Standalond Digital Video Recorder DVR NT-D8604DH-E(E3)

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Standalond Digital Video Recorder DVR NT-D8604DH-E(E3)

• Support 3G dialing,WIFI
• Support multiple web browsers
• 2 USB port to support mouse,backup,burn 
  and upgrade etc.
• More than 20 kinds of languages 
• Operation:Embedded Linux
• Dual stream:  Can be set up in each channel
• GUI:16-bit,Display split:1/4/8/9/16
• Image coding:H.264 
• Video: 4ch D1 real time
• Video input:4XBNC,(1.0Vp-p,75Ω)
• Audio input:4×RCA 
• Video output:1BNC,(1.0Vp-p,75Ω),1VGA,HDMI 1080P

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Q:Monitor the camera what models
The hemisphere of the shooting of the infrared high-speed ball speed dome monitoring equipment surveillance camera Beijing United States and the United States and China Science and Technology Co., Ltd.
Q:What are the problems with the surveillance camera?
What things used for a long time more or less will be some problems, there are many causes of these problems, there may be the quality of the camera itself, a part of the problem, there may be improper installation, improper connection or use too long some Normal damage or other cause
Q:Video surveillance camera pixel 1080P what it means
Meaning that the camera to collect the high definition of the screen, can support high-definition 1920x1080 resolution format video and record, reference: General DVD resolution is 720x480;
Q:Monitor the camera to take pictures at regular intervals
Is a powerful remote digital monitoring system, with network monitoring, digital video and network broadcast function. You only need the camera + Webcam Watchdog to add remote monitoring to your computer to help you monitor your store, home, factory, school and public places, so you can keep up-to-date on-site. The main functions are: 1. Easy installation settings; 2. All-weather digital video; 3. Automatically detect intruders; 4. Remote viewing video files; 5. Password protection; 6. Network simultaneous display playback; Monitor date and time.
Q:What is the difference between monitoring the camera and the usual?
Monitoring the installation of the camera, generally need to use a few meters to tens of meters ranging from the transmission distance, but in accordance with the provisions of the USB standard, USB device, the longest transmission distance is 5 meters, so USB can not be used for long distance, that is, we use USB camera to do the first problem encountered monitoring. While the 75-5 / 128 video cable can transmit signals over long distances! (Up to 400 meters).
Q:Police surveillance camera and civilian What is the difference?
Police cameras and digital cameras are basically no difference, but for some special occasions, some of the requirements.
Q:Monitor the camera lens focal length is what the situation according to the scope of the big focal point what the situation according to the clear
The larger the focal length, the smaller the field of view, the larger the person in the picture, the clearer the detail.
Q:Monitor the camera what is the zoom
The lens is equivalent to the human eye lens, if there is no lens, the human eye can not see any objects; if there is no lens, then the camera output image is a vast expanse of white, no clear image output, which with our home camera and camera principle Is consistent. When the human eye can not stretch the lens to the normal position, that is, people often say myopia, the front of the scene becomes blurred; camera and lens with a similar phenomenon, when the image becomes unclear , You can adjust the camera's back focus, change the CCD chip and the lens reference plane distance (equivalent to adjust the position of the human eye lens), you can blur the image becomes clear. Thus, the role of the lens in the closed-circuit monitoring system is very important. Engineering designers and construction workers should often deal with the lens: the designer according to object distance, imaging size calculation lens focal length, the construction staff often on-site commissioning, part of the lens is to adjust to the best condition.
Q:Ask the professional to answer, monitor the camera with water ripples
To distinguish between power problems and ground loop problems, an easy way is to control the host, the nearest access to a power supply without a problem camera output signal, if the monitor does not appear on the interference phenomenon , Then the control host no problem. Next, you can use a portable monitor near the video output of the front-end camera, and check each camera one by one. If so, then processed. If no, the interference is caused by ground loops and other reasons.
Q:Monitor the image of the camera appeared black and white colorless situation, is this how is it?
First of all, you first look at the monitor is not set to black and white and then in the hard disk video recorder you look at the system is not wrong

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