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Possible Cause:
There are two main causes for a Wireless Video
Sender not working - either physical interference
(walls, metla, etc) or signal interference (other
appliances at operating at the same frequency).
For the latter; all of our Wireless Video Senders
(such as the
GV45,
GV70,
GV80,
PC2TV,
DVDAW, etc) operate
at a frequency of 2.4GHz. If you have any
other wireless devices in your home, chances are
they also operate at 2.4GHz, and may cause
interference. The result will be that the
transmitted video may not viewable, or submerged in
interference lines.
Resolution #1 - Confirm on same channel
Firstly, confirm the devices are turning on (and
that power lights come on), and that you have the
correct transformers plugged into each unit.
Next, check that the Transmitter and Receiver are
set to same frequency channels; locate the channel
switch on both the Transmitter and Receiver and
confirm that their channel numbers match.
Resolution #2 - Shorten Test Range
Firstly, try locating the Transmitter and Receiver
directly next to each other. To test them, you
may need a portable video-source to temporarily
relocate next to the Transmitter (such as a DVD
player). Check if the video can be viewed on
the Receiver's connected TV:
If they do not work, either one/both of the devices
are faulty, or another wireless device in the home
is causing strong interference.
If they do work, then you've at least confirmed the
devices are functioning, and that the problem is due
to signal-range or signal-interference. If
possible, try slowly distancing the Transmitter and
Receiver, a few metres at a time. Try
relocating the Transmitter or Receiver into adjacent
rooms, and keep distancing them until the problem
recurs. The antenna on the Transmitter and
Receiver should be facing each other and parallel.
If at a certain distance the signal dies, then
chances are there is a physical interference, such
as a wall. Try moving the Transmitter or
Receiver to different parts of the room (this can
more easily be performed with an simple video
extender cable). Should this work, consider
permanently locating the Transmitter or Receiver in
that position as desired.
Resolution #3 - Change Frequency Channel
Since most wireless devices all operate at 2.4GHz,
they are usually designed with a channel-selector
(often with up to 4 channels provided). This
allows different devices to transmit at slightly
different frequencies, to alleviate interference
from one another. Note - the Transmitter
and Receiver must always be on the same channel, in
order to operate.
So take your Wireless Video Kit and set the small
channel-switch on both the Transmitter and Receiver
to channel 1. Then test the devices. If
there is still interference, increment the channel
switch once on both the Transmitter and Receiver and
repeat the test - continue doing this until either
the video signal is clearly viewable, or until you
run out of channel-positions.
Resolution #4 - Adjust Interfering Appliance
If you've tried setting the Transmitter and Receiver
to all possible channels, then chances are you have
multiple wireless devices in your home that are
interfering. Try switching off (unplug) all of
the following:
- cordless phones
- Wifi (wireless internet)
- other wireless Audio/Video Senders
- wireless security cameras
- anything else in the home that may transmit at
2.4GHz
Now try testing your Transmitter and Receiver.
If they now work - systematically switch on each
wireless appliance back on, and each time, test the
Transmitter and Receiver again. If you find an
appliance that is causing the interference, check if
that appliance has a channel-selector and trying
changing its channel. Note - this may cause it
to interfere with another wireless appliance, but
some wireless appliances can operate at the exact
same frequency as others without any problems.
It's simply a matter of trial an error, to find a
combination of what channel to put each wireless
appliance on.
Note - if you switch off all wireless appliances and
the problem still occurs, consider that your
neighbour may have a strong-powered wireless
appliance that is causing the interference.
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