COFDM אלחוטי AV SD 720P מקלט משדר וידאו מקלט הצפנת שידור NLOS מרוכב CVBS ב- H.264 COFDM-912
$590.00 – $780.00
COFDM Wireless AV SD 720P Video Transmitter
COFDM Wireless AV SD 720P Video Transmitter Receiver Transmission composite CVBS in H.264 COFDM-912
נקודות מכירה
תמיכה Encryption
1W RF output;
SD 720P מרוכבים CVBS ב
תמיכה NLOS LOS transmission
H.264 / MPEG-2;
לְעַכֵּב <300 מילי-שניות;
COFDM-912T adopts advanced COFDM (multi-carrier modulation technology), which integrates transmitting antenna, digital modulation, and audio and video digital compression. It has a small size and long transmission distance. Modular combined design can be used with secret shooting clothes and small cameras, can realize hidden on-site high-definition image collection and transmission. It is a highly integrated mobile non-line-of-sight digital mobile video wireless image transmission equipment that can transmit real-time and stable audio and video in high-speed movement and under the condition of urban buildings.
The transmission system can reach a transmission distance of more than 500 מטר and a line of sight of more than 10 kilometers under general blocking conditions. Using high-gain directional antennas or omnidirectional antennas can further increase the transmission distance. If you need a longer transmission distance, you can use the existing wired network, mobile communication (satellite), and use our company’s portable relay transmission equipment or vehicle-mounted wireless video transmission system for relay transmission. The transmission distance of the system can be Reach more than 20 kilometers.
There are 2 different powers for the secret shot type equipment (0.5W and 1W@average power PA). The greater the power, the stronger the signal penetration and the longer the transmission distance.
Transmission distance: visual environment ≥ 2km. Blocking environment: ≥500m (different depending on the environment)
מאפיין
- Highly integrated, modular design
- Adopt COFDM.cn modulation technology, MPEG-2 image compression technology
- All-round communication, not afraid of building walls
- High-speed inter-line communication, real-time, stable DVD image quality for audio/video transmission
- Heat sink aluminum housing, shockproof and shock-resistant
- High fidelity digital stereo transmission
- Non-line-of-sight (NLOS) mobile transmission for longer distance
יישומים
This product is mainly used for technical reconnaissance and forensics in the military and security inspection departments. Radio and television broadcast, radio and television live broadcast: broadcasting field, sports broadcast, social news, aerial live, studio, mountain adventure, וכן הלאה. It is suitable for real-time mobile transmission of high-quality images in many complex environments such as urban, marine and mountainous.
For drone ( recommend to add extra wave filters, need extra cost )
For CCTV
מִפרָט
Transmitter:
מתח הפעלה: DC11V~DC13V
מתח הפעלה: DC11V~DC13V
Working current: 2W: ≤1.5A DC12V,
Transparent data interface: One-way transparent serial port transmission, 8-bit data bit, 1 stop bit, support odd parity, even parity, wireless check, baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 230400
Encryption : Support 128-bit encryption
Modulation mapping: QPSK (4QAM), 16QAM, 64QAM
Forward error correction: 1/2 2/3 3/4 5/6 7/8
Protection interval: 1/32 1/16 1/8 1/4
Number of carriers: 2K
Frequency bandwidth: 2/3/4/5/6/7/8M adjustable
Transport stream: 2000kbs~20000kbs adjustable
Transmit power: 1W
Transmission frequency: stock product is around 300mhz which ranges 290-310MHZ ( for many obstacles such as on-ground ) around OR 600mhz with range 590-610mhz around ( for a little obstacle such as in drone in the sky ), it can be customized at any frequency ( 170-860MHz ).
Power flatness: 10MHz in-band less than 0.2dB
Shoulder ratio: When the output power is 27dB, the shoulder ratio is better than -30dB.
Second harmonic: ≤-45dB
יותר: 32Db
Input video: 1VP-p, 75 אוהם
Video and audio interface frequency: RCA
Video encoding Format: MPEG-2
Image Quality: 720×576 when larger than 4M code stream
פורמט וידאו: NTSC, PAL can be set
Protection standard: All-aluminum radiator type chassis, anti-corrosion, shockproof design
מַקְלֵט:
frequency range: 170-860MHz VHF&UHF
Frequency bandwidth: 2/3/4/5/6/7/8MHz, מתכוונן
RF input level : -94dBm~0dBm (at 8M bandwidth) /-98dBm~0dBm (2M bandwidth)
RF input impedance: 50 אוהם
RF input connector: SMA female
Demodulation method: COFDM
Constellation mode : QPSK, 16QAM, 64QAM (אופציונאלי)
Forward error correction: 1/2, 2/3, 3/4, 5/6, 7/8 (אופציונאלי)
Number of carriers: 2k,
Protection interval : 1/32, 1/16, 1/8, 1/4 (אופציונאלי)
Video decoding: MPEG-2MP@ML
Screen aspect ratio: 4:3 16:9
Video image: 720*576@6MHz
Video and audio output interface: תֶקֶן 3.5 מִמְשָׁק
מתח הפעלה : DC12V <0.3א
טמפרטורת פעולה : -20 ° C ~ +50 °C
שאלות נפוצות
שְׁאֵלָה: Does this video image transmission support 128-bit video encryption?
תשובה: כן, please check how to set encryption by configuration board at the below video link
גלריה
720 transmission picture effect like the below picture
Do you have any questions, בבקשה תלחץ כאן לשאול שאלה.
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היה הראשון לכתוב סקירה “COFDM אלחוטי AV SD 720P מקלט משדר וידאו מקלט הצפנת שידור NLOS מרוכב CVBS ב- H.264 COFDM-912”
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