Transmisor y receptor de video inalámbrico para cámara, drone video download link, COFDM
Transmisor de video inalámbrico para cámara, HDMIHD H265 264 codificador 1W/2.5W PA 1080P60
Tabla de contenido
Solicitud
- Full set HDMI input, HDMI output for long-rang Video Transmission.
- HD Wireless Video Transmitter and Receiver kit for CCTV Security cameras, Wedding DSLR camcorders,
- HDMI CVBS AV input on the Wireless Video Transmitter, Receiver has Ethernet / RJ45 / IP output to the computer, notebook for live streaming
- Wireless video transmitter for conference rooms (There are some obstacles between transmitters and receivers, NLOS: none-line-of-sight)
- Wireless 1080p video transmitter and receiver for Drone UAV video data downlink from the air to the ground
Transmitter Advantage
- This high-definition digital wireless video transmission transmitter includes an HDMI / CVBS (analog AV Audio Video)encoding board, a COFDM modulation module, and a small 1vatios o 2.5 vatios PA módulo amplificador de potencia.
- The entire box is made of a CNC aluminum alloy shell that is small and light. The transmission resolution is excellent, y la distancia de transmisión es larga.
- Modulation using COFDM.
- Por defecto, H265/H264 video encoding supports up to 1080P/I @60fps.
- AES256 encryption is adopted.
- Non-line-of-sight high-speed mobile transmission is supported. (Up to 800km/hour, support UAV Drone video download link)
- Support to configure the center frequency, ancho de banda inalámbrico, transmission stream, and so on parameters. (How to Configure?)
Transmitter Input Output
Interfaz de entrada AV:
SD input interface, 4PIN 1.5mm pitch socket, audio support Mic in or Line in input (specified at the factory before shipment). PAL or NTSC format can be set through the parameter panel. (How to change PAL / NTSC video format?)
ALFILER | descripción |
Alabama | audio input Left channel |
AR | audio input Right channel |
GND | tierra de la señal |
DE | entrada de vídeo analógico |
Configuration Interface:
Configuration serial port (UART de control), 4PIN 1.5mm pitch socket, nivel TTL 3.3V. The 5V signal is used to supply power to our parameter configuration board.
interfaz de datos:
One-way transparent data serial port (UART de datos), the serial port data will be unidirectionally transmitted to the data serial port of the corresponding receiver through the COFDM wireless link. 3PIN 1.5mm pitch socket, the default shipment is TTL 3.3V level, and it can also be specified as a standard RS232 level serial port when shipped.
Especificación del transmisor
Interfaz | |
HD video input | Standard HDMI Interface |
SD video input | 4PIN 1.5mm pitch connector (CVBS Analog Audio Video Input) |
One-way transparent data transmission serial port | 3PIN 1.5mm pitch connector, the default shipment is TTL3.3V level. The standard RS232 level can also be optional before shipment. |
Configure Serial port | 4PIN 1.5mm pitch connector, TTL3.3V. It can be connected to our Parámetro Configurar placa, and can also be connected to a PC or another host computer |
grado de distancia opcional | W/2.5W HD video COFDM transmisor de enlace descendente inalámbrico con interfaz de entrada HDMI o SDI o AV El transmisor de video digital inalámbrico fue diseñado para su uso (12V Fuente de alimentación) |
interfaz de antena | Escuela Secundaria male thread inner hole |
Wireless modulation transmission | |
Wireless modulation | COFDM |
modo de IFFT | 2K |
ancho de banda inalámbrico | 1MHz~8MHz Adjustable, 1paso KHz |
FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
intervalo de guarda | 1/32, 1/16, 1/8, 1/4 |
Constelación | QPSK, 16QAM, 64QAM |
Wireless Code stream | 0.5Mbps to 31.67Mbps (bites per second) |
Working frequency Band | Optional working frequency band:
300~360MHz; 350~400MHz; 450~500MHz; 520~560MHz; 580~620MHz; 680~720MHz; 820~ 860 MHz. Other working frequency bands between 200~860MHz can be customized. The center operating frequency is configurable, with a step of 1KHz. |
Poder de transmision | 1W (30dBm) or 2.5W (34dBm) |
Audio and Video processing | |
support video input | default single-channel video input encoding transmission: HD or SD. Video input is automatically detected after power is on. If connected at the same time, the device defaults to the preferred HDMI input, and can also be changed to the preferred AV input.
Optional dual video input simultaneous encoding and transmission. |
Supported video formats | 1080Salida RF SMA hembra, 1080Salida RF SMA hembra, 1080Salida RF SMA hembra, 1080Salida RF SMA hembra, 1080Salida RF SMA hembra, 1080Salida RF SMA hembra, 1080@50I, 1080Salida RF SMA hembra, 720Salida RF SMA hembra, 720Salida RF SMA hembra, 720Salida RF SMA hembra,
720*480 60yo(NTSC), 720*576 50yo(CAMARADA) |
Video Encoder | H265 or H264 |
Entrada de audio | HDMI embedded audio or analog CVBS Right / Left Audio Input |
Formato de audio | AAC, 16poco, estéreo, 32kbps |
Cifrado y descifrado | AES256 |
Dimensión | 10.5*5*2.7cm |
Peso | <140 gramos |
Fuente de alimentación
El consumo de energía |
DC 12V power supply (11~13V)
1W PA power amplifier: the power consumption is less than 15W; 2.5W PA power amplifier: the power consumption is less than 23W. |
Estado latente | H265: 0.2~0.3 second; H264: 0.05-0.13 segundo |
Dimensión del transmisor
Wireless Video Transmission Receiver
Receiver Advantage
- HD video COFDM wireless receiver with HDMI/CVBS/Ethernet/USB output interface
- Integrado RTSP server that allows video streaming over Ethernet for remote decoders. (Defecto, rtsp://192.168.0.215/testStream ; port number should be 554, no 8080) How to set RTSP player?
- Allows remote Android device decoders to stream video over USB. (Splayer Android APK V5.0_2017)
- Supports displaying character strings on the video display screen alongside the video in OSD mode.
Característica del receptor
- Dual diversity Antenna recepción
- Supporting working frequency band:160860MHz MHz ~, the center operating frequency can be configured;
- Wireless bandwidth can be configured;
- Dual antenna receiving sensitivity -100±1dbm (QPSK 8 MHz);
- información sobre el estado de recepción inalámbrica (eg Received signal strength, velocidad de la interfaz de aire, data bit rate, operating frequency, ancho de banda inalámbrico, etcétera) can be selected to be superimposed or not displayed on the video screen via the OSD switch button, and can also be output to the serial port (personalizado);
- Baja latencia de descodificación de vídeo H264, with support for 1080P@60 decoding and playback;
- salida de audio y vídeo (HDMI, CVBS, USB, and Ethernet interface output at the same time):
- HDMI type A port audio and video output
- CVBS (lotus head) AV de audio y salida de vídeo
- USB port output Video stream to mobile phone/tablet for decoding and display
-
Ethernet RJ45 output Interface for living stream, RTSP player support
-
Apoyo AES256 decryption video reception
-
Grabación de vídeo via TF card or USB disk is supported.
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Proporcionar 1 serial port for one-way transparent data transmission;
-
Provide a serial port for parameter configuration for working settings (such as central working frequency, ancho de banda inalámbrico, and receiving decryption password);
-
Fuente de alimentación, 6~ 15V,
-
Working power consumption: 230mA@12V
-
Dimensiones: 11.5x9x3.4cm
-
Peso: 255 gramos.
Receiver Input Output
salida de vídeo HD | HDMI type “A” Connector |
Salida de video compuesto | RCA Connector |
Salida de audio | Embedded HDMI and RCA Connector |
entrada de RF | Two SMA |
W/2.5W HD video COFDM transmisor de enlace descendente inalámbrico con interfaz de entrada HDMI o SDI o AV El transmisor de video digital inalámbrico fue diseñado para su uso | 3PIN PH2.54mm Connector |
Puerto USB | Type A connector |
Datos TTL UART(3.3V) | 3Conector PIN PH1.25mm |
W/2.5W HD video COFDM transmisor de enlace descendente inalámbrico con interfaz de entrada HDMI o SDI o AV El transmisor de video digital inalámbrico fue diseñado para su uso(3.3V) | 4PIN lockable Connector (from left to right, TX, RX, GND, 5V) |
Ethernet | RJ45 |
Tarjeta TF | Ranura para tarjetas TF |
OSD Key | Switch key for OSD-display |
Rec Key | Switch key for Video recording |
COFDM Video Transmitter and Receiver full-set
preguntas frecuentes
Please use the parameter configuration board to check.
More operation guide for the parameter configuaration board, por favor mira https://ivcan.com/parameter-configuration-panel-quick-operation-guide/
- Keep the antenna as high as possible because the ground absorbs the signal.
- Try to be at point B instead of point A. Because according to the transmission principle of the antenna, it propagates in an umbrella shape. The signal at point A is often very weak.
- The Transmitter frequency range can change to 1.4G or 1.34G.
- The receiver frequency range only supports 170-860Mhz, if you need 1.4G or 1.34G, you need to install a frequency down converter block at the receiver.
- We don't have the frequency down converter block now, maybe you can contact the below supplier. (Performance is much better than China supplier now)
- https://www.ettus.com/product-categories/rf-daughterboards/
- https://www.vislink.com/product/l3025-down-converter/
- https://www.kuhne-electronic.com/funk/en/shop/leistungsverstaerker/prof-heat-sinks/KU+LNC+1215+C+PRO+Down+Converter/?card=1839
- Above parameter LO frequency choose 1000MHz.
This model COFDM wireless video transmitter support video source input connector, HDMI, CVBS AV, IDE, IP ethernet RJ45, and AHD, please tell us what video type you need before delivery.
RF: 338.0MHz BW: 4.0megahercio; RF indicates the central operating frequency point, BW indicates the operating bandwidth
QPSK CR: 2/3 GI: 1 /16 ; QPSK is the modulation method, CR is the convolution code rate, GI is the guard interval
AIRE: 3.90mbps ; AIR es la velocidad de la interfaz de aire
VBR: 3.05Mbps AES OFF ; VBR es la tasa de bits de vídeo, AES OFF significa que no hay cifrado
SIG1: 27 SIG2: 22 ; SIG1 refers to the received signal strength of the antenna near the HDMI port, SIG2 refers to another antenna
ber1: 0.14% ber2: 100.00% ;ber1 refers to the receiving bit error rate of the antenna near the HDMI port, ber2 refers to another antenna
REC OFF Sin Almacenamiento ; REC OFF significa que no hay almacenamiento de vídeo
Por favor revisa aquí.
There are COFDM wireless video transmitter boards, PA power amplifiers, and cooling fans.
Seguro
Por favor revise el siguiente enlace
Módulo repetidor de relé COFDM para drone UAV transmisor y receptor de vídeo inalámbrico Vcan1870
From some UAV customers have measured 50km when they are testing, and the height of the UAV is about 300 metros.
- If the transmitter modifies the wireless parameters such as constellation, GI, CR, and BW, the receiver must be restarted to lock and display normally.
- Another possibility is that your transmitter modifies the constellation parameters through the AT command, but the parameters are not actually written into the baseband board. You need to restart the transmitter board to confirm.
- Our one-way cofdm video transmission is not designed to consider your current usage scenario (fast switching frequency).
- This may not work, the delay of TX switching frequency involves many aspects, such as the delay of the encoder board itself (currently the main program processes parameter changes in a cycle of about 1 segundo), and the processing delay of the baseband board, so add It takes about 2 second to switch. The processing delay of the encoder board can be squeezed to within 1 second by modifying the firmware, but the delay of the baseband board is not easy to squeeze, and the most important thing is that it is not easy to update the firmware (you must return to the factory to use our equipment to update the firmware).
- Summarize:
The encoder board may be able to reduce the processing delay of 1 second by updating the firmware, but the delay of the baseband board cannot be squeezed, so the final optimized delay is about 2 segundos.
- Our Vcan1726 can support one HDMI and one auxiliary CVBS audio and video input at the same time, which can be connected to external microphones and power amplifiers.
- The current software can only support one sound source, which can be modified and selected through the parameter configuration board, HDMI sound, or CVBS sound, and cannot handle two channels of audio at the same time.
- Porque COFDM es una transmisión unidireccional, both video and audio can only be transmitted in one direction. From the transmitter to the receiver, the audio cannot have a two-way intercom, just like an ordinary radio, which can only broadcast in one direction.
The UART command is here.
Establecer comando de fuentes de entrada (cambiar HDMI / entrada CVBS)
Formato | ATSU$(vino),$(ain)_ Ejemplo: ATSU0,1_ |
Parámetro | 1. Selección de entrada de vídeo VIN: 0 dejar que el sistema detecte; 1 forzar entrada CVBS; 2 forzar entrada hdmi/SDI 2. Selección de entrada de audio AIN: 0 dejar que el sistema detecte; 1 forzar entrada analógica |
Utilizar | Se utiliza para cumplir con los requisitos de aplicaciones específicas (Ejemplo: Vídeo de entrada HDMI/SDI, Audio de entrada de micrófono) |
Valor devuelto | Ejemplo: ATSU0,1_ ATSU0,1 OK |
Observación | comando de configuración, ahorro de energía. |
Get Gain Audio Input
Formato |
ATSAIS(lin),(ain vol)_ Ejemplo:ATSAI0,50_ |
Parámetro |
Analog audio input mode selection lin: 0 mic in;1 line ine Analog audio input volume control ain vol: mic in recommended 50; line in recommended 0 |
Función | Used to set analog audio input parameters |
Realimentación | Por ejemplo: ATSAl0,50_ ATSAI0,50 ok |
La mejor especificación de antena X4 con 4 sintonizadores de su clase Uno al sintetizar las imágenes recibidas por cada uno de los cuatro sintonizadores |
Set the command and save it after power off. ain vol setting range [-78,80] |
COFDM Video Transmitter Frequency customize to 664Mhz
How to upgrade the COFDM wireless video receiver newe firwmare