Aurora - Uncategorized Crystal Video - Free user manual and instructions

Product Type	4K UHD Professional Wireless Video Transmission System
Model	Aurora (Transmitter 7120, Receiver 3120)
Video Input/Output	12G-SDI and HDMI 2.0 up to 4096x2160 60Hz / 3840x2160 60Hz
Video Compression	H.265 with 10-bit 4:2:2 chroma sampling
Latency	Ultra-low, 70ms
Wireless Technology	5GHz, 4x4 MIMO with Beamforming
Transmission Distance	500m (line-of-sight, 50Mbps bitrate)
Frequency Channels	11 channels (5190 MHz to 5795 MHz)
Modulation	OFDM
Transmitting Power	23dBm
Video Bitrate Range	20-60 Mbps
Audio Formats	MPEG-AAC, 48 kHz, 16-bit
Streaming Protocol	RTSP
Network Encryption	WPA2/WPS
Interfaces	12G-SDI, HDMI, LAN, USB, RS232/422, Tally, Headset, Power (XLR)
Power Consumption	Transmitter: 16W, Receiver: 13W
Operating Voltage Range	9-36 V DC
Operating Temperature	-10°C to +55°C
Antenna Type	4x4 MIMO, 5 dBi external antenna
Mounting	V-mount plate (transmitter), 3/8" screw hole (receiver)
Safety	Use only provided power adapter; avoid water, heat, and metal enclosures
Maintenance	No user-serviceable parts; contact factory for repair
Compliance	WEEE (EU Environmental Protection)

Frequently Asked Questions - Aurora Crystal Video

How do I pair the transmitter and receiver?

On both the transmitter and receiver, go to the System submenu (hold MENU for 3 seconds), select Pair, and confirm with Yes. The devices will connect automatically.

What should I do if there is no video output?

Ensure the video source is connected and powered. Check the input/output interface settings (HDMI or SDI) in the Video submenu. Re-plug the cable or restart the devices if needed.

Why is the video quality poor or connection dropping?

Interference from walls, metal, or other 5GHz devices can affect performance. Switch to a different channel using the UP/DOWN buttons, and ensure antennas are arranged in a fan shape with clear line of sight.

How do I change the video bitrate?

On the transmitter, enter the Video submenu (hold MENU), select Bitrate, and choose from 20M, 30M, 40M, 50M, or 60M. Press MENU to confirm.

Can I use both HDMI and SDI output simultaneously?

No, the receiver supports only one output at a time (HDMI or SDI). Select the desired output in the Video submenu under Interface.

How do I enable RTSP streaming?

On the transmitter, enable RTSP in the Video submenu. Connect the LAN port to the network. Use a player like VLC with URL rtsp://:10000/live. The device IP is on the label.

How do I upgrade the firmware?

Copy the correct firmware file (transmitter/receiver different) to a USB drive (FAT32). Connect to the USB port. Go to System > Upgrade and select Yes. The device will restart after about 1 minute.

What power options are available?

Use the provided power adapter (AC110-220V to 9-36V DC) or a V-mount battery. The receiver can also use a D-tap to XLR adapter. Both power sources can be connected; battery takes priority.

How do I use the Tally function?

Connect a Tally indicator to the transmitter's Tally output and a switch console to the receiver's Tally input. The transmitter's Tally lights up when the receiver receives a low-level trigger.

What should I do if the devices cannot connect after switching channels?

Restart both the transmitter and receiver. If the issue persists, try re-pairing them via the System menu. Ensure they are on the same channel and within range.

USER MANUAL Aurora Crystal Video

Broadcast Grade Quality

12G-SDI

500m+

Ultra-Low Latency

HDMI

CRYSTAL VIDEO

Aurora

4K UHD Professional Wireless Video Transmission System

EU Environmental Protection

Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist.

SHENZHEN CRYSTAL VIDEO TECHNOLOGY CO.,LTD

ADD: F12, FS18 ideas Land, Banyuan Road, Baoan Central Area, Shenzhen, China

Post code: 518102

Fax: [phone]

Tel: [phone]-6652

www.cv-hd.com

E-mail: [e-mail]

E-mail: [e-mail]

USER MANUAL

This user manual applies to Aurora:

Transmitter: 7120

Receiver: 3120

Important Information

Please read this user manual carefully before using this product. In accordance with the safety precautions and operating instructions listed on this user manual, please use the product in a correct way. It does not apply in cases as follows:

● Repair or product modification have been executed by unqualified personnel
- The damage is caused by accidents including but not limited to lightning, fire, exposed to rain or water, and moisture.
- Don't use provided CVW power adapter.
- The model label on the product has been modified or removed by unqualified personnel.

Safety Precaution

	To avoid electric shock, do not remove or open the cover. No user-serviceable parts are inside, please contact original factory for maintenance.
	The high temperature in the process of operating the device may cause the high risk of scalding.
	Please use our standard power adapter. As for the detailed information, please refer to the rated voltage shown on the CVW power adapter.
	Handle with care!

Danger: Be careful with electricity

• When connecting to any devices, please turn off the product before any operation.
• Power outlet: To avoid electric shock or fire, short circuit, please make sure that the input voltage of adapter is AC110V-220V.
  ● Lightning: Unplug the product if it has not been used for a time or in lightning weather.

Warning

• This product should not be exposed to dripping or splashing. Please keep any liquid thing off the product.
• To avoid electric shock, please do not stick anything on the air vent of product; do not remove the cover or put the object like pins, steel wire into the gap of the air vent.
• Ventilation: Please do not block the air vents on the receiver/transmitter or place any object on top of them.
• Water Exposure: To avoid electric shock or fire, please do not expose the receiver/transmitter to rain or moisture.
• We assume no responsibility for any damage or result caused by not using original adapters.

Special Notice

• This product operates at 5GHz band, when it's in the complex environment, its transmission capability may be affected by metals, walls, or crowd etc.
• This product has been tested and manufactured to comply with international electrical safety regulations, however, there may be noise caused by the interference with other equipment in rare cases. If the interference is happened, please keep a certain distance away from other equipment.
• The product is susceptible to interference from 5GHz internet (LAN) or other wireless devices.
• The optimal transmission distance between transmitter and receiver is 500 meters in an open and unobstructed environment.
• Please do not deploy the transmitter and receiver on metal cages or shelves, or it may affect the wireless communication.
• It takes approximately 50 seconds to start up and establish the connection between the transmitter and receiver.

Contents

Cautions 01

About the User Manual 02

Product Overview 02

Product Highlights 02

System Connectivity Diagram 04

Packing List 05

Ports and Buttons 06

Transmitter 06

Receiver 08

OLED Display 10

OLED Display of Transmitter 10

OLED Display of Receiver 11

Buttons Operation 12

Product Installation 14

Installation of Transmitter 14

Installation of Receiver 16

Tally 19

RTSP Streaming 21

Firmware Upgrade 22

Product Specifications 23

Troubleshooting 24

Cautions

Thank you for choosing CVW professional wireless video transmission system.

Before using this product, please read carefully the following cautions:

* Avoid prolonged exposure to the direct sunlight or use this product in dusty environments.
* Be sure to use the product within the temperature and humidity range.
* Do not expose this product to violent vibration, or strong magnetic fields.
* Do not contact conductive materials with the interior of the product
* Do not dissemble the product enclosure without the guidance.
* Be sure to use the proprietary power adapter to power up the device.
* Make sure the antennas has been installed before powering up.
* This product is a 5GHz Wi-Fi device. Try to change a channel if this product is interfered by other 5GHz devices.
* The operating band of this product is 5GHz band, when it's in a complex environment, its transmission distance may be affected by metals, walls, or crowd etc. Please ensure that the antennas at the transmitter and the receiver are visible.

Special Precautions:

* When installing the articulating arm on the device, please do not hold the device by hand to rotate and fasten it.
* The RS232/422 and Tally ports are proprietary pinout. If you need these functions, please refer to the RS232/422 and Tally pinout definitions section below.

About the User Manual

This manual includes the product's specifications and a detailed introduction to its troubleshooting. Before using this product, please carefully read this manual. If you have any question or concern while using this product, please contact us or our dealers as soon as possible.

Product Overview

Aurora is a set of broadcast-grade 4K UHD wireless video transmission system, supporting the resolution up to 4096x2160 60Hz, 3840x2160 60Hz. This system is based on 5GHz wireless network and advanced 4x4MIMO technology. It adopts H.265 video encoding, the technology enables a higher image quality with lower latency.

Product Highlights

■ High quality and low latency

This product supports 12G-SDI input and output, supports HDMI 2.0 UHD input and output, and the resolution is up to 4096x2160 60Hz, 3840x2160 60Hz. H.265 technology enables a high-quality video with low latency of 70ms.

■ Support 10-bit 4:2:2 chroma sampling rate

This product supports 10-bit 4:2:2 chroma sampling rate, which can meet the professional broadcast-grade requirements, and is suitable for more extensive applications.

■ Beamforming

With the combination of 4x4 MIMO and Beamforming technologies, this product is superior to other WiFi products in terms of transmission distance and video quality.

■ Support simultaneous point-to-point and RTSP streaming output

This product supports simultaneous operation of point-to-point and RTSP streaming modes. In the point-to-point mode, the video output is from HDMI or SDI. In the RTSP streaming mode, the video streaming port is the LAN port (RJ45), and can output video simultaneously with the HDMI or SDI port.

Note:

1. HDMI input matches HDMI/SDI output; SDI input matches HDMI/SDI output. The SDI and HDMI output cannot be supported simultaneously by the receiver. The corresponding input and output operations can be selected based on the display instructions. For details, please refer to the button instruction below.

2. In the RTSP streaming mode, the maximum resolution of SDI and HDMI outputs are 4096x2160 60Hz, 3840x2160 60Hz, the resolution of RTSP streaming is 1280x720/60Hz by default.

■ RS232/RS422 transparent transmission

The product supports RS232/422 transparent transmission that enables the device connected to the receiver to send control commands to the camera side.

■ Support intercom and Tally

The product supports voice intercom and Tally function.

System Connectivity Diagram

graph LR
    A["Tally Indicator"] --> B["Headset"]
    B --> C["Camera"]
    C --> D["Transmitter"]
    D --> E["500 m/1600 ft Wireless Video Transmission+Intercom+Control 12G-SDI/HDMI"]
    E --> F["Receiver"]
    F --> G["HDMI/SDI Monitor"]
    F --> H["RS232/422 Camera Controller"]
    F --> I["Tally Tally Controller"]
    F --> J["Headset"]

Packing List

Please check the following items carefully after unpacking. If any of them is missing, please contact your seller.

Transmitter x1

Receiver x1

Antenna x10

Power adapter x1

12G-SDI cable x2

D-tap to 4-pin XLR adapter x2

USB OTG adapter x1

Ports and Buttons

TX: 7120

Technical line drawing of a mechanical component with mounting holes and internal channels (no text or symbols)

Transmitter ports introduction:

Item	Description
A	Antenna Connectors
B	Tally Output
C	RS-232/422
D	USB
E	LAN Port
F	Power Button
G	DOWN Button
H	MENU Button
I	UP Button
J	Headset Jack
K	HDMI Input
L	12G-SDI Input
M	12G-SDI Loop Output
N	Power Input

RX: 3120

Receiver ports introduction:

Item	Description
A	Antenna Connectors
B	Tally Input
C	RS-232/422
D	USB
E	LAN Port
F	Power Button
G	LEFT Button
H	DOWN Button
I	RIGHT Button
J	UP Button
K	MENU Button
L	Headset Jack
M	HDMI Output
N	12G-SDI Output
O	Power Input

OLED Display

TX:7120

Item	Icon	Content	Status
A	Battery voltage	13.9V	Current battery voltage
B	Fan status	Blank	OFF
			ON
C	Signal strength	No signal strength indication	No connection
			Successful connection
D	Video signal	No Video	No video input
		4K 60P	Input video resolution
E	Signal source SDI/HDMI and bitrate	HDMI 60M	HDMI input, bitrate 60M
		SDI 60M	SDI input, bitrate 60M
F	Working channel	CHI	Current channel

RX:3120

Item	Icon	Content	Status
A	Battery voltage	13.9V	Current battery voltage
B	Fan status	Blank	OFF
		※	ON
C	Signal strength	No signal strength indication	No connection
		Y.	Successful connection
D	Video signal	No Video	No video output
		Shows a resolution	Output video resolution
E	Signal source SDI/HDMI and bitrate	HDMI 30M	HDMI output, bitrate 30M
		SDI 30M	SDI output, bitrate 30M
F	Working channel	CH4	Current channel

Buttons Operation

TX:7120

Function	Operation	Description
Channel Switch	In the main menu, the UP button is used to change to a higher channel, the DOWN button to lower, and the MENU button to confirm.	Press the UP or DOWN button to cycle switch between channels, then press the MENU button to confirm the change. If the MENU button is not pressed in 10 seconds to confirm, the channel will be automatically restored to original channel.
Go to the submenu	In the main menu, press and hold the MENU button for about 3 seconds.	Go to the submenu
Video	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Video", then press the MENU button to enter, press the UP or DOWN button to select the functions, and finally press the MENU button to confirm.	"Video-Interface-HDMI/SDI", to select HDMI input or SDI input."Video-RTSP-Enable/Disable", to enable or disable RTSP streaming mode"Video-Bitrate-20M/30M/40M/50/M60M", to set the bitrate
Intercom	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Intercom", then press the MENU button to enter, press the UP or DOWN button to select the functions, and finally press the MENU button to confirm.	"Intercom-ON/OFF", to enable or disable intercom function."Intercom-Volume-Low/Normal/High", to the adjust headset output volume.
UART	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "UART", then press the MENU button to enter, press the UP or DOWN button to select the required baud rate, and finally press the MENU button to confirm.	"UART-Baudrate-4800/9600/19200/38400/57600/15200/230400", to set the RS232/R5422 baudrate
Fan	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Fan", then press the MENU button to enter, press the UP or DOWN button to select the fan status, and finally press the MENU button to confirm.	"Fan-OFF/30%/50%/75%/100%", to turn on/off the fan, and adjust the fan speed.
System	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "System", then press the MENU button to enter, press the UP or DOWN button to select the functions, and finally press the MENU button to confirm.	"System-Pair-Yes/No", to pair the transmitter and receiver."System-LNA-High/Low", to select high/low gain."System-restore-Yes/No", to restore the factory settings."System-upgrade-Yes/No", to upgrade the system."System-ENC RST-Yes/No", to reset encoder."System-RF RST-Yes/No", to reset wireless module."System-Language-English/Chines", to select language.
Status	In the main menu, press the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Status", then press MENU to enter, press the UP or DOWN button to select the "IP Address" or "Firmware Version", and finally press the MENU button to confirm.	"Status-IP address-0.0.0.0", to view the IP address."Status-Version-V0.0.0", to view the firmware version.

RX:3120

Function	Operation	Description
Channel Switch	In the main menu, the LEFT button is used to change to a higher channel, the RIGHT button to lower, and the MENU button to confirm.	Press the LEFT or RIGHT button to cycle switch between channels, then press the MENU button to confirm the change. If the MENU button is not pressed in 10 seconds to confirm, the channel will be automatically restored to original channel.
Go to the submenu	In the main menu, press and hold the MENU button for about 3 seconds.	Go to the submenu.
Video	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Video", then press the MENU button to enter, press the UP or DOWN button to select the video output options, and finally press the MENU button to confirm.	"Video-Interface-HDMI/SDI", to select HDMI output or SDI output.
Intercom	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Intercom", then press the MENU button to enter, press the UP or DOWN button to select the intercom options, and finally press the MENU button to confirm.	"Intercom-ON/OFF", to enable or disable intercom function. "Intercom-Volume-Low/Normal/High", to adjust the headset output volume.
UART	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "UART", then press the MENU button to enter, press the LEFT or RIGHT button to select the required baud rate, and finally press the MENU button to confirm.	"UART-Baudrate-9600/19200/38400/57600 11S200/230400", to set the RS232/RS422 baudrate.
Fan	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Fan", then press the MENU button to enter, press the LEFT or RIGHT button to select the fan status, and finally press the MENU button to confirm.	"Fan-OFF/30%/50%/75%/100%", to turn on/off the fan, and adjust the fan speed.
Channel Scan	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Scan", then press the MENU button to enable it.	The characters of "Scan" is displayed on the OLED screen. Once the scanning is completed, the channel quality of all available channels will be displayed as column charts on the OLED display.
System	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "System", then press the MENU button to enter, press the UP or DOWN button to select the functions, and finally press the MENU button to confirm.	"System-Pair-Yes/No", to pair the transmitter and receiver. "System-LNA-High/Low", to select high/low gain. "System-restore-Yes/No", to restore the factory settings. "System-upgrade-Yes/No", to upgrade the system. "System-DEC RST-Yes/No", to reset decoder. "System-RF RST-Yes/No", to reset wireless module. "System-Language-English/Chinese", to select language.
Status	In the main menu, press and hold the MENU button for about 3 seconds to enter the submenu, press the UP or DOWN button to select "Status", then press the MENU button to enter, press the UP or DOWN button to select the "IP Address" or "Firmware Version", and finally press the MENU button to confirm.	"Status-IP address-0.0.0.0", to view the IP address. "Status-Version-V0.0.0", to view the firmware version.

Product Installation

Installation of Transmitter

1. Install the antennas to the antenna connectors, and arrange them to be fan-shaped.(As shown in the figure below)

1. Please install the transmitter on the 4K camera through the V-mount plate on its back, and use the V-mount battery to power up the transmitter and the camera simultaneously. (As shown in the figure below)

1. Please connect the transmitter properly to the camera using a HDMI/SDI cable. (Please note that "HDMI" or "SDI" will appear on the OLED display when the corresponding cable is connected.)

Installation of Receiver

1. Install the antennas to the antenna connectors, and arrange them to be fan-shaped. (As shown in the figure below)

1. Please place the receiver at a height of around 1.5 to 2 meters above the ground. The receiver can be installed through the 3/8" screw hole in the bottom.

1. Please connect the receiver to a monitor with a HDMI/SDI cable. (Please note that "HDMI" or "SDI" will appear on the OLED display when the corresponding cable is connected.)

1. The receiver can be powered by the battery mounted on the V-mount plate, or connected to the XLR port via a power adapter. If both are connected, the battery will be used in priority, and will automatically switch to the power adapter when the battery runs out.

Tally

Tally

• First, plug the Tally indicator into the transmitter's Tally output, and connect the switch console to the receiver's Tally input. Then, the transmitter's Tally indicator can be controlled by the switch console. The transmitter's Tally indicator is turned on when the receiver is triggered by low level.
  ■ The Tally port is 3.5 mm phone jack.

Tally output pinout

Tally input pinout

RS232/RS422 transparent transmission

RS232&422 port is RJ45 connector, baud rate can be modified through the display menu UART-Baudrate. The pinout is shown as below:

Pin No.	Name	Description
1	GND	GND
2	NC	NC
3	RX-	422 receives data R-
4	TX-	422 transmits data T-
5	TX+	422 transmits data T+
6	RX+	422 transmits data R+
7	TX-	232 transmits data TX
8	TX+	232 transmits data RX

RTSP Streaming

Please select "Video-RTSP" from the sub-menu to enable the RTSP function. After the setting is completed, please connect the LAN port of the transmitter or receiver to a PC or other device.

Take the VLC application as an example. After opening the VLC application, please select "Open Network Stream" and fill in "rtsp:// IP address of the corresponding transmitter encoding board: 10000/live" in the address field, then click "Play" to start streaming.

Notes:

■ The IP address is on the label on the back of the device.
■ The transmitter must be connected to the video source, and the IP address of the terminal streaming device (such as a computer) must be in the same network segment as the IP of the encoding board in the transmitter. Otherwise, the RTSP streaming mode will not work.

Firmware Upgrade

Firmware upgrade through USB port

Please copy the latest firmware to the root directory of a USB disk(FAT-32 format) and connect it to the transmitter and receiver respectively, and select "System-upgrade-yes" in the menu bar on the display. The display will show "PIs Wait...", which means the upgrade is in progress. Once the upgrade is completed, the system will restart automatically.

Note: The firmware for the transmitter is different from that of the receiver. The upgrade process may take approximately one minute.

Product Specifications

Item	Transmitter: 7120	Receiver: 3120
Frequency	5190 MHz (1), 5230 MHz (2), 5270 MHz (3), 5310 MHz (4), 5510 MHz (5), 5550 MHz (6), 5590 MHz (7), 5630 MHz (8), 5670 MHz (9), 5755 MHz (10), 5795 MHz (11)
Antenna mode	4x4MIMO SdBi external antenna
Modulation mode	OFDM
Transmitting power	23dBm
Network encryption	WPA2/WPS
Streaming protocol	RTSP
Transmission distance	500m (50Mbps bitrate, Line-of-Sight)
Transmission latency	70ms
Video bitrate range	20-60Mbps
Video compression format	H.265 encoding/decoding
Video formats	SDI resolutions: 3840x2160 23.98/24/25/29.97/30/50/59.94/60Hz1080P 60/59.94/50Hz (A&B)1080I 60/59.94/50 1080P 30/29.97/25/24/23.98Hz1080PsF 30/29.97/25/24/23.98Hz720P 60/59.94/50Hz
	HDMI resolutions: 3840x2160 23.98/24/25/29.97/30/50/59.94/60Hz1080P 60/59.94/50/30/29.97/25/24/23.98Hz1080I 60/59.94/50Hz720P 60/59.94/50Hz
Audio formats	MPEG-AAC sampling rate 48KHz bits : 16 bits
Power consumption	16 W	13 W
Operating voltage range	9-36 V
Operating temperature	-10 °C to +55 °C

Troubleshooting

1) HDMI input matches HDMI/SDI output; SDI input matches HDMI/SDI output. The SDI and HDMI output cannot be supported simultaneously by the receiver. The corresponding input and output operations can be selected based on the display instructions. For details, please refer to the button operation.
2) Please connect the transmitter to the video source, and the receiver to the monitor, then power them up.
3) If the connection fails, please restart the transmitter and receiver. If the connection still fails, please refer to the button operation instructions to do re-pairing.
4) If no video source is displayed on the monitor after switching the video source resolution, please re-plug the HDMI cable of the transmitter or receiver. If there is still no signal after unplugging and plugging the HDMI cable, please restart the transmitter and receiver.
5) If the connection cannot be established after switching the channel, please restart the transmitter and receiver.
6) If the image is interfered, please try to switch the channel. For channel switching, please refer to the channel switching instructions.

7) Never power up the product without the original antennas and power adapter.
8) During use, the surrounding environment might affect wireless transmission quality. These situations are below:
a: Walls, large metal plates, and appliances may disrupt wireless transmission.
b: When using the equipment in crowded environment, please place the transmitter and receiver at the height of around 1.5-2 meters above the ground.
c: If 5GHz wireless devices are used nearby, these may also increase interference, which can be solved by switching to a different channel.
d: To achieve best wireless transmission performance, please arrange the antennas to be fan-shaped at the transmitter and receiver side with a clear line of sight.