--- In
[hidden email], "Paresh" <sunmoonyoga@...> wrote:
>
> If I get a desktop computer & move the cpu far away fr my desk,
> how is it done if I don't use wi fi? Is that what a router is for,
> or do you just use longer cables? In either case does it add more
> emf or troubleshooting problems? Thanks!!
Susvaagatam Paresh,
Without wireless, you'll need extension cables. It is relatively easy
and efficient to use extension cables with keyboards and
mice/trackballs. Additionally, you can also place RF chokes on the
extended cables to deter high-frequency signals from being transmitted
along them to the devices you're holding. (This is a good idea even if
you don't use extension cables.) Place the chokes near the end
connecting to the computer. These chokes are relatively inexpensive,
around 6 USD each. Most electronics hobby stores carry them. (If you
want to optimize the protection using this technique, you'll need a
meter to check the EMR along the cable length while you experiment
with cable and RF choke positioning.) Also avoid having the cables
near other EM sources to prevent capacitative coupling of high
frequency signals onto the cables, too. (Shielded cables can have
this problem, too, sometimes worse, so try cheaper unshielded cables
first.)
The biggest challenge is to get distance between your monitor and
computer. Passive (unpowered) extension cables for monitors are
limited in length because the video signals for the various color
channels can become out-of-synch; the higher your video resolution the
worse the effect is, the lower the resolution the better the video
signal can withstand extension. However, you may find a powered video
extender (repeater) can help here, but this introduces another
radiative device into the situation. [Some video extenders are
powered directly from the computer video connection (like some 2-port
keyboard/video/mouse switches aka KVM switches), and this can mitigate
some of your issue by giving a couple of meters from the main unit
from the start. The F1DK102P from Belkin is a good beginning.) RF
chokes can help here, too. You'll have to shop around and experiment
with the setup depending on your level of sensitivity.
You can also try a video projector connected to your CPU.
Unfortunately, these projectors have very strong fields. However,
you can project onto a screen or wall and sometimes get enough
distance from the projector and the CPU with keyboard and mouse cable
extenders to prevent ES symptoms.
Good luck with your configuration experiments and let us know how it
works out for you!
Locked
