CVW BeamLink-Duo Plus User manual

Version: 1.0
2021.12.01
BeamLink-Duo Plus
USER MANUAL
This user manual applies to:
Transmitter: 7060*2
Receiver: 3062*1
2-Channel Wireless Video Transmission System
Full HD
High Definition
Band
5GHz
Range
1km
Ultra Low
Latency
2
Channel
Video
Streaming
IP
SHENZHEN CRYSTAL VIDEO TECHNOLOGY CO.,LTD
E-mail: [e-mail]
Post code：518057
Tel: [phone]
www.cv-hd.com
Facebook:@crystalvideowireless Instagram: cvwtechnology
ADD: Unit 05-06, Floor 24, Changhong Science & Technology Mansion, Keji 12th Road South,
High-tech Industrial Park, Nanshan District, Shenzhen, P.R. China

About the User Manual 02
Product Overview
Packing List
02
04
Product Highlights
05
OLED Display 09
Transmitter 05
07
02
Interfaces and Buttons
Caution 01
System Connectivity Diagram 03
Receiver
OLED Display of Transmitter 09
OLED Display of Receiver 10
Transmission Distance 12
Factors to Influence Distance
Transmission Distance and Gain Mode Selection
12
12
17
Connection
18
Power Supply and Startup
18
20
Paring
Channel Switch
22
Low Gain Mode and High Gain Mode
23
23
24
Tally Function Instructions
Tally Light Output Interface
RS232/RS422 Transparent Transmission
Product Installation 13
13
Installation of Transmitter
RTSP Streaming Mode Operation 25
Extend the Transmission 26
26
26
Introduction to Panel Antenna
Panel Antenna Usage
Video Parameters Settings 27
Upgrade
Product Specification
Important Reminders
29
32
33
15
Installation of Receiver
Product Operation 17
Installation Height and Interval Distance
Gain Mode
Channel Settings
33
33
33
Environmental Interference
Cable Connection
Installation of Product and Antenna
34
34
34
Battery Duration 35
Troubleshooting 35
Channel Scanning Function 21
Contents

Product Overview
BeamLink-Duo Plus is a multi-channel wireless video transmission system based on a
5GHz band that supports 2-channel wireless video and audio transmission, Tally, and
pan-tilt-zoom (PTZ) camera control, with video resolution up to 1080p/60Hz. It is widely
used in live streaming, TV and filming, multimedia education, etc.
Product Highlights
Two channels of transmission only occupy one wireless channel
Supports simultaneous two-channel video and audio signals transmission, and each
video channel’s highest resolution can reach 1080p/60Hz. These channels use the
same wireless channel, greatly saving spectrum resources.
High-quality and low-latency video frame
Supports HD-SDI & 3G-SDI input and output, supports HDMI full HD input and output,
highest resolution can reach 1080p/60Hz. Compared with H.264 technology, H.265
technology offers higher color reproduction, showcasing the image more colorful.
4* 4 MIMO and Beamforming technologies make the wireless beams more concentrated,
signal-to-noise ratio higher, which result in a farther transmission distance and a stronger
interference immunity.
01 02
This instruction manual provides a detailed introduction to this product’s specifications
and an explanation of its interfaces, usage, reminders, and a troubleshooting guide.
Before using this product, please carefully read this instruction manual. If you have any
questions or concerns while using this product, please contact us or our suppliers as
soon as possible.
Caution
* Avoid exposing this product to direct sunlight for time or using it in dusted long
places
* You must use this product within its temperature and humidity range.
Thank you for purchasing CVW’s wireless HD video transmission system.
Before using this product, please carefully read the following reminders.
* Avoid using this product when it is exposed to vibration and a strong magnetic field.
* Avoid contact of conductive materials with the interior of the product.
* Do not open this product’s enclosure without guidance from a professional at
our company.
About the User Manual
Beamforming

03 04
Packing List
Important Reminders:
* All the transmitters come with an NP-F battery holder and are preinstalled with a
V-mount connector; the receiver is preinstalled with a battery slot and V-mount
connector.
* The transmitter can be attached to the camera handpiece or handle area via magic arm.
* The receiver can be fixed on the light stand or tripod via 1/4 or 3/8 screw hole.
System Connectivity Diagram
BeamLink-Duo Plus consists of 2 transmitters and 1 receiver. All transmitters support
one HDMI and one SDI input. The receiver support 2 HDMI and 2 SDI outputs. It not
only can control Tally, RS232/RS422-enabled functions like camera control, but also
can do implement RTSP streaming via LAN port. See the diagram below:
Point-to-Point Mode and RTSP Streaming Mode
The system supports point-to-point mode and RTSP streaming mode working
simultaneously, which means that HDMI, SDI, and LAN ports can output video
signals at the same time. In so doing, this solution can be widely applied to
different scenarios.
RS232/422 Transparent Transmission
The RS232/422 port can support the pan-tilt-zoom (PTZ) camera control.
* If you need Tally function, please contact our sales staff and provide them with your
switch console interface’s model and definition to make customization more convenient.
* If you need RS232/RS422 function, please contact our sales staff to confirm and
provide them with the model and definition for your PTZ camera and controller
interface to make customization more convenient.
Power Adapter * 1
Transmitter * 2 Receiver * 1 Antenna * 14 SDI Cable * 4
D-Tap to 2-pin
LEMO Cable*2
Double Ball Head
Magic Arm * 2 RS232 Cable * 3
Support 2-channel outputs
Support HDMI+SDI+LAN Port outputs
simultaneously for each channel Switch Console
Two channels of transmission
only occupy one RF channel
1000 m / 3200 ft Monitor
(LAN Port)
Live Streaming Platforms
Camera-1
SDI/HDMI
2 channels/Tally/Control
Camera-2 Tx-2
Tx-1
Rx
Webcasting Server
Live Streaming Platforms
PTZ Camera Controller
RTSP Streaming
Tally Light
Tally Light
CH B
CH D
CH A
CH C
FOCUS FOCUS
SPEED
HDMI/SDI
RS232/422

TX: 7060
Interfaces and Buttons
A
C
D
E
F
G
H
J
K
L
M
N
N
OLED display
A
BLNA ON/OFF button: High-gain and Low-gain mode switching
CWPS button: pairing
DReset button
E
Network status warning light, yellow light flickers slowly:
network connecting; yellow light is on : network connected;
red light flicker quickly: low battery.
FRS232/422 interface
GSDI input
HHDMI input
IPower Switch
JTally output
KLEMO DC input
LBattery slot
MV-mount slot
NAntenna connectors
Introduction to Transmitter’s Interfaces and Buttons
05 06
B
I
Function
Name

RX: 3062
OLED display
A
BLNA ON/OFF button, screen display direction switching,
High-gain and Low-gain mode switching
CCH/WPS button, channel switching, pairing
DReset button
FRS232/422 interface
KDC input
L
M
V-mount slot
Antenna connectors
Introduction to Receiver's Interfaces and Buttons
EPower button
07 08
Function
Name
RX
BeamLink-Duo Plus
M
A
B
C
D
E
M
F
G
H
I
K
L
J
Tally input
G
HLAN port, Rj45
I
SDI output
J
HDMI output

OLED Display Screen
RESET
CH 2
L1
VIDEO
TX:7060
A
BC
D
E
F
Transmitter ID: two transmitters are numbered
1 and 2 respectively
A
BGain mode: low gain mode (the screen displays “L”) and high
gain mode (the screen does not display “L”)
CSignal icon: video signal strength status
D
WPS: pairing
Name Function
EReset: the device is resetting
FCH*: display current channel
Video: video signal input connected
RX:3062
09 10
A
B
C
Signal Icon: video signal strength status
Name Function
Channel: display current channel
WPS: in pairing status
Gain mode: low gain mode (the screen displays “L”) and high gain
mode (the screen does not display “L”)
DTransmitter ID: numbered 1, 2 respectively
E
Video: video signal received from transmitter
F
VIDEO
2
VIDEO
1
CH2 WPS L
A
DE
F
B
C

11 12
Whether all the antennas are positioned at the ideal angle or not.
Transmission Distance
Factors to Influence Distance
The system supports low gain mode and high gain mode.
For wireless transmission bitrate, as bitrate increases, transmission distance decreases.
The system supports H.265 technology that ensure high quality transmission through
a bandwidth of 4Mbps.
Metal, walls, other objects and human body that block wireless transmissions
downgrade signal strength.
Whether there is any other wireless interference or not.
Transmission Distance and Gain Mode Selection
The corresponding relationship between the maximum transmission distance,
installation height, and wireless gain mode is described below in an open and
unobstructed scenario. The following data is the approximate distance obtained
during actual tests.
Low
Gain Mode
* Open scenario, distance<500m
Mode Usage Scenario
Transmission Distance
(Transmitter height:
1.5m, Receiver height:
>2m, Line-of-Sight
transmission)
500m
1000m
High
Gain Mode
SCAN...
1
2
3
4
5
6
7
8
9
10
11
* Indoor scenario with no obstructions<500m
* Open and unobstructed scenario, distance>500m
* Indoor and outdoor obstructed scenario
(Prioritizing use of high gain mode)
Short press the LNA ON/OFF button, the "SCAN..." will be displayed on the OLED
screen. It means that the receiver is based on the current wireless environment to
scan all the available channels. Once the scanning is completed, the channel quality
of all available channels will be displayed as stars on the OLED screen. (as depicted
in the diagram) The more the stars, the better the reception.
Place the transmitter and receiver in a higher position to avoid the signal blocking.

Product Installation
Installation of Transmitter
H D M I
S D I H D M I
3. Please connect the transmitter to the camera with an SDI or HDMI cable.
(as depicted in the diagram)
HDMI input
SDI input
Distance ≥ 1m
Transmitter at a height of
around 1.5 to 2 meters
above the ground
1. Attach the antennas to the transmitter’s antenna connectors. To achieve even better
range performance, all antennas should be arranged in a fan shape. (as depicted in
the diagram)
2. Mount the transmitter on a camera through the screw hole or the V-mount plate.
It is recommeded to hold the camera in a height where it is at least 1.5-2 meters
above the ground. If using multiple transmitters simultaneously, please keep them
at least 1 meter apart. (as depicted in the diagram)
13 14

15 16
Installation of Receiver
Place the receiver at a
height of around 1.5 to 2
meters above the ground.
B: Vertical placement
A: Horizontal placement
3. Please connect the receiver to the switch console or monitor with the SDI or HDMI
cable(s). (The receiver supports 2 SDI outputs and 2 HDMI outputs)
1. Attach the antennas to the receiver’s antenna . To achieve even better range connectors
performance, all antennas should be arranged in a fan shape. (as depicted in the diagram)
2. Mount the receiver on a tripod or switch console through the screw hole or the V-mount
plate. It is recommeded to hold the receiver in a height where it is at least 1.5-2 meters
above the ground. If multiple receivers are used simultaneously, please keep them
at least 1 meter apart. (as depicted in the diagram)
HDMI output
SDI output
SDI output
HDMI output
00:00:00
H D M IH D M I
S D I
H D M IH D M I S D I S D I

17 18
Product Operation
Connection
2. Connect the receiver to the monitor or other receiving devices with the SDI
or HDMI cable(s).
1. Connect the transmitter to the camera with an SDI or HDMI cable.
H D M I
S D I H D M I
HDMI input
SDI input
Power Supply and Start-Up
The transmitter can be powered by any of the following methods. Then switch the
transmitter on.
b) Attach the V-mount battery to the transmitter and supply power using a D-tap to
2-pin LEMO cable.
a) Attach the NP-F battery to the NP-F battery slot in the back of the transmitter.
Battery
Transmitter Transmitter+Battery
Li-ion
Battery
D-Tap to 2-pin LEMO Cable
HDMI output
SDI output
SDI output
HDMI output
00:00:00
H D M IH D M I
S D I
H D M IH D M I S D I S D I

19 20
The receiver can be powered by any of the following methods. Then short press the
power button to start up.
Channel Switch
You only need to carry out this operation on the receiver. Short press the receiver’s
CH/WPS button to switch channels. Once a channel is selected, the corresponding
channel number will be displayed on both the receiver and transmitter’s OLED screen.
Pairing
Enable pairing on transmitters and receivers.
Receiver: Long press the CH/WPS button for 3 seconds. Once pairing is enabled,
“WPS” will be displayed on the receiver’s OLED screen.
Transmitter: Long press the WPS button for 3 seconds. Once pairing is enabled,
“WPS” will be displayed on the transmitter’s OLED screen.
Long press the WPS button for 3 seconds.
Long press the CH/WPS button for 3 seconds.
a) Use the stock power adapter to supply power to the receiver.
b) Use the V-mount battery to supply power to the receiver.
Power
Li-ion
Battery

21 22
Low Gain and High Gain Mode
Supports two options of gain modes: low gain mode (the screen displays “L”) and
high gain mode (the screen does not show “L”).
The factory default is set as low gain mode. For the definitions of low gain and high
gain mode, refer to the explanations on page 33.
The mode selection needs to be made on the transmitter and receiver. It is
recommended only to switch the mode on the receiver.
Short press the transmitter’s “LNA ON/OFF” button for 3 seconds to switch modes.
After switching from low gain mode to high gain mode, “L” is displayed on the OLED
screen. Switching gain mode of one channel will also apply to other channels.
Channel Scanning Function
Short press the LNA ON/OFF button, the "SCAN... " will be displayed on the OLED
screen. It means that the receiver is based on the current wireless environment to
scan all the available channels. Once the scanning is completed, the channel quality
of all available channels will be displayed as stars on the OLED screen. (as depicted
in the diagram) The more the stars, the better the reception.
Press the LNA ON/OFF button
SCAN...
1
2
3
4
5
6
7
8
9
10
11
BeamLink-Duo Plus channel scanning function can analyze interference of each
channel, so you can select the one with least interference.

RS232/RS422 Transparent Transmission
Pin
NO. Name Description
NC NC
TXD+ TX data signal
1
2
NC NC
NC NC
3
4
GND
RXD+
5
6
GND
RX data signal
13 2
456
Name Description
RXD-Receive data RX-
NC
TXD-
TXD+Transmit data TX+
GND
RXD+
GND
Receive data RX+
RS232 RS422
Transmit data TX-
NC
Attached: Baud rate settings
Log in to the motherboard parameter settings page to modify the baud rate settings.
For the specific operating steps, please refer to "Video Parameter Settings".
Important reminder: The follwing connector is RS232 by default.
Since there are different RS232/422 interfaces for each switch console on the market,
and each data signal definition of the interface is different too. If you need RS232/RS422
function, please contact our sales staff to confirm and provide them with the model
number of PTZ camera and switch console or the pinout definition of RS232/RS422
interfaces. It will make us easy to customize the RS232/RS422 cables for you. Moreover,
the baud rate will be set ready before delivery.
24
23
Tally Function Instructions
This system’s Tally function interface is factory customized. If you need this function,
please contact our sales staff to confirm the pinout definition of its docking device
and the type of device's interface.
Plug the Tally light into the transmitter's Tally output port, and then connect the
switch console to the receiver's Tally input interface with the customized Tally light
cables. Once all the connection is complete, the switch console can control the two
transmitters' Tally lights. In so doing, the receiver as a low-level trigger will be
connected to the switch console. The PGM or PVW signal will be sent to the
transmitter from the switch console. Then the transmitter end's Tally light will be
turned on .
The transmitter and receiver’s Tally interfaces : Both the transmitter and receiver's
Tally interface is a standard 3.5 mm headphone jack.
Tally Light Output Interface
1
2
3
4
5
6
J16
PHONEJACK STEREO SW
RCLamp0521PA
D13
D12
RCLamp0521PA
Tally_Red
Tally_Green
Important Reminders:

25 26
Extend the Transmission
Introduction to Panel Antenna
A panel antenna is a type of directional antenna, which can be used to extend the system’s
transmission range, but the trade-off is that the panel antenna has a transmission angle of
45 degrees.
RTSP Streaming Mode Operation
Using RTSP streaming mode needs software decoding, which means images are
transmitted through the receiver’s LAN port to streaming media software to decode
and display. Moreover, there are many kinds of streaming media existing. The following
description takes VLC media player for example. Once the transmitter and receiver are
connected, the transmitter’s network indicator will be turned on, and the receiver’s
OLED screen will display the signal status. Then connect transmitters to the video
sources, and connect the receiver to RTSP streaming devices through a LAN port.
Take VLC media player for example, after opening VLC, choose “Open Network Stream”,
enter “rtsp://192.168.1.xxx/h265/ch01/main/av_stream”, click “play”, which starts
RTSP streaming.
Important reminder: The IP Address (e.g. the one used by the PC) of the RTSP streaming
device must be on the same network segment as that of the encoding board. Otherwise,
the RTSP streaming mode will not work.
1. Mount the attached bracket on the panel
antenna with screws.
Panel Antenna Usage

27 28
Video Parameter Settings
1. Please make sure that the computer and the receiver remain connected.
3. Input the system’s CODEC address into the corresponding box to enter the
parameter settings page.
2. Set a fixed IP address for the computer and keep it with the system’s IP address
on the same network segment. (192.168.1.XXX).
2. Fix the bracket on the
tripod with screws.
3. Attach the receiver to the bracket through
the V-mount plate with the attached
flexible cables.
4. For the best result, the four transmitters need to move within 45° in front of the
panel antenna.
Panel Antenna
300m
2000m
Decoder
5. This system can transmit up to 2.5 kilomters when working with a panel antenna.

29 30
Upgrade
1. The steps of firmware update are the same for both the transmitter and the receiver.
2. The back of the product labeled with the WiFi IP address and the codec board's IP
address. The default IP addresses are as follows:
Wi-Fi IP 192.168.1.201, 192.168.1.202
Transmitter
Encoder IP 192.168.1.111, 192.168.1.112
Wi-Fi IP 192.168.1.100
Receiver
Decoder IP 192.168.1.211, 192.168.1.212
We are using the following diagram as an example. The system’s operating mode,
WiFi address, and encoder/decoder IP address are clearly shown.
Mode:STA
WiFi IP:192.168.1.201
Decode IP:192.168.1.111
Once login is successful, enter the WiFi parameter settings page.
Connect the computer to the receiver's LAN port. Open the browser and input the
WiFi IP address into the address box to enter the login page.

31 32
Select the “Upgrade” option in the “System” box.
On the “Upgrade” settings page, you can upgrade the system’s WiFi module software.
1: Select the latest software package.
Product Specifications
Receiver: 3062
Item
Operating Frequency
Antenna Mode
Modulation Mode OFDM
Transmission Power 17dbm (per antenna)
EVM ≤-28dB
Receiving Sensitivity：
≤-70dBm
Wireless Standard 802.11n
Network Encryption WPA2/WPS
Network Mode Point-to-Point private protocol, RTSP protocol
Transmission Distance
Transmission Delay 70ms
Pairing Function Supports pairing
HDMI Protocol Supports HDMI 1.4
Audio Format AAC
Video Compression
Format H.265
Remote Control RS232/RS422
IO Port Signal Return Supports Tally signal return
Interface
SDI input*1; HDMI input*1;
Tally output*1;
Lemo power connector*1;
Antenna connector*4;
Rocker power switch*1;
OLED display*1;
Button*3; NP-F970 battery slot*1
Tally input*2; SDI output*2;
HDMI output*2;
Antenna connector*4;
Lemo power connector*1;
Network interface*1; LAN port*1
Power button*1; OLED display*1;
Button*3; Battery slot connector*1
Temperature Range
Operating Power Supply DC 12V/2A DC 12V/3A
Operating Voltage Range 7-17V
Power Consumption 13W
Channel Bandwidth 40 MHz
7-36V
10W
2: Click to upgrade.
5.1~5.8 GHz
Transmitter: 7060
4*4 MIMO, 5dBi External Antenna
1000 m/3200 ft(LoS)
Video Resolution 1080P 23.98/24/25/29.97/30/50/59.94/60, 1080I 50/59.94/60
720P 50/59.94/60
-10 ~ 50°C(Working);-20~80°C(Storage)

33 34
Important Reminders
Installation height and interval distance
1) Two conditions need to be met for a transmission distance of 1000 meters.
First, orient each antenna to have a clear line of sight. Second, each channel needs
to be set to 4Mbps bitstream.
Gain Mode
You can set LNA at low gain mode in a wide-open line-of-sight environment with a
distance of 500 meters distance. You can set the LNA at high gain mode when you
want to transmit a signal through walls and far away from 500 meters
.
Channel Settings
1) When one system is in use, it is recommended to set the channel at CH5-CH9.
Because in most Wi-Fi coverage environments, the high and low frequency is
mostly used, while somewhere between is rarely used. The middle frequencies
have low occupancy rates, which effectively avoids co-channel interference.
Once the channel scanning function is enabled, it could quickly help to select
the best possible channel from the available channel list.
2) To achieve even better range performance, all the transmitters should be at a
distance of 1.5-2 meters above the ground, while the receiver should be at least
2 meters above the ground.
3) When multiple transmitters are used simultaneously, please ensure that they
are at least 1 meter apart.
4) When the receiver and other wireless devices are used simultaneously, please
keep them at least 2 meters apart to prevent possible interference.
2) When two systems are used simultaneously, the receivers must be placed at least
1 meter apart. Once the 80MHz operating mode is enabled, system one is set at
CH5, and system two must be set at CH7, CH8, or CH9. It is recommended to keep
them at least one channel apart. Once the channel scanning function is enabled, it
could quickly help to select the best possible channel from the available channel list.
3) When multiple systems are used simultaneously, the receivers must be placed at
least 1 meter apart. Once the 80MHz operating mode is enabled, system one is
set at CH5, system two is set at CH7, and system three is at CH9. It is recommended
to keep them at least one channel apart. Once the channel scanning function is
enabled, it could quickly help to select the best possible channel from the available
channel list.

Environmental Interference
The following environments will downgrade wireless transmission quality, resulting in
image and audio misalignment (such as image freeze, noise).
1) Walls, large sheets of metal, and various instruments will downgrade wireless transmission.
Try to avoid using this system in these environments.
Cable Connection
2) Please connect the transmitter to the video source with an HDMI cable firstly.
Once the receiver and the monitor are connected, then you can switch them on.
Installation of Product and Antenna
2) Using this system in crowded areas, please place the transmitter and the receiver at a
height of around 1.5 to 2 meters above the ground.
3) If 5GHz wireless devices are used nearby, these may also increase interference. It can
be solved by switching to a different channel manually or automatically.
4) Please do not place this system in a metal container environment, because it will
downgrade wireless transmission. If it is unavoidable, please ensure that each
antenna has a clear line of sight.
1) When installing the magic arm, please fix the transmitter in a direction you want,
then twist the magic arm to fix it on the camera. If you rotate the transmitter to
fix it, the magic arm will not be easily demounted from the transmitter.
2) Please install the antennas before powering on the system.
3) To achieve even better range performance, please arrange the antennas to be
fan-shaped and ensure each has a clear line of sight.
1) Please do not hot plug the HDMI cable of the powered system during use.
35 36