Review this manual and insure that all conditions are compatible with
the amplifier's specifications. Safe operation may be impaired if this
equipment is not used as intended.
GENERAL DESCRIPTION
This symbol is marked in the manual and denotes important safety
operation instructions. Please read carefully before continuing.
This equipment is suitable for a wide variety of scientific, industrial,
laboratory and communication applications where high levels of
electromagnetic Radio Frequency (RF) energy are required.
Therefore, the output of the amplifier must be terminated to an
appropriate load, such as a high power attenuator, dummy load, a
communication or radiation antenna. User must insure that radiated
energy do not violate
PROTECTIVE GROUND
This symbol is marked on the equipment and denotes protective ground
terminal.
This amplifier includes protective ground terminal. The equipment
shouldn't be used if this protection is impaired. The supplied power cord
must be used along with an uninterrupted external power source.
HAZARDOUS LINE AND RF VOLTAGES
This symbol is marked on the equipment where dangerous voltages are
present. Use extreme caution.
Both RF input and output connectors should be terminated prior to the
application of the external AC source. Otherwise, contact with the
RF output center pin can be dangerous. Place the amplifier in the
OFF position prior to connecting and disconnecting RF output load.
ELECTROSTATIC DISCHARGE (ESD)
This symbol is marked on the equipment where ESD sensitive devices
are present. Do not handle without the proper protection.
MAINTENANCE
Maintenance, repair and calibration must be performed by qualified
personnel only. Contact with the internal amplifier components maybe
dangerous even when the equipment is in the OFF position.
CAUTION This denotes a condition that may cause damage to the Amplifier if
procedure is not correctly performed. Do not proceed until the
indicated conditions are met.
FORCED AIR COOLING
Do not block the inlet and outlet of the internal cooling blowers.
Otherwise damage may result to the amplifier.
regulatory levels of electromagnetic interference.
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OVERVIEW
The BDA assembly enhances the coverage area of radio communications in buildings and RF
shielded environments.
The BDA has dual RF paths (Down-Link / Up-Link) to improve coverage in two distinct
frequency bands.
The unit features low noise figure and wide dynamic range. It is based on a dual duplexed
path configuration with sharp out of band attenuation allowing im proved isolation between the
receiving and transmitting paths. FORAM-AWSF-5/44-65-R3U15 provides up to 44 dBm on
the downlink and 5 dBm on the uplink. The composite power has up to 65 db gain.
FCC NOTE
The product has been tested and found to comply with the Booster requirements per FCC
Part 20 and 27.
IC NOTE
The product has been tested and found to comply with the Industry Canada (IC) RF Exposure
Requirements, pursuant to IC RSS-131.
NOTE
The Manufacturer’s rated output power of this equipment is for single carrier operation. For
situations when multiple carrier signals are present, the rating would have to be reduced by
3.5 dB, especially where the output signal is re-radiated and can cause interference to
adjacent band users. This power reduction is to be by means of input power or gain reduction
and not by an attenuator at the output of the device.
ANTENA INSTALLATION NOTE
Operation in the 1710-1755 MHz band are limited to a maximum antenna height of 10 meters
(~33 feet) above ground.
RF EXPOSURE WARNING-FCC
In order to comply with the FCC RF exposure requirements, the antenna installation must
comply with the following:
For UL signal, with 10 dBi gain antenna: The antenna must be installed so as to provide a
minimum separation distance of at least 20 cm (~7.9 inches) between the antenna
connected to the RF booster and the human user’s body within the area. (VSWR ≤ 2:1, Zo=
50 ohms and a cable attenuation less then 1dB).
For DL signal, with 10 dBi gain antenna: The antenna must be installed so as to provide a
minimum separation distance of at least 184.42 cm (~72.6 inches) between the antenna
connected to the RF booster and the human user’s body within the area. (VSWR ≤ 2:1, Zo=
50 ohms and a cable attenuation less then 1dB).
RF EXPOSURE WARNING- INDUSTRY CANADA
In order to comply with the IC RF exposure requirements, the antenna installation must
comply with the following:
For UL signal, with 10 dBi gain antenna: The antenna must be installed so as to provide a
minimum separation distance of at least 20 cm (~7.9 inches) between the antenna
connected to the RF booster and the human user’s body within the area. (VSWR ≤ 2:1, Zo=
50 ohms and a cable attenuation less then 1dB).
For DL signal, with 10 dBi gain antenna: The antenna must be installed so as to provide a
minimum separation distance of at least 263 cm (~103.5inches) between the antenna
connected to the RF booster and the human user’s body within the area. (VSWR ≤ 2:1, Zo=
50 ohms and a cable attenuation less then 1dB).
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Refer to Figure 1 for the
“OPERATION” section, later
BLOCK DIAGRAM DESCRIPTION
following discussion.
The downlink path of BDA
receives RF signals from
the base station, amplifies
the signal and transmits the
signal, without changing
the frequency, into a
Distributed Antenna
System at the direction of
the mobiles. The signal
travels over a DAS medium
that then dissipates the
signal to the Mobile
subscribers. The uplink
path receives RF signals at
the Mobile side from the
DAS system, then amplifies
it, and transmits the
amplified signal (without
changing the frequency) to
the base station.
This BDA supports Uplink
and Downlink, AWS
occupied distinct dedicated
frequency bands.
The diplexer isolates the
paths and route each signal
to the proper amplifying
channel.
An Automatic Level Control
(ALC) allows for output
power limiting. A variable
step attenuator gives 0 – 30
dB of attenuation in 2 dB
steps. The use of these
controls is covered in the