Axell Wireless Limited
Technical Literature
UHF Dual Band Line Amplifier
Document Number 55-227901HBK
Issue No. 4
Date 23/06/2014
Page 8 of 30
1.
Antenna Specifications and Installation Criteria
WARNING!!!
o
This Dual Band Line Amplifier is specifically designed for in-line radiating
cable operation and must not be directly connected to an off air radiating
antenna.
o
The installer is held accountable for implementing the rules required for
deployment.
o
Good engineering practice must be used to avoid interference.
o
Output power should be reduced to solve any IMD interference issues.
This chapter provides information on the donor source feed and server output radiating infrastructure
associated with the Line Amplifier equipment.
1.1.
Base (Donor) Input
The Base (Donor) input is normally provided from the attenuated end of an existing radiating cable of
from an in-line coupler used to coupler off a sample of the main line signal for downlink amplification.
In the uplink direction a low level signal is fed back into the donor cable for retransmission to the base
station equipment. The output signal of the Line Amplifier is not transmitted to air.
1.1.1.
Required Input Information
You will require the following information:
Number of carriers
Carrier Power
Length and type of radiating coaxial cable connecting the Donor system to the Line Amplifier and
the attenuation.