G Way Solutions LABC3390R User Manual




Installation

and

OperatingManual



LTE–LowerA,B&CBands,Bi‐DirectionalAmplifier

BDA‐LTE/LABC‐33/33‐90‐R3U15


 

TABLE OF CONTENTS

TableofContents

OVERVIEW: ............................................................................................................................... 3

OPERATIONAL DESCRIPTION: .............................................................................................. 3

ELECTRICAL SPECIFICATIONS: ........................................................................................... 4

MECHANICAL SPECIFICATIONS: ......................................................................................... 5

ENVIRONMENTAL CONDITIONS: ........................................................................................ 5

FCC NOTE: ................................................................................................................................. 5

IC NOTE: ..................................................................................................................................... 5

NOTE: .......................................................................................................................................... 5

RF EXPOSURE WARNING: ...................................................................................................... 5

CONNECTIONS: ........................................................................................................................ 6

BDA-LTE/UC-33/33-90-R3U15 Mechanical Outline (Figure 2): .............................................. 7

OPTIONAL ALARM CONDITIONS: ........................................................................................ 7

INSTALLATION: ....................................................................................................................... 8

OPERATION: .............................................................................................................................. 9

FRONT PANEL CONNECTORS (Figure 3) ............................................................................ 10

INNER PANEL UL/DL GAIN ADJUSTMENT ....................................................................... 10

DIAGNOSTICS GUIDE ............................................................................................................ 11

Page | 2

OVERVIEW:

The BDA-LTE/LABC-33/33-90-R3U15 assembly enhances the coverage area of radio
communications in buildings and RF shielded environments.

The BDA-LTE/LABC-33/33-90-R3U15 has dual RF paths (Forward / Reverse) 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 improved
isolation between the receiving and transmitting paths.

OPERATIONALDESCRIPTION:

The BDA-LTE/LABC-33/33-90-R3U15 Downlink path receives RF signals from the
base station, amplifies the signal and transmits the signal 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 BDA-LTE/LABC-33/33-90­R3U15 Uplink path receives RF signals at the Mobile side from the DAS system, then
amplifies it, and transmits the amplified signal to the base station. The Uplink and
Downlink occupy two distinct dedicated frequency bands, each Uplink and Downlink
band is 18MHz wide.

For LTE Lower A, B and C Band, the frequency allocations are as follows:

Uplink: 698-716 MHz

Downlink: 728-746 MHz

Four diplexers isolate 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 “OPERATION” section, later in this document.

Page | 3

ELECTRICALSPECIFICATIONS:

Frequency Range : UL 698-716 MHz
DL 728-746 MHz

G-Wave units are factory tuned, there is no user-serviceable deviation from the
frequency bands listed above.

Pass band Gain @ min attenuation : 85 dB (Typ.)

Variable Step Attenuator Range : 0-30 dB
(2-dB steps)

Pass band Ripple : ±2.0 dB (Typ.)

Noise Figure (Uplink) : 4.5 dB (Typ.)

@+25°C at max gain

3rd Order Intercept point

Downlink : +52 dBm (Typ.)

Uplink : +52 dBm (Typ.)

Output Power (Composite)*

Downlink : +33 dBm (Typ.)

Uplink : +33 dBm (Typ.)

Isolation between Up/Down Link : 100 dB (Min.)

Input/ Output Impedance : 50 Ohms

2/3

*SFDR : 120 dB/Hz

VSWR (Input/Output) : <1.5: 1

Power Supply : 110VAC/0.66 Amps

: 220VAC/0.33 Amps
: 50 to 60 Hz

Page | 4