Shenzhen dingshen Industrial Co., Ltd
Shenzhen dingshen Industrial Co., Ltd
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Customized long range COFDM video transmitter for camera surveillance
It’s a new powerful HD COFDM video transmitter, can up to 15-25W RF power which supports transmitting over a long distance. With the latest technologies of COFDM modulation and H.264 image compression that enables good NLOS (Non-line-of -sight) transmission with DVD quality video. The transmitter is compact size with a strong power amplifier for long range transmission. Good heat resistant with two cooling fans. Be safety with AES128 bits. Can work well in fast-moving transmission.
communication.
Features:
* Strong security by AES user-defined encryption
* Low system latency
* Modular design, compact structure, OEM design
* Several wavebands available: VHF/UHF/L/ S
* Built-in very good heat radiation.
* MPEG-4 /H.264 video compression, full HD video quality
* Military aluminum housing, black or green color option
* Mobile and NLOS (Non line-of-sight) transmission
Specification:
| Power supply | |
| DC input | DC12V-DC14V |
| Working Current | ≤4.7A DC12V |
| Video transmission | |
| Working frequency range | VHF, UHF |
| Modulation | COFDM |
| Constellation | QPSK,16QAM |
| Bandwidth | 2/2.5/4/8MHz |
| Power output | 20W |
| A/V interface | BNC, HDM, SDI |
| Data serial interface | RS485/RS232/RS422 (option) |
| Data working mode | Half duplex |
| Serial data rate | 19200bps baud rate maximum |
| Video input format | PAL/NTSC |
| Video resolution | 1080i,1080P,720P |
| Video encoding | MPEG-4/H.264 |
| Audio channel | Stereo Left / right channel |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Carrier | 2K |
| Guard Interval | 1/32, 1/16, 1/8, 1/4 |
| Antenna interface | N type |
| Flatness | ≤2dB(within full frequency range), ≤0.5dB(within 8MHz) |
| Video Harmonic | 1Vp-p 75Ω, NTSC/PAL adaptive |
| Environment | |
| outer case quality | military grade level |
| Work environment | -30~55℃ |
| Storage temperature | -40~70℃ |
| Environment humidity | ≥95% |
| Appearance | |
| Weight | 4.68kg |
| Dimension | 300*190*170mm |
| cover range | 10-15km NLOS in city; 200-250km from air to ground |
| Warranty | 12 months, lifetime maintenance |
Application:
Optional COFDM Wireless Video Audio Receiver:
1). Rack mounted Wireless Receiver:
Specifications:
| DC Input | DC11V~DC16V |
| Working Current | ≤1.1A DC12.5V |
| Receiving sensitivity | ≤-102dBm /4MHz, ≤-95dBm /8MHz |
| BER | BER≤1×10-4 |
| Frequency input range | 300MHz~--470MHz |
| Input interface | N(type),Dual antenna diversity reception technology |
| Modulation | COFDM |
| RF bandwidth | 4/8MHz (adjustable) |
| Constellation | QPSK,16QAM,64QAM (optional) |
| Encryption | AES 128/265 bit / ALLTECH Basic scrambling |
| FEC | 1/2,2/3,3/4,5/6, 7/8 (optional) |
| Guard Interval | 1/32,1/16,1/8,1/4 (optional) |
| Carrier | 2K |
| Video formats and amplitude | PAL/NTSC, 1Vp-p/75Ω |
| Video compression | H.264/MPEG-2(autoadaptation) |
| Decode code stream rate | 0.5-12Mbps |
| Video output interface | Composite video RCA,HDM,ASI,HD-SDI(alternative) |
| Interrupt recovery | Better than 2S |
| Video channel characteristic | Differential gain DG≤1.5%, Differential phase DP≤1° |
| Audio output | Left and right channel and stereo |
| Dimension | 440*340*65mm(1U chassis) |
| Weight: | 3.8kg |
2). Portable Receiver with monitor: