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DVR Security System Review

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DVR Security System

Avermedia AverDiGi EB1704 Hybrid DVR

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The AverDigi EB1704 Hybrid DVR can accommodate up to 4 surveillance cameras, the system is also capable of recording audio on each of its four channels.  What’s unusual about the DVR is that it accommodates both analog and digital surveillance cameras.  The DVR uses MPEG-4 video compression and is compatible with both PAL and NTSC video signals, in NTSC mode the system can record video at a resolution of 720*480, this can be increased to 720*576 in PAL mode.

At maximum the DVR can record video at a maximum frame rate of 120 frames per second when using NTSC video signals, the frame rate slightly lowers when using PAL video signals to 100 frames per second.  Cameras attached to the DVR can be viewed on either a PC monitor or TV, the device is fitted with 1 composite video output and 1 VGA output.  The system is controlled through both Linux and RTOS (real time operating system) and both of these are embedded in the DVR.

Video recording can be activated by various means, you can set a schedule that determines when the system will start and stop recording.  If necessary you can record video with the device twenty four hours a day but this will require a lot of storage space.  Alternatively the system can be set to record at times when it detects motion on your attached surveillance cameras.  On top of this the DVR has an alarm input, when an external connected to the DVR is activated the DVR will detect its state and begin recording.

The DVR has one audio output so you can set up a two way audio system through the device.  For storing video the DVR has one hard drive bay and you can also connect USB compatible storage devices to the system.  The DVR also supports cameras with pan tilt and zoom functions and you can connect it to a computer network, this gives you further options when it comes to the locations that you can use to monitor and control the system.

A digital watermark feature is built in to the DVR so you can gives images captured by it a unique signature.  The DVR also has a password protection system so only selected personnel can control and operate the device.  Many of the functions of the DVR can be controlled through the buttons on its front panel, the DVR also comes with a remote control.  Video footage can be searched for by the systems event log or you can enter a specific date or time to find what has been recorded by the DVR.

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