COFDM Wireless Video Receiver HDMI CVBS output
COFDM Wireless Video Receiver HDMI CVBS output mini modulator module long distance fpv UAV Data Transmission UART config Recorder
Work for COFDM-905T
HD digital wireless video transmission receiver COFDM-905R
Built-in Decoder board and COFDM dual-antenna receiving demodulation module, the whole machine adopts aluminum alloy casing, high receiving sensitivity, low decoding display delay, high-definition video output stable and clear.
Features
- Dual Antenna reception
- Support working frequency range: 160MHz~860MHz, the center working frequency can be configured;
- Wireless bandwidth is configurable;
- The sensitivity of dual antenna reception -100±1dbm (QPSK 8MHz);
- Wireless receiving status information (such as received signal strength, air interface rate, date zvazvingava, kushanda frequency, wireless bandwidth, etc.) can be superimposed/not displayed on the video screen through the OSD switch button, or output to the serial port (customized) ;
- Low-latency H264 video decoding, support 1080P@60 decoding playback;
- Audio and video output (HDMI, CVBS, USB port simultaneous output):
- HDMI Type A port audio and video output
- CVBS (Lotus Head) AV audio and video output
- Output video stream to the phone/tablet decoding display via USB port
- Support video receiving and decrypting function (matching with video encryption at the transmitting end);
- Support TF card or USB disk video recording;
- Provide one-way single-direction transparent data transmission serial port;
- Provide parameters to configure the serial port for working settings (such as center working frequency, wireless bandwidth, receiving decryption password);
- Magetsi: 6~15V, working power consumption is 230mA@12V.
- Machine size: 115x90x34mm
- Machine weight: 243 grams
Connector:
- ANT-in: wireless signal input antenna interface, SMA external threaded inner hole
- HDMI: A type HDMI carrier, high-definition audio and video output interface
- CVBS: analog video output interface
- AL/AR: left and right channel analog audio output
- simba connector: 3PIN 2.54mm socket
- USB inowanikwa:
- External phone or tablet can be used to output audio and video to mobile phone or tablet for decoding display
- Recording video can be connected to an external USB flash drive or USB hard disk
- OSD button:
The receiving status information displays the on/off button, and the long press button can switch the switch status, and the switch status will be powered off. When the reception status information display is turned on, it is displayed in red in the upper left corner of the output video screen:- RF:338.0MHz BW:4.0MHz
QPSK CR:2/3 GI:1/16
AIR:3.90Mbps
VBR:3.05Mbps AES OFF
SIG1:27 SIG2:22
ber1:0.14% ber2:100.00%
REC OFF No Storage - RF indicates the center operating frequency, uye BW indicates the working bandwidth.
QPSK is the modulation mode, CR is the convolutional code rate, and GI is the guard interval.
AIR is the air interface rate
VBR is the video bitrate, AES OFF means no encryption
SIG1 refers to the received signal strength near the HDMI port antenna, uye SIG2 refers to the other antenna.
Ber1 refers to the BER error rate near the HDMI port antenna, uye ber2 refers to another antenna.
REC OFF means no video storage
- RF:338.0MHz BW:4.0MHz
- When the wireless receiving signal is interrupted or weak, the output video screen will be interrupted (the re-received signal screen will be automatically restored), and display: Disconnected, no signal
- REC button: Video recording on/off button, short press button to switch state, start recording after power is detected. The system defaults to recording to the TF card. If the TF card is not inserted, it is recorded to the USB flash drive. If they are not inserted, they will not be recorded.
- Link indicator: The wireless receiving link working status indicator lights up after the system is started and blinks when the receiving signal is normal.
- REC indicator: The video recording indicator will flash at the low frequency when recording video, otherwise the high frequency will flash.
- PWR indicator: Power chakarurama.
- CFG serial port: Parameter configuration Serial port, you can configure wireless receiving related parameters, such as center working frequency, wireless bandwidth, decryption password, nezvimwewo. Vcan provides a matching parameter configuration panel SconB to facilitate user parameter setting.
- Data serial port: Transparent data transmission serial port. The serial port data of the transmitter can be wirelessly transmitted to the receiver and output from the serial port.
- TF card interface: Used for software upgrade maintenance or for storing video.
Tarira
Kana iyo COFDM-905T transmitter uye COFDM-905T inogamuchira inogadzira poindi-kune-inongedzo isina waya vhidhiyo yekufambisa system., iyo vhidhiyo inononoka chiratidzo:
Iwo matatu zviratidzo zvekunonoka kwevhidhiyo, vhidhiyo bit rate, uye air interface rate ndiyo inopindirana uye kuzvidzora. Kana iyo mhepo yekubatanidza chiyero yakakura kupfuura 5 nguva iyo vhidhiyo kodhi chiyero, kunonoka kwevhidhiyo kuri kushoma. Panyaya iyi, bvunzo chaiyo ndeyekuti kunonoka kwevhidhiyo kuri kuda 60 ms kana kodhi ichifambiswa pa720P@60, uye kunonoka kwevhidhiyo kuri pamusoro 130 ms pa1080P@60. Iko kunonoka kunoreva kunonoka kubva kuHDMI vhidhiyo yekuisa pakupera kwekutumira kune HDMI vhidhiyo inobuda pamagumo ekugamuchira, kusasanganisa kunonoka kwekamera yekumberi-yekupedzisira yekutumira (takayera kunonoka kwebrand SLR kamera panenge 70 MS, uye kunonoka kwekamera yakakurumbira yemitambo kamera panenge 130 MS). Kune akawanda maficha ekushandisa, kunonoka kwevhidhiyo kunogadzirirwa kusvika ku200ms nekukasira.
Kana iyo COFDM-905T transmitter uye COFDM-905R inogamuchira inogadzira poindi-kune-inongedzo isina waya vhidhiyo yekufambisa system., kureba kwekutapurirana ndiko:
Iyo isina waya yekufambisa kureba ine hukama kune zvakawanda zvinhu zvakaita seyeyedzo nharaunda, ambient electromagnetic interference, occlusion conditions, humidity yemhepo, kushanda frequency, wireless bandwidth, uye kutumira uye kugamuchira antennas. Mhedzisiro dzebvunzo chaidzo: muedzo wevatengi, ndege isina munhu yakasimudzwa ST100 transmitter kuti ibhururuke 100 mamita akakwirira, set ku4M QPSK isina waya bandwidth, 700MHz centre inoshanda frequency, 1W kutumira simba, transmitter antenna 3dBi kutenderera, Kugamuchira kaviri girazi faibha antenna kuwana inosvika 10dBi, kureba kusvika ku16km (vhidhiyo yakatsetseka); yedu pachedu mugwagwa bvunzo muShenzhen, kuguma kwekutanga paflyover, zvakajairika hose antenna (nezve 3dBi kuwana), 340MHz kutanga, QPSK 8M Bandwidth, fiberglass antenna pamagumo ekugamuchira, uye Yagi antenna, nezve 2.2 mamita akakwirira padanda, 2.2 makiromita kure, high-definition vhidhiyo yakatsetseka, chikamu chiduku chezvivakwa zvepamusoro-soro pakati pemutumiri uye mugamuchiri, mugwagwa zvinoonekwa pamusoro 20 madhigirii achikotama. Nekuda kwezvirambidzo zvemigariro, hapana mimwe miedzo yemumugwagwa yakaitwa.
Connector
zera
75 X 55 X 25 mm
RF Performance Test
Operating Center Frequency 470MHz, Simba Amplifier: 1W
Operating Center Frequency 700MHz, Simba Amplifier: 1W
Reviews
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