Swann SW344-DWD Operating Instructions Manual page 17

Recording Time:
If you were to manually set the ADW-400 to record constantly, how long will it
record for? Under ideal conditions, the ADW-400 uses a minimum of 8MB of
space per minute of recording.
Accordingly, we suggest that a 2GB SD card should only be relied on to record
approximately 3 hours (even then, there is a chance that the video might be too
large).
To avoid filling your SD card unnecessarily, we strongly suggest using the
Motion Detection recording mode. This way, the cameras will only record
when there's something to see, and you can ensure that the space on your
SD card is being used optimally.
Remember that if you have the Auto Delete function active, the unit will automatically
record over the oldest files when it runs out of space. This is important if there is a
particular incident that you want to backup - you'll need to copy it off the SD card
before it is over-written!
Manual Channel Changing and Auto-Switching
The default channel mode for the ADW-400 is Manual Channel Switching. When
channel switching is set to manual, simply press the Auto/Manual button to cycle
through available channels. The Manual icon will be displayed on the screen to let
you know that the ADW-400 is in this mode.
The Manual Switching Icon
You can set the ADW-400 receiver to automatically switch between all available
channels. To change the mode, simply press and hold the Auto/Manual button for
five seconds. The M icon will change to an "S" to let you know that the ADW-400
is in Auto-Switching mode.
The Auto-Switching Icon
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