User manual

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15. Tips and Tricks
Cable Placement (Optional: applies to wired cameras only)
If you are installing any cables directly into your walls or ceiling,
beware of placing them too close to electrical cabling. AC power
operates at a certain frequency (50 or 60 hertz, depending on your
locale) and this frequency generates a rather intense electromagnetic
field. Running cables too close to a AC cable will cause noticeable
distortion of your images.
Extending Cable Length (Optional: applies to wired cameras only)
It may be the case that you want to connect a camera farther
away from the monitor than the supplied cables allow. Whilst it is
possible to do this, please consider the following:
1) The longer the cable running from the camera to the
is, the more signal loss will occur during image transit. Signal
loss will show up first as fuzziness in the image, followed by image
noise and finally static (like that on an un-tuned television screen).
2) Signal loss becomes a real problem when dealing with longer
cables than those supplied. If you want to use a cable longer than
50m/150ft, be sure that it is a shielded cable.
3) Joining cables together is, generally, not recommended. Whilst
it is possible to do this, it usually causes more signal loss than using a
longer cable. Of course, if you are a few feet short with the supplied
cable, and just happen to have your own cables lying around, there’s
no harm in trying cables joined together and seeing what results you
get. We do, however, recommend purchasing a longer cable.