Swann Single Channel Digital Security Recorder 사용자 설명서

Poor Picture:

Realign antennas until image quality improves, slightly adjust the position of the Camera or 
Receiver. Change the location of the Camera, or use a different height or angle to see if the 
image improves. In some cases interference may be caused by another device on a similar 
frequency to the channel you are using.

Lines only - no clear picture: 

Check to confirm there is no microwave oven or other 2.4GHz equipment operating close by 
ie;  Cordless Telephones, Wireless Baby Monitors, Wireless LAN equipment etc . Make sure 
the Receiver is on the correct channel.

Picture ghosting or interference:

Some home appliances such as Wireless LANs, 2.4GHz portable telephones and 
Microwave ovens operate on or near the 2.4GHz frequency. If you receive interference from 
such an appliance, try moving the Camera or Receiver to location further away from the 
appliance or in the event of interference from a Wireless LAN device, try changing the 
Wireless LAN to a different channel to improve the signal quality.

No picture:

Check the receiver to confirm it is turned ON and make sure the A/V connection of the 
Receiver is not plugged into the Audio Out socket. Make sure the Receiver is on the correct 
channel. Check to ensure the camera is plugged in and has power. Check that the channel 
on the receiver is the set to Channel x.

Red haze over picture:

In some cases where the sun shines into the front of the camera a faint red glow can be 
seen. Move the camera to a shaded location, or fit a hood to stop sunlight entering the 
camera lens directly.

Foreground is dark while background is too bright:

If the camera is looking from a dark area towards a light area in some cases the automatic 
exposure can find it difficult to balance the image correctly. Change the location of the 
camera so that the point of greatest interest has the largest area of the image.(if you want to 
see the bright area, move the camera so that almost all of the screen shows this area. If you 
want to see the darker area, move the camera so that most of the image shows this area.

Fig. (1)

Unscrew front case at the seam 
anti-clockwise to remove

Frequency Channel Settings

To change wireless channels on your DVR, push the SET button on the front casing.  The 
light indicates the current wireless channel i.e. CH1, CH2, CH3, CH4.  Push the display 
button (DISP) to change views between your wired and wireless cameras.

Fig. (2)

Channel 1
Both switches up
2414MHz

Channel 2
Left up & Right down
2432MHz

Channel 3
Left down & Right up
2450MHz

Channel 4
Both switches down
2468MHz

Front view of lens with switches 
in top left, note the numbers 1 & 
2 indicated at the bottom of the 
switch

Changing these switch settings changes the frequency that 
the camera transmits on. Once you have set the channel on 
the camera, select the same channel on your RedAlert. If you 
experience interference try different channels. Make sure 
multiple cameras are set to different frequencies so you can 
use them in the same area with the DVR.