form of unauthorized excerpt, reproduction or modification by any institution or individual is
prohibited without Keweitai's written permission.
Shenzhen Keweitai Enterprise Development Co., Ltd.
Address: 2F, Building C3, Hengfeng Industrial Area, Baoan District, Shenzhen.
Zip code: 518126 http://en.keweitai.com
Tel: 0755-27364977 Fax: 0755-27364601
Customer service email: mail@keweitai.com
Copyright © 2016 Shenzhen Keweitai Enterprise Development Co., Ltd.
All rights reserved.
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Content
1 Functions & Features…………………………………………………………………………………………….……4
2 Product Dimensions………………………………………………………………………………………….….….4
2.1 Transmitter Dimension………………………………………………………………………………….……4
2.2 Interface Definition
3 Hardware installation and attention………………………………………………………..…..……….…..6
3.1 Power Supply………………………………………………………………………………..…………………..…6
3.2 Antenna Selection……………………………………………………………………………..…………….…..6
3.3 Environment……………………………………………………………………………………..…………….…..6
3.4 Remarks ………………………………………………………………………………………………………..……6
3.5 Accessories
4 In the Box
5 The frequency adjuster user operation
5.1 LCD modules …………………………………………………………………………………………………….…7
5.2 LCD handing precautions …………………………………………………………………..…………..……7
……………………………………………………………………………………………………...……6
……………………………………………………………………………………………………………..……7
……………………………………………………………………………….…………...…5
……………………………………………………...…………..……7
5.3 Detailed Operation Table of Display Board……………………………………….…………….……7
5.4 Detailed Configuration Instructions of Tx Module…………………………………………..……8
6 Technical Parameters
7 Fault Detection
…………………………………………………………………….……………………………….……17
……………………………………………………………………………………………...…16
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1 Functions & Features
AES encrypted video transmission
Aluminum alloy casing with good shock resistance
External digital frequency controller; lithium battery replaceable
Mobile video transmission in NLOS (No line of sight) condition
COFDM modulation and H.264 compression for stable and high-quality audio and video
signal
Support HDMI signal input
Multiple bandwidth adjustable, 1.5/2/4/6/7/8MHz
Video input PAL/NTSC optional (PAL as default)
2 Product Dimensions
2.1 Transmitter Dimension
Dimension（mm）
Weight：56g
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Pin
Definition
Function
Remarks
1
VIN
Power input
External power input
2
GND
Power input ground
External power input ground
Pin
Definition
Function
Remarks
1
VIN
Power input
External DC7V~16V power input
2
GND
Power input ground
External power input ground
2.2 Interface Definition
2.2.1 RF OUT
RF output interface, external connecting to antenna or amplifier. Interface mode is SMA.
2.2.2 HDMI input interface
HDMI signal input interface. Interface mode is MINI-HDMI（HDMI C Type）.
2.2.3 4-core socket
From left, the first needle is the first pin (leg), the second needle is the second pin (leg) , the
interface definition as below:
2.2.4 5-core socket
From left, the first needle is the first pin (leg); the second needle is the second pin (leg), the
interface definition as below:
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3
TX1
Serial configuration T
External digital frequency modulator R
4
RX1
Serial configuration R
External digital frequency modulator T
3 Hardware installation and attention
NOTICE: The device should be first connected to the antenna and then turn on the power
to begin to work, while the power should be switch off before dismantle the system. If not, the
system will be broken.
3.1 Power Supply
Before device is powered on, ensure the transmitter has connected with antennas or load to
avoid short-circuit or open circuit.
3.2 Antenna Selection
Select antennas with a 2400~2483 MHz frequency range and 5dBi connect with transmitter
directly.
3.3 Environment
The device is dust-proof and water-proof, try to avoid getting close to radiator, and do not
put in the high temperatures place for long time. Electromagnetic environment testing is
recommended before use to guarantee there is no channel interference.
3.4 Remarks
All parameters have been set for default. Any adjustment is not allowed without good
understand of this manual.
3.5 Accessories
Digital tuner: Used to change the work frequency and parameters of the transmitter, more
details in chapter 5.
Power line: Used to supply power to transmitter.
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T460 Control
V5.0-2012.11.01
ESC
4 In the Box
1 X Transmitter
1X User Manual
1X Digital Frequency Modulator
1X Power Line
5 The frequency adjuster user operation
5.1 LCD modules
LCD modules are combined with LCD display and three buttons. From the left to right there
are menu button , up key , down key and cancel button ESC, 4-core plug interface.
NOTE: make sure there is an antenna or load in the antenna interface BEFORE turn on the
transmitter or the system broken.
5.2 LCD handing precautions
The transmitter is in default setting before shipping out from the factory. If there is no
special requirement, please do not modify. For more technical question, please contact with our
local agent or our sales engineer directly.
5.3 Detailed Operation Table of Display Board
5.3.1 LCD Display Initial Interface
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Fre :2430MHz HDMI OK
Frequency :
2430MHz
Fre :2440MHz
The device operational procedure name and version are different according to the
production date.
5.3.2 Main menu interface
Fre: 2400MHz, the current video transmitting frequency;
HDMI OK: the current video source and its lockout state.
5.3.3 Frequency Setting
Press MENU under main menu interface to enter frequency setting:
Press UP and DOWN to change the frequency. For instance: from 2400MHz to 2410MHz,
press UP with 1MHz step and then press MENU to store the change; return to the main menu
interface, until now the frequency adjustment is finished.
The current transmitter frequency is adjusted as 2410 MHz.
5.3.4 Exit from Menu
Press ESC under any sub-menu to return to the main menu without storing the current menu
settings
5.4 Detailed Configuration Instructions of Tx Module
5.4.1 Power Output
Long press UP about 5s under the interface above to enter the transmitter power
output setting:
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Attenuation：
3
Bandwidth：
2MHz
Mode：
QPSK
FEC：
It shows the current adjustable attenuator with range 0~15 and default setting 1; IL: the
number adds 1, it means 1db attenuator increased, the power output get smaller; the larger
number is, the smaller power output gets while the smaller number is, the larger power output
gets, in this way, the power output is maximum when the number is 0 and power output
minimum when the number is 15.
5.4.2 Bandwidth
Press MENU under the above interface to store the configured attenuator and then
to enter the bandwidth setting:
It shows the current bandwidth that could change by UP and DOWN with options:
1/1.5/2/4/6/7/8MHz.
Note: 1MHz is not available now.
5.4.3 Modulation
Press MENU under the above interface to store the bandwidth mode and enter
modulation setting:
Press UP and DOWN to change the transmitter modulation under the current
interface with QPSK, 16QAM and 64QAM three modes optional.
5.4.4 FEC
Press MENU under the above interface to enter transmitter FEC setting:
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1/2
GUI：
1/32
FFT：
2K
Video Input：
HDMI
The transmitter FEC could be changed by UP or DOWN with 1/2, 2/3, 3/4, 5/6 and
7/8 five modes optional.
5.4.5 GUI
Press MENU to store the adjusted FEC and enter the transmitter GUI setting:
The transmitter GUI could be changed under the current interface by UP and DOWN
with 1/32, 1/16, 1/8 and 1/4 four modes optional.
5.4.6 FFT
Press MENU to store the adjusted GUI under the above interface to enter FFT setting:
The transmitter FFT could be adjusted by UP or DOWN under the current interface
with 2K and 8K two modes optional.
Note: 8K is not available now.
5.4.7 Video Input
Press MENU to store the configured FFT and enter the video input:
5.4.8 Audio Input
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The transmitter video input could be adjusted under the current interface by UP or
DOWN with HDMI, CVBS, SDI and AUTO four modes optional.
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Audio Input：
Stereo
Mic_Input：
On manual
Audio_BitRate：
384 Kbps
Press MENU to store the video input mode and enter audio input setting:
The transmitter audio input could be adjusted by UP or DOWN with stereo and
single-track two modes optional.
5.4.9 MIC Input
Press MENU under the above interface to store the adjusted parameter and enter
MIC input:
There are three modes optional under such interface:
On manual: manual mode. MIC and right channel are all in effect; MIC gain could be
manually adjusted with range {0, 40} dB and 0.5dB step, right channel gain 0dB.
OFF: left channel and right channel are in effect with 0dB gain.
On auto: MIC and right channel are all in channel. MIC maximum gain 12dB while right
channel gain 0dB.
5.4.10 Audio Bitrate
Press MENU to store the configured parameter under the above interface and enter
the audio bitrate setting:
It shows the current audio input bitrate, which is only readable under AUTO mode,
adjustable by UP and DOWN under Manual Mode. The single-track audio bitrate range: 32kbps,
48kbps, 56kbps, 64kbps, 80kbps, 96kbps, 112kbps, 128kbps, 160kbps and 192kbps; dual track
bitrate range: 64kbps, 96kbps, 112kbps, 128kbps, 160kbps, 192kbps, 224kbps, 256kbps, 320kbps
and 384kbps.
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Video_BitRate：
4780 Kbps
Video_Std：
PAL_BGHID
Data_Baudrate：
9600
Fre :2430MHz HDMI OK
5.4.11 Video Input Bitrate
Press MENU to store the configured parameter under the above interface and enter
the video input bitrate setting:
It shows the current video bitrate which is only readable under AUTO mode and adjustable
by UP and DOWN under MANUAL mode.
5.4.12 Video Standard
Press MENU to store the configured parameter under the above interface and enter
the video standard setting:
It will show the current video format which is only readable; the device could not read such
parameter if the video source set as AUTO.
5.4.13 Data Baudrate
Press MENU to store the configured parameter under the above interface and enter
the data baudrate setting:
It shows the current data baudrate which could be adjusted by UP and DOWN.
5.4.14 Return to Main Menu
Press MENU to store the configured data status and return to main menu:
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UpFrequency:
350MHz
DownFrequency:
340MHz
BitRate_Set：
Auto
5.4.15 Transmitter Upper Frequency
Long press ESC about 5s under the above interface to enter transmitter upper frequency
setting:
The transmitter upper frequency could be adjusted by UP or DOWN with step 1MHz
and range 100-3000MHz.
5.4.16 Transmitter Down Frequency
Press MENU to store the configured parameter under the above interface and enter
the transmitter down frequency setting:
The transmitter down frequency could be adjusted by UP or DOWN with step 1MHz
and range 100-3000MHz.
5.4.17 A/V Bitrate
Press MENU to store the configured parameter under the above interface and enter
the A/V bitrate setting:
bitrate adjustable under AUTO mode while and configurable under MANUAL mode (AUTO mode
is suggested).
5.4.18 Device ID:
It shows the current device data bitrate with AUTO and MANUAL two modes optional;
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Device_ID:
0
Version:
1.1/1.2
Serial Number
A0BC4569
InnerPacked
YES
Press MENU to store the configured parameter under the above interface and enter
the device ID setting:
It shows the current device ID with 0~255 optional;
5.4.19 Device Version
Press MENU to store the configured parameter under the above interface and enter
the device version setting:
1.1 is the software version while 1.2 is the hardware version.
5.4.20 Device Serial Number
Press MENU to enter serial number display interface:
This is the only factory number of the device.
5.4.21 Protocol Package
Press MENU to enter data package under the above interface to select whether to
precede data KTSPD protocol package.
Note: it has been set well before delivery ; any adjustment is not suggested.
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HD_flag
1
CPU_Temperature：
37℃
Encrypt :
AES256
5.4.22 HD Authorization
Press MENU to enter device HD authorized sign display interface:
0: the device supports only SD mode without wide band authorization;
1: the device supports HD/SD modes.
5.4.23 CPU Temperature
Press MENU to enter the device CPU temperature display interface:
5.4.24 Return to Main Menu
Press MENU to return to main menu again.
Note: press ESC under any sub-menu to directly return to main menu without storing the
current settings.
5.4.25 Adjuster encryption Settings
Press UP and DOWN for 5 seconds to enter the adjuster encryption settings：
The transmitter encryption could be adjusted by UP or DOWN with OFF(No
encryption)；AES128，AES256，three modes optional.
5.4.26 Password input
Choose encryption mode to enter the password input setting as below:
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Password :
-
SN
PARAMETER NAME
PARAMETER INDEX
Power
Working voltage (V)
DC7V-16.8V
Working current (A)
≤0.6A@DC12.5V
RF
Frequency range
2.42-2.44GHz
Channel center frequency
MHz
2.43GHz
Center frequency shift
±20Hz
RF bandwidth MHz
1.5/2/3MHz，4MHz，6/7/8MHz
Output power dBm
≥22dBm/Attenuation=1
Power adjustable range
15dB
Password operation method is as follows:
1. Press up and down to change a code, range "0 to 9, a to z, A to Z", waiting for a
second when getting the target number, then cursor "_" will jump to the next, and then continue
the same operation；
2. After setting, press to store. For example, setting password “123456”, just input
the "123456 _" and press to store.Password can be set maximum 16 digits.
3.If incorrectly setting and want to change the last code, press ESC to backspace.
5.4.27 Return to the main menu interface
press to return to the main menu interface.
Note: press ESC under any sub-menu to directly return to main menu without storing the
current settings.
6 Technical Parameters
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C/N
≥28dB @ 22dBm
Spurious emission
≤-36dBm(outside the range of carrier center frequency
fc±10MHz)
Modulation
COFDM
Constellation
QPSK，16QAM，64QAM Optional
FEC
1/2， 2/3， 3/4， 5/6， 7/8 Optional
Guard interval
1/4， 1/8， 1/16， 1/32 Optional
HDMI
Video input format
PAL/NTSC
Encoding format
H.264
Video input interface
Micro HDMI interface
HDMI
HDMI 1.3 Versions, support HDCP protocol
Audio coding standard
ISO/IEC11172-3 MPEG-1、ISO/IEC13818-3 MPEG-2（Layer I&II)
Video Resolution
1920×1080i@60Hz/50Hz and 1920×1080p@30Hz downward
compatibility
Video rate
500kbps-16.68Mbps
Interface
RS232 control interface
Standard RS232 level
Fault
Solution
Receiver cannot receive image
or sound
1. Verify that the receiver is properly cabled and
powered on.
2. Verify all the cable connection and antenna has been
set correctly and if the antenna terminal is normal.
3. The location of transmitter is in the effective range of
radio frequency.
4. Verify that the transmitter works normally.
5. Check if there is the same-frequency signals
interference.
6. Check whether the receiver at the same frequency as
7 Fault Detection
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transmitter.
Receiver cannot receive image,
but sound is normal.
1. Verify that the video cable is properly cabled between
TV and recorder.
Receiver cannot receive sound
or noise, but image is normal.
1. Verify that the audio cable is properly cabled.
2. Verify that the transmitter properly connects with
audio output.
3. Verify the transmitter front-end has pickup device
(MIC)
Image continued, then pause
and black screen, finally be
normal
1. The signal is bad, it is normal.
2. Verify if there is interphone or broadcasting station
interruption.
Image is black, sometimes
appear flashing horizontal
stripes.
1. Verify that the video cable and interface is properly
cabled between transmitter and camera.
2. Check if shielded wire of video-out cable is normal.
Images show green or blurred
screen color-block
1. Video connector of transmitter come off, fixed it.
Coverage suddenly become
narrower
1. Verify transmitter module works normally.
2. Verify antenna connected normally between
transmitter and receiver.
3. Verify battery or voltage of power switch of
transmitter module works normally.
4. Verify power amplifier works normally.
5. Check if there is the same-frequency signals
interference.
Point-point transmitting, black
images repeated in a certain
period
1. Special Situation for some type of receiver, caused by
environmental conditions change. It is normal.
Narrow coverage and short
1. Check the antenna installation site and increase the
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distance transmission
height of the receiving antenna.
There are images and sounds,
but the image is blurred
1. Ensure the camera focus is accurate.
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FCC statements:
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.
NOTE: The manufacturer is not responsible for any radio or TV interference caused
by unauthorized modifications or changes to this equipment. Such modifications or
changes 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.
Federal Communication Commission (FCC) Radiation Exposure Statement
When using the product, maintain a distance of 20cm from the body to ensure
compliance with RF exposure requirements.
Note: Max. gain of the approved antenna is 5dBi.
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