8104JM4

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产品技术规格书 (Product specification)
产品型号：GD8104				版本：A
产品描述：四画面无线DVR发射机				日期:2012-1-18
序号	项目(Item)	单位(Unit)	规格(Specification)	备注(Remark)
Camera
1	镜头规格(The lens specifications)		F/No=2.0，f=2.4mm
2	色彩类型(Color type)		日夜型
3	水平视角(Horizontal Angle of view)	degree	70±5
4	视频制式(Video formats)		NTSC/PAL
5	图像传感器(Image sensor)		1/5',CMOS
6	有效像素(Effective pixels)	Pixels	656*488
7	最低照度(Minimum illumination)	Lux	0 (IR ON)
8	夜视距离(Night vision distance)	m	3~5
9	红外照明(Infrared lighting)		940nm; IR LED
10	IE LED启动/关闭门限(IE LED to start/close the threshold.)	Lux	≦2lux, IR LED ON
10	IE LED启动/关闭门限(IE LED to start/close the threshold.)	Lux	≧15lux, IR LED OFF
Video
11	视频帧率(Video frame rate)	fps	30(max)
12	视频分辨率(Video resolution)		VGA
13	视频编码格式(Video resolution)		MPEG-4
Audio
14	频率响应(Frequency response)	Hz	50~15000
15	音频采样精度(Audio sampling accuracy)	Bit/KHz	16bit/8Khz/Mono
16	音频压缩格式(Audio compression format)		PCM
17	麦克风灵敏度(Microphone sensitivity)	dB	≦-38db
PIR
18	感应波长(Induction wavelength)	um	7~14
19	感应距离(Induction distance)	m	≦5
20	感应角度(Angle of induction)	degree	≧100
RF
21	工作频率(Working frequency)	MHz	2400－2483.5
22	数据带宽(Data bandwidth)	Mbps	4.4（20dB BW）
23	调制/解调方式(Modulation/demodulation.)		16QAM,QPSK,BPSK
24	发射功率(Transmission power)	dBm	+14dBm@ 16QAM EVM 5%, +18dBm @ QPSK EVM 8%
25	接收灵敏度(Receiving sensitivity)	dBm	-72dBm@QAM, -85dBm@QPSK
26	安全性(Security)		proprietary frequency hopping signaling with digital modulation
26	安全性(Security)		32Bit ID
27	天线增益(Antenna gain)	dBi	3(Omni-directional Dipole)
28	无阻碍传输距离(No obstruction to transmission distance.)	m	＞200
General
29	电源适配器(Power adapter)		DC +5V/2A
30	工作电流(Working current)	mA	400（max）
31	重量（Weight）	g	300±30
32	尺寸(Size)	mm	1326457mm(长宽高,不含支架）
33	防水等级Waterproof level		IP54
34	工作温度(Operation Temperature)	℃	-10～+50
35	储存温度(Storage Temperature)	℃	–20～+60
36	工作湿度(Operation Humidity)	RH	15%~85%

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