e2v ARGUS 13, Руководство пользователя и условия гарантии

Страница: 18 / 39

The performance of the system will allow a transmitting range of greater than
1 km (0.6 mile) line of sight. This will be reduced when used inside buildings and
will vary depending on the construction of the building and how many walls etc.
are between the camera and the receiver.
Due to the relatively low power of the system and the high frequency used (1.4
or 2.4 GHz) it is normal for the received picture to break up momentarily when
the camera is moved. This break-up is caused by multi-pathing of the signal as it
bounces off objects and people between the camera and the receiver.
The transmitter is available in two frequencies, 1.4 GHz and 2.4 GHz, depending
on the local licensing regulations of the country of use.
. 1.4 GHz Transmitter
The transmitter is supplied as a single-channel 200 mW system and is
MPT1349 approved for use in the UK only. The transmitter should be used in
conjunction with the Receiver Kit DAS548076AA or the Receiver Case.
.
2.4 GHz Transmitter
The transmitter is supplied as a two-channel 300 mW system and is FCC part
90 approved for use in the US. The transmitter should be used in
conjunction with the Receiver Kit DAS547874AA or the Receiver Case.
3.3 RECEIVER KITS
Both the receiver kits provide a standard 1.0 V video output and are designed for
use with a separate video monitor (not supplied). The receiver requires 12 V dc
power, either from a vehicle supply or the mains adaptor supplied. The antenna
can be mounted on a pole if required and is connected to the receiver by a 3 m
(10 ft) long cable.
14