3
System Description
The VideoWave Wireless Video Transmission is a professional system designed for
sending composite NTSC or PAL video signals using 1.4 GHz wireless technology.
Figure 1 - Transmitter connections
Figure 2 – Receiver connections
12V DC Adaptor
LED On/Video
BNC Video Input
SMA Antenna Connector
12V DC Adaptor
LED On/Video
BNC Video Output
4
Survey and Installation Guide
Before carrying out installation, it is important to bench test and familiarize yourself with the
equipment. This manual will help with antenna choice, transmission performance,
achievable distance etc.
Note: The longer the radio path the more critical details of installation become.
Bench Test
The Videowave system is supplied as standard with an ANT2350, Patch antenna. These
will be sufficient for testing and for use over short to medium distances (see table on Page
9).
Before testing the VideoWave equipment, connect the camera to be used, directly to the
monitor with a 75 ohm cable and check for correct operation.
Note: Do not power the transmitter without an antenna connected. Always disconnect
power to the transmitter before connecting the antenna. Failure to do so may damage the
unit.
Fit the antenna to the VTX unit (transmitter) and connect the power using the 12V unit
supplied (or the mains supply in an SE version). The LED will show RED indicating 'power
on'. Now connect the camera to the video input. When the camera is powered the 'on'
LED will change to GREEN, indicating the presence of a video signal.
Note: The unit will not transmit until it detects a valid video input.
Fit the antenna to the VRX unit (receiver) and connect the power. The LED will light RED
to show 'power on'. Connect the video output to the monitor. When the camera is turned
on, the LED will change to GREEN, indicating a video signal is being received. The picture
should appear on the monitor and be clear with no distortion.
System Performance
The VideoWave functions in exactly the same way as standard broadcast TV
transmissions, but on a much lower signal strength. TV aerials are normally installed as
high as possible to give the clearest signal path and achieve good reception. In most cases
if the external TV aerial is disconnected and replaced with a small indoor aerial, the
reception becomes poor. In the same way, VideoWave will always perform best by
adopting the same principle. Terrain, antenna height and signal strength will always be the
deciding factors in achieving good communications.
In an ideal installation 'LINE-OF-SIGHT' between the transmitter and receiver will give
optimum results (see Technical Notes). Obstacles blocking the line of sight will reduce
transmission distances and affect picture quality. The video signal may pass through walls
of brick or wood but metal objects will almost certainly block the signal; the denser the
obstacles the greater their effect.
Note: Metal objects near or directly behind the antennas may also have an adverse effect.
If possible carry out a survey to establish good communications before final installation
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