User guide

Introduction
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1.3. Recording Capacity for DVR Drive Storage
The Explorer MX4 uses MPEG-4 video compression to extend the recording time on
the drive. The recording time varies, depending on the settings for frames per second
(speed), resolution (pixel count), and picture quality. The picture quality setting
determines the amount a picture is compressed versus the amount of memory the
picture takes up on the drive.
A lower picture quality of setting 1, for example, means higher compression and a
lower memory requirement.
A higher picture quality of setting 4, for example, means lower compression and a
higher memory requirement.
1.3.1. Estimated Recording Times in Hours for 500 GB Drive
Table 1-1 to Table 1-3 show the estimated recording time in hours at different settings.
Important: The average image size is dependent on the scene content, amount of motion, and the
lighting conditions. Actual recording times will vary greatly.
Table 1-1
MX4—Estimated Recording Times for 1 Camera
FPS
Picture Quality (3)
360×240 resolution 720×240 resolution 720×480 resolution
30 2793 hours 1235 hours 780 hours
15 5814 hours 3049 hours 1832 hours
10 7246 hours 3311 hours 1969 hours
5 13889 hours 7692 hours 4425 hours
Table 1-2
MX4—Estimated Recording Times for 2 Cameras
FPS
Picture Quality (3)
360×240 resolution 720×240 resolution 720×480 resolution
30 1397 hours 618 hours 390 hours
15 2907 hours 1524 hours 916 hours
10 3623 hours 1655 hours 985 hours
5 6944 hours 3846 hours 2212 hours
Table 1-3
MX4—Estimated Recording Times for 4 Cameras
FPS
Picture Quality (3)
360×240 resolution 720×240 resolution 720×480 resolution
15 1453 hours 762 hours 458 hours
10 1811 hours 827 hours 492 hours
5 3472 hours 1923 hours 1106 hours