A1.130726
GSM+DCS+3G/UMTS/WCDMA
Tri-band Mini Repeaters
USER'S MANUAL
Thank you for choosing series GSM+DCS+3G/UMTS/WCDMA
Mini Repeater.
series Repeater is used for amplifying the mobile
phone signal. They can make you keep in touch with others freely even in
the place with weak signal.
To make you quickly be familiar with the operations of this repeater,we
offer detailed user manual together with repeater. And you can get
information including product introduction, using method, system setting
and safety notice, etc.
We carefully and cautiously write this user manual and believe the
information provided in the manual is correct and reliable. It is hard
to avoid happening some errors or omissions, so please excuse us
and sincerely appreciate your valuable comments.
NOTE
The repeater meets the uplink and downlink isolation degree index. Since the
link isolation degree is inuenced by the isolation degree of antenna and feeding
system (between donor antenna and service antenna). It requests that antenna
and feeding system isolation degree should be more than 10dB of mini repeater
gain. otherwise it will cause tri-band mini repeater internal self-excitation that leads
to interfere base station or to destroy mini repeater under serious self-excitation
conditions.
That is why you should ensure the isolation degree between donor antenna
and service antenna is larger than 80dB when installing the mini repeater,
otherwise our company will take no responsiblity for any effect caused by improper
installation.
Preface
1
Preface
System Working Sketch Map
Summary
Features and Functions
Standard Accessories
Optional Accessories
Working Principle
Specication
Getting Acquainted
Installation and Debugging
Preparation before Installation
Installation Process
System Debugging
Attention Items of Installation
Frequently Asked Questions
Tri Band Mini Repeater System Self-excitation
Frequent Soft Handoff
Tri Band Mini Repeater with Low Gain
1
2
2
3
3
4
5
6~7
7
7
7~9
10
10~11
11
11
11~12
12
USER'S MANUAL OF MINI REPEATER
1
SYSTEM WORKING SKETCH MAP
2
3
SUMMARY
FEATURES AND FUNCTIONS
With rising level of communication consumption, people's inquiry about mobile
communication is increasing day by day, as well as mobile communication service
quality .It requires telecommunication operator to improve telecommunication network
quality and extend coverage.
How to improve mobile communication quality and extend coverage has become
an important topic for each operator. Electromagnetic wave sent by mobile
telecommunication base station is affected by all kinds of objective factor, such as
landform, building, so it could not cover each corner where people may reach. If it only
depends on increasing the quantity of expensive base station to solve the problem, it
will surely increase enormous operating cost of the operator, especially for areas with
litter trafc, it also will exert adverse inuences on operator's competitiveness. Tri-band
mini repeater is used for making up base station coverage area failures, amplifying
base station coverage area and filling coverage in blind area. It is mostly fitted for
installing in residence community, underground emporium, parking lot, supermarket,
hotel, ofce, metro, tunnel, high-rise buildings, etc to amplify indoor cell phone signal. It
is most economical and effective way to resolve cell phone signal problem in blind area.
It makes your communication via cell phone more conveniently anytime and anywhere.
Beautiful, easy to install and cost-effective.
With high Q medium duplexer, medium filter and SAW surface filter, ensure the
system isolation degree.
With ALC automatic control and reflection protection circuit, avoid accidentally
damage.
Full-duplex, double -ports design, internal power supply, safe and reliable.
Clear mode display, easy operation and expedient maintenance.
2
USER'S MANUAL OF MINI REPEATER
3
STANDARD ACCESSORIES
Optional Accessories
A.Mini repeater
A
.2 way power splitter
C.QX-002B Indoor directional antenna
ST-XG-9-300/2500VYB
Gain 7 dBi(824-960MHz)
9dBi(1710-2500MHz)
ST-XG-9-800/2500V6
Gain 7 dBi(824-960MHz)
9dBi(1710-2500MHz)
D.QX-004B Indoor directional antenna
B
.Microstrip coupling
B.Outdoor antenna 9dBi
D.18m Cable to connect
donor antenna
E.5m Cable to connect service
antenna
C.Indoor omnidirectional
antenna (3dBi)
F.Screw and plastic plug
QX-004H
QX-009C (SYWV-50-7) QX-007C (SYWV-50-7)
QX-001B
Note: Choose to buy low-waste cable and high gain indoor antenna to strengthen
thesignal.
4
5
WORKING PRINCIPLE
The basic principle of broadband tri band mini repeater is that donor antenna receives the
downlink signal from mobile communications base station, through high selectivity band-pass
lter to well isolate the out-of-passband signal, after amplifying by intergrative power amplier,
then transferred by service antenna; meanwhile on the way of uplink path, signal of mobile
phone in the coverage area is transmitted to the relevant base station after disposing by uplink
amplifying link path by same working mode. It achieves seamless connection between mobile
telecommunication base stations and mobile phone, thus extends the covering range.
Sketch map as below:
Broadband Tri Band Mini Repeater System Principle Diagram
Donor antenna
Combiner
Combiner
Integrative module
Integrative module
Integrative module
Service
antenna
4
USER'S MANUAL OF MINI REPEATER
5
SPECIFICATION
GSM+DCS+3G/UMTS/WCDMA Mini Repeater Technical Index
Test item Unit
Specication
Remark
uplink downlink
Frequency
Range
GSM
+
DCS
+
WCDMA
MHz
890~915
1710~1785
1920~1980
935~960
1805~1880
2110~2170
Rated power
dBm
≤
23
≤
23
ALC control range
dB
≥
20
≥
20
Output varies ±1.5 or
close and resume
Gain
dB
≥
60
≥
70
Max input power
dBm
≤
-35
≤
-45
CDMA800band dBc
≤
-15
Dual-band Spacing:
1.23MHz
GSM900band dBc
≤
-40
Dual-band Spacing:
0.6MHz
DCS1800band dBc
≤
-40
Dual-band Spacing:
0.6MHz
PCS1900band dBc
≤
-40
Dual-band Spacing:
0.6MHz
3G/UMTS/WCDMAband
dBc
≤
-40
Dual-band Spacing:
5MHz
In-band Fluctuation dB
≤
5.0
Gain
adjustment
adjustment range dB 31/1dBstepping
adjustment error dB
≤±
1.5
Noise Figure dB
≤
6 Max gain
Port VSWR
≤
2.0 Electrify test
Group delay
≤
5
Voltage
DC
V
9
AC
V 110
~
220
Working current (DC)
A 5
Working temperature
℃
-25~+55
Impedance
Ω
50
RF connector
NK
Inter-modulation
Attenuation
6
7
GETTING ACQUAINTED
BS:Donor antenna
MS:Service antenna
GSM:uplink gain adjustment switch
DCS:uplink gain adjustment switch
3G/UMTS/WCDMA:uplink gain
adjustment switch
GSM:downlink gain adjustment switch
DCS:downlink gain adjustment switch
3G/UMTS/WCDMA:downlink gain
adjustment switch
GSM:uplink signal indicating light
DCS:uplink signal indicating light
3G/UMTS/WCDMA:uplink signal
indicating light
GSM:downlink signal indicating light
DCS:downlink signal indicating light
3G/UMTS/WCDMA:downlink signal
indicating light
Attention:
Just one band is occupied when cell phone is working, therefore, in
general usage of tri band repeater, only downlink and occupied band for uplink
indicating light illuminate.
Switch moving up as 1 makes gain
attenuation, while switch moving down as 0
makes gain remain original. Factory default
setting: all switch down. For example,
when switch 1 and switch 4move up, the
corresponding truth table attenuates 9dB.
When BS connection port receives GSM/
DCS/3G signal which surpasses-50dBm,
indicating light lightens or twinkles. Now
the device receives well and it's able to
communicate normally.
When BS connection port receives GSM/
DCS/3G signal with surpasses -60dBm,
in d i c at i n g li g h t sh o w s in G r e en . N o w
the device receives well and it's able to
communicate normally.When system internal
self-excitation, the indicating light from Green
to Orange, to overcome the self-excitation
please reference to common problems.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6
USER'S MANUAL OF MINI REPEATER
7
Note : Dial switch up as 1 ,
Dial switch down as 0
Gain adjustment truth table:
attenuation
dB value
1 2 3 4 5
attenuation
dB value
1 2 3 4 5
attenuation
dB value
1 2 3 4 5
1dB 1 0 0 0 0 12dB 0 0 1 1 0 23dB 1 1 1 0 1
2dB 0 1 0 0 0 13dB 1 0 1 1 0 24dB 0 0 0 1 1
3dB 1 1 0 0 0 14dB 0 1 1 1 0 25dB 1 0 0 1 1
4dB 0 0 1 0 0 15dB 1 1 1 1 0 26dB 0 1 0 1 1
5dB 1 0 1 0 0 16dB 0 0 0 0 1 27dB 1 1 0 1 1
6dB 0 1 1 0 0 17dB 1 0 0 0 1 28dB 0 0 1 1 1
7dB 1 1 1 0 0 18dB 0 1 0 0 1 29dB 1 0 1 1 1
8dB 0 0 0 1 0 19dB 1 1 0 0 1 30dB 0 1 1 1 1
9dB 1 0 0 1 0 20dB 0 0 1 0 1 31dB 1 1 1 1 1
10dB 0 1 0 1 0 21dB 1 0 1 0 1
11dB 1 1 0 1 0 22dB 0 1 1 0 1
INSTALLATION AND DEBUGGING
Preparation before Installation
Installation Process
Project Reconnaissance Design
a. Conrm the coverage area of broadband tri band mini repeater
b. Forecast coverage effect and conrm project
By reconnaissance on the spot, you can make sure outdoor antenna locations and
then conrm the indoor antenna as per the coverage area you want to cover. The
indoor antenna should be installed in the central point of coverage area. In order
to make project plan more correctly, it is often to go on field intensity coverage
prediction on these areas. Conrm mini repeater working parameter, such as gain,
output power and antenna model and so on to supply theory basis for system
adjustment and testing.
Design, install and debug antenna and feeding system
Antenna and feeding system design and installation are so important parts of tri
band mini repeater project. Antenna and feeding system relates directly to using
outcome from wide band tri band repeater. When doing the design, please pay
attention to the distance between outdoor and indoor antenna, insulation degree and
port VSWR. Cable jamming network should be connected into grounding system
8
9
a.Indoor Antenna Installation
Please rstly t the indoor antenna in the middle point of desired coverage area as per
Picture 1 and then directly x the antenna by supplied ower nut board.
b.Outdoor Antenna Installation
Please install the antenna as per antenna mark "UP" in
the outdoor antenna installation process. It can make sure
antenna water-drainage held down. And then make the
antenna hold in postion by assorted two U threaded bolt as
per Picture 2.
Installation of broadband tri band Mini repeater
1. According to the install pitch 384.5*128.5 of repeater, use the electric drill to drill 4
holes in the place that had chosen and put into the plastic plug.
2. Use screwdriver remove the upper cover in repeater (show as picture), the mounting
holes aim at plastic plug hole, then use the screws to x the repeater.
Picture 1
Picture 2
U Threaded Bolt
Tight Clip
Connector
Hold Pole
(Self-supplied)
8
USER'S MANUAL OF MINI REPEATER
9
Connect RF cable and power supply as per the remarks on boardband tri band
mini repeater panel, at the same time earth the case of repeater. Connect Service
antenna to MS port, Donor antenna to BS port. Seal the RF cable joint to avoid rust
caused by water leakage, which resulted VSWR in bad and inuence using. Note
whether there are any eyewinker falling into mini repeater or not before turning on
the switch.
Donor antenna
Base station
Mini repeater
Ceiling antenna
Flatpannel Antenna
Mini repeater
Donor antenna
Service antenna
10
11
System debugging
a. Before switching on the power supply, please conrm the AC power input is standard
value again. Antenna cable and tri band repeater are well connected. Indoor antenna
keeps more 12 meters on horizon and vertical range with outdoor antenna.
b. Switch on the power to start the device, the red indicating light of power supply on the
panel lightening indicates the power has been connected and the repeater has begun
working.
c. Making outdoor antenna in position, now downlink indicating lights lighten or twinkle.
Otherwise, it can change outdoor antenna installation place or tilting angle of outdoor
antenna until downlink indicating lights lighten or twinkle.
d. Please install the indoor antenna in the central point of coverage area. And you go on
cellphone test at every corner of coverage area. According to the test results, please
optimize the mini repeater parameter installation place further and also the syestem
holding priority of up link signal indicating light lightens or twinkles. Right now, it means
that cell phone signal is well and it is able to communicate normally.
e. After nishing the installation, please make sure of spectrum analyzer or other measurement
devices to test relevant parameter whether it is met design requirements, especially to check
the VSWR, receiving and transmitting antenna isolation degree, downlink receiving
led intensity etc. If the receiving led strength is too weak,you can adjust the angle
and direction of the outdoor antenna. If receiving led intensity is too strong, you can
consider adding xed coaxial attenuator in BS communciation port or adjusting pitch
angle so as to lower the receiving electrical level. You also can do attenuation gain
adjustment to lower amplifying function from repeater.
Attention Items of Installation
a. Donor antenna should be installed away from the service antenna, at least 12m, and
the position where is 2m higher than the ground.
b. Service antenna is ceiling antenna which can be installed in ceiling and directed the
axis vertically to the ground. Please select the proper position to make the signals
distributed equally to every corner. If you choose directional atpannel antenna install
in ceiling or wall, put antenna panel directly point to coverage area.
c. After all the RF cable has been installed, you should have an overall inspection to
prevent open-circuit and short-circuit. Because if the cable happens open-circuit or
shor-circuit. one part will not be able to work normally under slight damage conditions,
but it will destroy main device under worse conditions.
10
USER'S MANUAL OF MINI REPEATER
11
Tri- band mini repeater system self-excitation
a.The reason of Self-excitation phenomena: the isolation degree of antenna is not
enough (indicator light shows in "orange")
b.There are two methods to overcome the self-excitation phenomena. One is to
enlarge the isolation degree between donor and service antenna; the other is to
reduce mini repeater's gain. When the desired coverage area is smaller, your can
just use the second method.
When the desired coverage area is larger, you should adopt the frist method. It
mainly adopts the following methods to enlarge isolation degree in project:
1) Enlarge the horizontal and vertical distance between donor and service
antennas.
2) Add barriers, such as shielding net.
3) Enhance the direction of donor antenna, such as paraboloid antenna.
4)Utilize landform and building to enhance isolation degree.
In addition,device trouble and poor contact of cable joints,which cause high VSWR,it
also will cause self-excitation. But generally situation occurs barely. In the installation
project, self-excitation is mainly caused by small isolation degree of antenna and
feeding system.
The simple way to judge whether the device has self-excitation: Connect dummy
load to MS or BS port of repeater, when the power indicator light is on, you can
judge that the device itself exists self-excitation.
Frequent soft handoff (namely ping-pong phenomenon)
It mainly indicates that in the mini repeater coverage area,mobile phone users have
been switched repeatedly among two or more pilot frequencies of base station,and
usually connect into many base stations at the same time. The reason is the mini
repeater antennas are installed improperly; donor antenna has been installed in the
area where the coverage of base stations overlaps, and receives pilot frequency
signals from many base stations,the signals have similar intensity and alternately
FREQUENTLY ASKED QUESTIONS
d. To prevent affecting signal coverage range caused by oxygenation resulting from
moisture, all joints should be sealed by water-resistant adhesive tape, avoiding
water leakage into mini repeater through cable causing short-circuit.
12
Mini Repeater with low gain
The reason why mini repeater with low gain mainly is setting gain attenuation. To have
reset will work.
reign. The signal intensities of pilot frequency are still similar after relayed by mini
repeater,and it causes mobile phone to frequently switch among many base stations in
the coverage areas,it named "Ping-Pong" phenomena. When the difference of signal
intensity of each pilot frequency is less than 3dB,mobile phone connects to two or more
base stations at the same time,which makes system control load to excess or causes
over loading. It will increase the possiblity of communication cutting and decrease the
capacity of base station system. This kind of situation usually presents in mountainous
areas,highlands and the city zone with buildings crowded. In order to avoid the "Ping-
Pong" phenomena mainly adopt the follwing measures in project:
a. Change the installation location of donor antenna and direct donor antennas at a
base station until get a stable pilot frequency with strong eld intensity.
b. Change the installation position of mini repeater; do not select the spot in coverage
boundary of a certain base station to avoid interference from the adjacent base
station.
c. Select strong directional donor antenna, such as high gain & big caliber paraboloid
antenna.
12
The serial number of this product can be found on its body.
You should note this serial number in the space provided below
and retain this book plus your purchase receipt as a permanent
record of your purchase to aid an identification in the event of
theft of lose,and for warranty service purposes.
MODEL NUMBER:
SERIAL NUMBER:
We sincerely hope that this manual can bring you convenience. With the
development of the technology and the lapse of time,we reserve the right
of revision in terms of the standard,technical requirement and all kinds of
product specification referred to in this manual. Please understand if not
keeping you informed of new information
MEMO:
/
