Installation and Operation Guide
13
Caring for your product
The product does not require regular servicing. Caring for your
product as described in this guide will help maintain the product
in good operational condition.
Always wear eye protection when using brushes or other tools to
clear debris from connectors or other parts of the product.
Do not use chemicals, aerosols or abrasive cleaners. Chemical
coatings must not be applied to any part of the terminal or
battery.
Clean the exterior surfaces using a lint free soft cloth.
Check cable connections regularly to ensure that they are
secure.
Duplexer specifications
An optional duplexer can be used with the repeater. The
duplexer allows the repeater’s receiver and transmitter to
operate on a single antenna at the same time. When operating
within neighbourhoods where other RF devices are installed,
including broadcast antennas and microwave link transmitters,
the duplexer prevents interference with other RF devices.
The duplexer can be connected externally to the repeater.
The duplexer must comply with the recommended technical
specifications below:
Frequency Range .................................................... 400-470MHz
Bandwidth ....................................................................
±
400KHz
Insertion Loss.................................................................... <1.0dB
Isolation.............................................................................. >80dB
Suppression ....................................................................... >80dB
V.S.W.R ................................................................................ <1.3
Nominal Impedance ............................................................... 50
Ω
