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2014年11月2日星期日

2W/5W backpack COFDM wireless mobile video transmitter and receiver

2W/5W backpack COFDM wireless mobile video transmitter and receiver

http://www.0086cctv.com/2w-5w-backpack-cofdm-wireless-mobile-video-transmitter-and-receiver
Introduction:
The Knapsack Digital Wireless Video Transmitter adopts the latest technologies of COFDM modulation and MPEG-2 image compression that enables good NLOS (Non line-of -sight) transmission with DVD quality video. The transmitter is compact size with power amplifier for longer-range transmission. This system has been widely used in many fields such as: Police Forces, First Responders, Security Services, Fire Services, Port Security, Homeland Security, Traffic Management, Police Technical Support Units, Special Forces, Military Command and Control Posts, Airport, Border Control, Major Incident Support.

Features:
■COFDM modulation, Stable transmission
■MPEG-2 video compression, DVD video quality
■Lithium battery for power supply
■Mobile and NLOS(Non line-of-sight) transmission
■Great security by encryption of AES 128 bit/ALLTECH Basic Scrambling
■Low system latency

■Modular design, compact structure, small cubage
■Several wavebands available: VHF/L/ S
■Strong casing with built-in cooling plates, waterproof and shockproof
■In LOS (line-of-sight)environment, the transmission range is up to 80km
Product Application:
The Knapsack Digital Wireless Video Transmission system is the ideal solution for first responders or military personnel entering hazardous environments. The first responder can carry the equipment on the back to enter accident ground and then the transmitter send the camera’s digital, compressed signals to the commanding center.
Transmitter Specification
Modulation COFDM
DC Input DC12.5V-DC14.8V
Working Current ≤2A@DC12.5V
Constellation QPSK、16QAM、64QAM (optional)
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
Bandwidth 2/4/8M(optional)
Frequency 325-399MHz, 400-500MHz, 500-760MHz, 760-860MHz
A/V Interface BNC/RCA
Power Output 27-33dBm (adjustable)in 1dB step
Flatness ≤2dB(within full frequency range), ≤0.5dB(within 20MHz)
CNR ≥-30dBm @ 30dB power output
Second Harmonic ≤-43dB
Video Harmonic 1Vp-p @ 75Ω,  PAL
CBER <2.0E-4
Video Compression MPEG-2 4: 2: 0
Resolution 720*576@8MHz
Video Rate 2-20Mbps(MAX)
Casing Protection IP66(dustproof, waterproof)
Battery 12.6V/10Ah
Frame Weight 1.1kg
Dimension 230*160*70mm
Weight 2.2kg
Multifunctional Receiver Specification:
Rx Frequency 170-860MHz VHF&UHF
Frequency Bandwidth 2/4/8MHz, optional
RF Input Level -94dBm~-15dBm(8M bandwidth)/-98dBm~-15dBm (2M bandwidth)
RF Input Impedance 50Ω
RF Interface N female
Modulation COFDM
Constellation QPSK、16QAM、64QAM (optional)
FEC 1/2,2/3,3/4,5/6,7/8 (optional)
Carrier 2K
Guard Interval 1/32,1/16,1/8,1/4  (optional)
Video decoding MPEG-2MP@ML
Aspect Ratio 4:3 16:9
Video Image 720*576@8MHz
Audio output mode Stereo unbalanced 300 / 200mv
Audio Output 2Audio Output + 2Video Output
Working Voltage AC220V/DC12V <2A
Temperature -20℃~+50℃
Dimension 480*260*45(1U Aluminium alloy box)
Weight 2.5kg


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