User's Manual

6
4 Introduction
The domo SOLO4 and SOLO2 product range enables the user to build
wireless digital microwave video systems. The domo SOLO4 and
SOLO2 products have been designed to provide rugged point-to-point
links for high quality full frame rate video, and audio, even in non line of
sight and urban environments.
Existing analogue systems suffer from impairments such as video noise,
loss of colour information and poor image quality when line of sight
cannot be maintained, and solutions based on wireless internet
standards and PC platforms deliver poor quality video.
The domo SOLO4 and SOLO2 system is a digital system that uses the
COFDM modulation technique, which effectively eliminates the
problems caused by multipath and reflections.
The SOLO product range allows law enforcement, surveillance and
emergency service communities to now receive the highest quality
video images, in real time, direct from personnel, buildings and vehicles.
The domo SOLO2 system employs the DVB-T 2K carrier COFDM
technology.
The domo SOLO4 system employs a revolutionary narrow band
2.5MHz COFDM technology which demonstrates better propagation for
longer range links, and extra bandwidth efficiency. The domo SOLO4
system can also be upgraded to include a 1.25MHz COFDM modulation
and MPEG4 compression for excellent range performance.
The domo SOLO4 and SOLO2 systems employ common transmitter
and receiver hardware.
 The SOLO4 and SOLO2 transmitter is a lightweight, low-power
transmitter suitable for body-worn applications where size, weight and
power consumption are at a premium.
 For longer range applications such as vehicle transmissions, the
SOLO4 or SOLO2 transmitter can be upgraded with the use of a
booster amplifier.
 The SOLO4 and SOLO2 receivers are diversity input receivers with
extensive built in spectrum analysis tools. The receivers can be fitted
with an optional NETSTREAM card, which then gives the option of
streaming the received video onwards over IP networks.
IMPORTANT NOTE
The SOLO4 and SOLO2 product range has been specifically designed for government
security and law enforcement users, the equipment will tune across frequencies that are
only available to licensed government users. Non-government users should employ the
equipment restricted to the license exempt bands only typically 1.389 to 1.399GHz, 2.400
to 2.483GHz and 5.725 to 5.875GHz