Signal GSM-305 Manual de usuario

Repeater GSM-305, GSM-505,GSM-1205

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User’s Manual 
 
 
 SAFETY WARNINGS...............................................................................................................................................................................................3
WHY REPEATERS.................................................................................................................................................................................4
REASON 1.................................................................................................................................................................................................4 
REASON 2.................................................................................................................................................................................................4 
INTRODUCTION ...................................................................................................................................................................................5
SYSTEM CHARACTERISTICS ...........................................................................................................................................................6
FEATURES ...........................................................................................................................................................................................................6 
APPEARANCE OF GSM-505,GSM-1205 REPEATERS............................................................................................................................................7 
THE REPEATER SYSTEM ...................................................................................................................................................................7
GSM-505, GSM-1205 MAIN TECHNICAL SPECIFICATION.............................................................................................................................8
MECHANICAL SPECIFICATION.........................................................................................................................................................................8
ENVIRONMENT CONDITIONS..........................................................................................................................................................................8
RF TECHNICAL SPECIFICATION.......................................................................................................................................................................9
POWER ADAPTOR SPECIFICATION ..................................................................................................................................................................10 
INSTALLATION ......................................................................................................................................................................................................10 
INSTALLATION LOCATION REQUIREMENT .......................................................................................................................................................10 
POWER REQUIREMENT................................................................................................................................................................................10 
INSTALLATION TOOLS AND ACCESSORY ...........................................................................................................................................................10 
INSTALLATION OF DONOR ANTENNA...............................................................................................................................................................11 
INDOOR ANTENNA INSTALLATION ..........................................................................................................................................................................15 
REPEATER INSTALLATION.....................................................................................................................................................................................16 
Installation Steps.............................................................................................................................................................................16 
Repeater’s ports description............................................................................................................................................................17 
Accessories selection.......................................................................................................................................................................17 
REPEATER SETTINGS.................................................................................................................................................................................17 
Switch on power ..............................................................................................................................................................................17 
Manual Gain Control (MGC)..........................................................................................................................................................18 
Repeater Commissioning .................................................................................................................................................................19 
SYSTEM TEST ..........................................................................................................................................................................................21 
Check whether the coverage is good................................................................................................................................................21 
Repeater can not communicate in power-on status........................................................................................................................23 
IMPORTER ...........................................................................................................................................................................................24 

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Preface

This user’s manual describes the installation, commissioning and maintainance of GSM-

305, GSM- 505, GSM-1205 repeaters.

Please do read the user manual carefully before installing and maintaining repeaters.

The information in this manual is subject to change without prior notice

Opinions are welcomed about the manual improvement.

Safety Warnings

Users must follow the below principles：

Repeater should follow system requirement of communication equipment,

assure good groundings and lightning protection.

The power supply voltage of repeater should meet the standards of security

requirement; any operation shall be carried out only after cutting off power in advance.

Only the professional is authorized for theoperation.

Do not dismantle machine, maintain or displace accessories by yourself,

because in this way, the equipment may be damaged or even get an electric shock.

Do not open the repeater, touch the module of repeater, or to open the cover

of module to touch the electronic component, the components will be damaged due to

electrostatic.

Please keep away from heating-equipment, because the repeater will

dissipate heat during operation. And do not cover booster with anything that influences

heat-dissipation.

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Why repeaters

Reason 1

1) Blind or weak signal areas are formed if the buildings are too far away from BTS, or thebuildings

themselves shield or absorb thesignals.

2) There are too many complicated signals in the higher part of the buildings, therefore ping-pong

switching effect has been formed and the signals fluctuate a lot, there are annoying noises duringphone

calls and there are dropped phone callsaccordingly.

3) Elevators and basements are well-known blindareas.

4) Downtown areas of the cities, congested with many high-rise buildings are usually the weak orblind

areas.

The remote villages, mountains, hills, valleys, etc. are mostly scarcely populated areas with quite few mobile

users, so the main target is to send coverage to these areas, and it will not be cost effective to install a BTS

tower, therefore a booster is a quite good option.

Can we not use mobile phones? The answer is definitely NO. But it might be much more miserable that the

communication can’t be achieved due to no or weak signals though there is a mobile phone.

Will your customers stay comfortable when there is no smooth communication in your shops or restaurants?

Will your business be influenced if your clients couldn’t call you through due to weak signals in offices?

Will your life be influenced if your mobile is always “out of service” at home when your friends call you?

How to solve the problems?

Best Solution:

Plug & play: Purchase a set of DIPOL booster solution and install it at your home, offices, and plug

on the power and immediately you would be able to enjoy the full bar and high qualitysignals!

- 5 -

Question: Will booster increase the RF radiation?

A: No, it will decrease instead.

As it can be searched easily through internet, the tower would “order” the mobile phone to increase its output

power, in order to ensure successful connection when the mobile signal bar is few, there will be stronger

mobile output power level when the mobile signal bar is less and the strongest one can reach 2W (GSM);

moreover, the mobile phone is usually as near as less than 5cm to human body when people are in phone

calls. Not only it influences badly the human bodies, but also runs out of the battery power much more quickly;

usually the mobile phone gets hot in suchstatus.

The maximum power level of GSM-505, GSM-1205 is 0.01W, and it decreases to be maximum 0.3 W

when reaching server antenna. And since the server antenna is installed over the ceiling or onto the wall,

there are usually more than 3 meter away from the human body, 3 meter away means at least 40dB

propagation loss, or 10000 times less, 0.0000003W, therefore it is too weak to influence human bodiesthough

it is still a very good signal for mobilephones.

And when a booster is installed, it improves the mobile signals in the coverage, and the successful phone call

can be connected easily with a much less power level of the mobile phone, thus it will reduce tremendously

the RF radiation.

Introduction

This GSM-505, GSM-1205 full duplex mobile communications repeater is the perfect solution for providing

a wireless improvement in the cellular reception of a home, office, restaurant, VIP Room, apartment, building

or shopping mall, in the quickest time possible. One repeater covers 300 to 1800 square meters.

It is designed to improve the call quality of an area by receiving, amplifying and re-transmitting signals of the

base station into a specified area via the server antenna of the repeater.

This repeater has Manual Gain Control (MGC) feature that enables engineers to reduce the gain of the

repeater manually if oscillation is detected or too strong input power level during installation, this will help to get

the best coverage effect without any interference back to mobilenetwork.

And to maintain safe and specific output signal levels during the repeater’s operation, this repeater has a built-

in signal oscillation detection circuit to adjust the gain automatically so as to avoid interference to the cellular

network, also it gets color changing LED’s indicate its environmental status: the Alarm LED’s located on the

front of the unit (Alarm Low & Alarm High) will change color from green to orange or red, (depending on the

input power level) if the system detects signal oscillation in either band or, if the input signal is beyond a safe

limit.

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Below diagram shows how simple and fast GSM-305 GSM-505,

GSM-1205 effectively

repeater system is installed and works

One Yagi antenna, as a donor antenna, has been installed at the top of the roof to pick up good mobile signals

from outside, and send through a cable to a (GSM-305, GSM-505,

GSM-1205) repeater to be amplified significantly,

then the output signals are divided into two signals by a 2way splitter, sent to two indoor omni antennas

and finally transmitted into the coverage area. Very clear phone call or high speed mobile data

are immediately effected within the area.

services

System Characteristics

Features：

CE Certified

Streamline shape

Excellent out of bandrejection

Wide power supply range and low power consumption

High-integration (One board to contain low-noise amplifier, frequency selection module, power

amplifier module, both uplink and downlink one forall)

Manual gain control provides a variety ofapplications

MTBF>50000h, low failure rate

- 7 -

Appearance of GSM-305, GSM-505, GSM-1205 repeaters

Figure 1 the front view (colors may differ from real products).

Figure 2 Side View

The repeater system

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Donor Antenna：

➢8~10dbi outdoor panel (A741020) or 7~13dBi wide band Yagi (A741030) are recommended as

donor antenna.

➢Function: Pick up donor signals from the BTS and send to the repeater by cable; the received

signals’ power level and quality influence a lot on the coverage effect. Donor antenna also

transmits the uplink signals from the repeater toBTS.

Server Antenna:

➢2~3dBi indoor omni ceiling (A741001) or 5~10dBi indoor panel (A741020) arerecommended.

➢Omni antenna (Indoor ceiling omni antenna or whip antenna), suitable to install in the center

and radiate all directions; It is better to use a directional panel antenna or Yagi when thecoverage

shape is long and narrow (corridors, long row of houses in two sides, tunnels or elevators or

rural open space)

Cables: Tri-Lan 240 (E1171) coax cables arerecommended.

Splitters or couplers: when the building structure is too complicated or there is big loss due to

thick walls, etc., splitters or couplers shall be used so that more antennas can be installed in more

areas to distribute the signals to each corner of the coveragearea.

Power Box including electricity meter, air switch and groundings, some sites might need surge

arrestors.

GSM-305 GSM-505, GSM-1205 Main technical specification

Mechanical specification

Item

specification

Dimensions

218x 155 x 65 mm

Weight

1.2 kg

Environment Conditions

IP40

Cooling mode

Nature cooling

Environment conditions

Item

specification

Operating Temperature

-25°C to +55°C

Storage Temperature

-40°C to +80°C

Humidity

5% to 85%

Air Pressure

86 kPa to 106 kPa

- 9 -

RF technical specification

Electrical specification

Uplink

Downlink

Frequency Range

880 ~ 915 MHz

925 ~ 960 MHz

Max. Gain

GSM-305

≧60dB

GSM-505

≧65dB

GSM-1205

≧70dB

Max. Output power

GSM-305

≧10dBm

GSM-505

≧15dBm

GSM-1205

≧20dBm

Gain Tolerance

±6dB

Band width（-3dB）

35MHz

MGC (Step Attenuation)

≧31dB / 1dB step

Automatic Level Control

≧20dB

Out of Band Gain

±400KHz

＜50dB

±600KHz

＜40dB

±1MHz

＜35dB

±5MHz

＜25dB

Spurious Emission

9KHz~1GHz

≦-36dBm @ 3KHz

1GHz~12.75GHz

≦-30dBm @ 3KHz

Output inter-

modulation

9KHz~1GHz

≦-36dBm @ 3KHz

1GHz~12.75GHz

≦-30dBm @ 3KHz

Noise Figure

≦5dB

VSWR

≦2.0

Group Delay

≦4.5μs

Frequency stability

≦0.01ppm

LED Alarm

Standard

LED Alarm

LED 1

Power Indicator

LED 2

(ALC 1~5dB,Grange;ALC 20~25dB,Red)

- 10 -

Power Adaptor Specification

Item

Minimum

Typical value

Maximum

Input Voltage Range

9 V

Output Voltage Range

Total Power Consumption

27W

Installation

GSM-305, GSM-505, GSM-1205 micro repeater should be used to cover the area

indoor and

the

humidity

and temperature of working can affect the reliability of repeater. So, temperature, humidity,

dust, interference, power,

installation of repeater. space requirements and other factors should be considered during

Installation Location Requirement

1) It is appreciated that the repeater is installed in a cool, dry and ventilated room without erosive gas and

smoke and without leakage on itsproof.

2) Besides above, a cool and ventilated wall of which sun-proof and waterproof isexpected.

3) Besides above, common wall, tower or high pole isok.

4) Installation height should be easy for RF cable wiring, heat dissipation, security andmaintenance.

5) Have a set of independent and stable powersupply.

6) Have lightning conducer in the building, tower or high pole with enough strength or stability.

Power requirement

Generally it is AC power supply，and the requirement of AC is 100~264VAC/50±5Hz

Installation tools and accessory

No.

Name

Specification

Quantity

Remark

Plastic Expansion Bolt

M5*24

Standard accessories

Tapping screw

M3*27

Standard accessories

Hanging folder

Standard accessories

reciprocating drill

Engineering-owned, punch the

wall

Shot bit

Engineering-owned, punch the

wall

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