COFDM juhtmeta videovastuvõtja HDMI cvbs sisend mini modulaatori moodul RX pikamaa fpv uav

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.

Omadused

1. Dual Antenna reception
2. Support working frequency range: 160MHz~860MHz, the center working frequency can be configured;
3. Wireless bandwidth is configurable;
4. The sensitivity of dual antenna reception -100±1dbm (QPSK 8MHz);
5. Wireless receiving status information (such as received signal strength, air interface rate, andmeedastuskiirus, töösagedus, traadita ribalaius, jne.) can be superimposed/not displayed on the video screen through the OSD switch button, or output to the serial port (customized) ;
6. Low-latency H264 video decoding, support 1080P@60 decoding playback;
7. Audio and video output (HDMI, CVBS, USB port simultaneous output):
   1. HDMI Type A port audio and video output
   2. CVBS (Lotus Head) AV audio and video output
   3. Output video stream to the phone/tablet decoding display via USB port
8. Support video receiving and decrypting function (matching with video encryption at the transmitting end);
9. Support TF card or USB disk video recording;
10. Provide one-way single-direction transparent data transmission serial port;
11. Provide parameters to configure the serial port for working settings (such as center working frequency, traadita ribalaius, receiving decryption password);
12. Toiteallikas: 6~15V, working power consumption is 230mA@12V.
13. Machine size: 115x90x34mm
14. Machine weight: 243 grams

Connector:

1. ANT-in: wireless signal input antenna interface, SMA external threaded inner hole
2. HDMI: A type HDMI carrier, high-definition audio and video output interface
3. CVBS: analog video output interface
4. AL/AR: left and right channel analog audio output
5. võimsus pistik: 3PIN 2.54mm socket
6. USB liides:
   1. External phone or tablet can be used to output audio and video to mobile phone or tablet for decoding display
   2. Recording video can be connected to an external USB flash drive or USB hard disk
7. 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:
   1. 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
   2. RF indicates the center operating frequency, ja 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, ja SIG2 refers to the other antenna.
      Ber1 refers to the BER error rate near the HDMI port antenna, ja ber2 refers to another antenna.
      REC OFF means no video storage
8. 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
9. 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.
10. Link indicator: The wireless receiving link working status indicator lights up after the system is started and blinks when the receiving signal is normal.
11. REC indicator: The video recording indicator will flash at the low frequency when recording video, otherwise the high frequency will flash.
12. PWR indicator: Vooluindikaatori.
13. CFG serial port: Parameter configuration Serial port, you can configure wireless receiving related parameters, such as center working frequency, traadita ribalaius, decryption password, jne. Vcan provides a matching parameter configuration panel SconB to facilitate user parameter setting.
14. 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.
15. TF card interface: Used for software upgrade maintenance or for storing video.

Märge

Kui COFDM-905T saatja ja COFDM-905T vastuvõtja moodustavad punkt-punkti traadita videoedastamissüsteemiga, video viivitus indikaator:
Kolm näitajad video viivitus, video bitikiirus, ja õhu liides määr on vastastikuse mõju ja vastastikuse vaoshoitust. Kui eetriliidesele määr on suurem kui 5 korda video koodi kiirusega, video viivitus on minimaalne. Sel juhul, tegelik test on see, et video viivitus on umbes 60 ms kui koodi transleeritaks 720P @ 60, ja video viivitus on umbes 130 ms 1080P @ 60. Viivitus viitab viivitus HDMI video sisend edastava lõpus HDMI videoväljund saavad end, va viivituse esiotsa kaamera edastava lõpus (mõõtsime viivituse brändi SLR kaamera umbes 70 Prl, ja viivituse tuntud brändi sport kaamera umbes 130 Prl). Enamiku taotluse stsenaariumid, video viivitus on seatud umbes 200 ms vaikimisi.
Kui COFDM-905T saatja ja COFDM-905R vastuvõtja moodustavad punkt-punkti traadita videoedastamissüsteemiga, edastamise kaugus on:
Traadita ülekande kaugus on seotud paljude teguritega nagu test keskkond, ümbritseval elektromagnetiliste häirete, oklusiooni tingimustes, õhuniiskus, töösagedus, traadita ribalaius, ja edastamiseks ja vastuvõtmiseks antennid. Tegelik katse tulemused: klient test, mehitamata õhusõidukid paigaldatud ST100 saatja lennata umbes 100 meetri kõrgune, seatud 4M QPSK traadita ribalaius, 700MHz töösageduse, 1W saatevõimsus, edastusseadmele antenni 3dBi ümber, Saavatel double klaaskiust antennivõimendus umbes 10dBi, kaugus kuni 16km (video siluda); oma tee test Shenzhen, käivitamist lõpeb viadukt, tavaline voolik antenn (umbes 3dBi kasum), 340MHz käivitamine, QPSK 8M Bandwidth, klaaskiust antenn saavad end, ja Yagi antenn, umbes 2.2 meetrit kõrge masti, 2.2 kilomeetri kaugusel, kõrglahutusega video siluda, väikeses koguses kõrghooned vahel saatja ja vastuvõtja, tee visuaalselt umbes 20 kraadi painutamine. Tänu tingimusliku piirangud, kaugemale teekatsetustel tehti.

Connector

suurus

75 x 55 x 25 mm

RF Performance Test

Kesksagedus 470MHz, power Amplifier: 1W


Kesksagedus 700MHz, power Amplifier: 1W

upgrade

Kuidas uuendada TX 720p 1080p?