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4channel Radio Cofdm Receiver with Duplex Audio

China 4channel Radio Cofdm Receiver with Duplex Audio, Find details about China Cofdm Video Receiver, Wireless Video Receiver from 4channel Radio Cofdm Receiver with Duplex Audio

Model NO.
MV2025RH8
Color
Black
Trademark
ALLTECH
Specification
SGS
Origin
Shenzhen, China
Model NO.
MV2025RH8
Color
Black
Trademark
ALLTECH
Specification
SGS
Origin
Shenzhen, China
4channel Radio Cofdm Receiver with Duplex Audio
Functions & Features:
n  4-CH A/V signal simultaneously receiving
n  Builtin 4-CH A/V synchronous hard disk video recorder for video recording, video file play and backup
n  MPEG-2/MP@ML/4:2:0 DVD decoding standard
n  En/decryption transmission
n  Channels parameters panel configurable
n  Full-featured PTZ camera remote control
n  Wide working voltage range with feed short circuit protect and indication
n  High definition image and hi-fi stereo output
n  COFDM demodulation and high receiving sensitivity (single antenna -92dBm, diversity receiving-96dBm )
n  Video receiving bandwidth adjustable, broadcasting level standard
n  Conference microphone and MIC audio input
n  GFSK digital audio modulation
n  Narrow audio transmitting bandwidth and high channel utilization 
n  Audio sending time controllable to reduce the power consumption subject to situation
n  Audio sensitivity adjustable with useless noise shielding 

4channel Radio Cofdm Receiver with Duplex Audio

Power Supply
Working voltage VAC220V±20V
Working current A≤5.5A@DC12.5V (if audio transmission is off)
≤11.5A@ DC12.5V (if audio transmission is on)
Video Receiving
Frequency input range170MHz~860MHz
RF bandwidth1.25/2.5MHz or 6/7/8MHz
Rx sensitivity-96dBm~-20dBm@8M/-106dBm~-20dBm@1.25M
DemodulationCOFDM
Video decoding standardMPEG-2/MPEG-4 compatible
ConstellationQPSK/16QAM @ 1.25/2.5MHz; QPSK/16QAM/64QAM @ 6/7/8MHz
FEC1/3, 2/3@ 1.25/2.5MHz; 1/2, 2/3, 3/4, 5/6, 7/8 @ 6/7/8MHz
Carrier2K
GUI1/8, 1/16 @ 1.25/2.5MHz; 1/4, 1/8, 1/16, 1/32 @ 6/7/8MHz
Video output level1~1.2Vp-p@75Ω
Video output formatPAL/NTSC
Video white bar amplitude mV650~720mV
Video synchronous amplitude mV260~275mV
Video amplitude-frequency characteristic  dB0~4.8MHz-0.5~1.5
5.5MHz-4.0~1.5
Rx feed output voltageDC10V~DC12V
Rx feed output current (MAX)300mA@DC12V(MAX)
Audio outputRight channel
Command
Command air baudrate600bps~19200bps
Power output≥32dBm
Keyboard communication protocolPelco-P such multiple protocols with baudrate adjustable
KeypressRubber button, numeric keypad, camera function keys
Audio Transmission
Audio Tx frequency470.5~479.950MHz, factory setting:479.950MHz
Audio Tx power output≥40dBm
Audio Tx modulationGFSK
SHG>62dBc
Frequency interval150KHz
Audio encoding overall bitrate4800bps
Audio sample8KHz  16bit
Audio Tx delay1~60 S
Audio input signal strength (MAX)320mVpp
Hard Disk Recording
Video formatPAL/NTSC
Video encodingH.264
Video resolutionD1, CIF, QCIF
Video frame rateAdjustable, standard: PAL, 25f/s;  NTSC, 30f/s
Video bitstreamD1 (1000~1500kbps), CIF(400~600kbps), QCIF (192~384kbps)
SATA hard drive capacity500G
Video Display
Monitor size10.4 inch
Aspect ratio4: 3
LCDTFT LCD
Display area (mm)211.4×158.4
Maximum resolution640×480
Dot pitch0.33mm
Display color16.2  M
Brightness250cd/m 2
Contrast350:1
Response time5ms
Physical Interfaces
Video output interface75Ω, BNC, 1~1.2Vp-p
Audio output interface600Ω, single track, lotus socket
Rx RF input interface50Ω, N socket
Tx RF output interface50Ω, UHF socket
Audio inputConference microphone 6.35mm, MIC 3.5mm
USB interfaceMountable USB flash disk video recording
RS232 control interfaceDB9 male, standard RS232 level, 9600, 8, N, 1
RS232 data interfaceDB9 male, standard RS232 level, support 1200~115200
Network interfaceRJ45, 10/100M self-adapted
DC power inputAnton bauer mount
AC power input3-core power IEC socket
Environment
 
Working temperature-25°C~55°C
Storage temperature-40°C~70°C
Appearance
Dimension600mm×391mm×230mm
Weight16.5kg
Battery weight1.1kg
Color
 		Black

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