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Table of Contents
Summary of Contents for Signal GSM-305
- Page 1 Repeater GSM-305, GSM-505, GSM-1205...
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Page 2: Table Of Contents
User’s Manual SAFETY WARNINGS ....................................... 3 WHY REPEATER S ....................................4 1 .........................................4 EASON 2 .........................................4 EASON INTRODUCTION ....................................5 SYSTEM CHARACTERISTICS ................................6 ........................................... 6 EATURES GSM-505, GSM-1205 ............................7 PPEARANCE OF REPEATERS THE REPEATER SYSTEM ...................................7 GSM-505, GSM-1205 MAIN TECHNICAL SPECIFICATION ..........................8 ..................................8 ECHANICAL SPECIFICATION ..................................8... -
Page 3: Safety Warnings
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. -
Page 4: Why Repeaters
Why repeaters Reason 1 1) Blind or weak signal areas are formed if the buildings are too far away from BTS, or the buildings themselves shield or absorb the signals. 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 during phone calls and there are dropped phone calls accordingly. -
Page 5: Introduction
(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. -
Page 6: System Characteristics
GSM-1205 effectively 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, repeater to be amplified significantly,... -
Page 7: Gsm-505, Gsm-1205 Repeaters
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 - 7 -... -
Page 8: Gsm-505, Gsm-1205 Main Technical Specification
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... -
Page 9: Rf Technical Specification
Electrical specification Uplink Downlink Frequency Range 880 ~ 915 MHz 925 ~ 960 MHz ≧60dB ≧60dB GSM-305 Max. Gain ≧65dB ≧65dB GSM-505 ≧70dB ≧ 70dB GSM-1205 ≧10dBm ≧10dBm GSM-305 Max. Output power ≧15dBm ≧15dBm GSM-505 ≧20dBm ≧20dBm GSM-1205 ±6dB... -
Page 10: Power Adaptor Specification
Maximum Input Voltage Range Output Voltage Range Total Power Consumption Installation GSM-305, GSM-505, GSM-1205 micro repeater should be used to cover the area the humidity indoor and and temperature of working can affect the reliability of repeater. So, temperature, humidity,... -
Page 11: Installation Of Donor Antenna
The repeater’s main function is to improve weak RF signals to an area. A simple formula: Input power+ Gain= Output power. The signal strength from the outdoor antenna directly affects the efficiency of the indoor coverage. It is very important to choose the location of the outdoor antenna carefully. With this in mind, it is not recommended the donor antenna to be installed in an attic. - Page 12 As shown in the below illustration, the booster amplifies the signal R and signal T from the tower at the same time. If the distance between donor antenna and server antenna is less than the required distance, then the amplified signal R (T) will back to server antenna (donor antenna).
- Page 13 If isolation can’t be achieved by the limited distance, the roof of the building or other barriers can be used to increase isolation. Installation of panel antenna as donor antenna Installation of wide directional antenna as donor antenna ...
- Page 14 Fix the donor antenna after selecting the best position, and adjust slightly its height or angles in order to get the signals with suitable input power level and calling Quality System Requirement of GSM or DCS The total input power level shall be around -50dBm, lowest shall be more than –80dBm. Test by mobile phone or data card by 3~5 times to make sure the calling quality is good in 95% of the time, and no handovers.
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Page 15: Indoor Antenna Installation
8) Keep exposed indoor cables in good order. Install PVC troughs or tubes if the exposed cables are more than 1 meter long. Place small passive RF parts such as power splitter in cable troughs. 9) Process both ends of RF coaxial cables as follows: Keep the same redundant cable length and keep the length of stripped cables to agree with the corresponding connectors. -
Page 16: Repeater Installation
Repeater Installation Installation Steps GSM-505, GSM-1205 shall be installed in indoor areas only Drill four holes as per the bracket size on the location where the repeater shall be installed and input expanding plastic. Fasten the bracket vertically onto the wall by the screws Hang the repeater onto the bracket. -
Page 17: Repeater's Ports Description
Repeater’s ports description Outdoor port: connected with the donor antenna by cable Indoor port: connected with server antenna directly or by cable DC IN: connected with power supply. Accessories selection Please pay attention to the two points of “frequency” and “impedance” during the selection of the accessories. All accessories shall support the repeater’s frequencies from feeder line, antenna and splitter to combiners etc. -
Page 18: Manual Gain Control (Mgc)
Status Definition Green Normal DC power problem Status and Definition of ALARM indicators, Status ALARM It is working in linearity Green attention: Input signals may not be enough There are overloading or self oscillation, strong input signals, measures must be taken immediately. -
Page 19: Repeater Commissioning
DIP switch uplink attenuation setting: Att. Att. 0 dB off 11dB off 22dB off 1 dB off 12dB off off 23dB 2 dB off 13dB off 24dB off 3 dB ON ON off 14dB off off 25dB 4 dB off 15dB off 26dB off 5 dB... - Page 20 Green LED linear Red LED Equipment Orange LED amplification area overload zone Stable work area Output power, input signal and their attenuation curve Output Power Output Power: Input Power input Power: Attenuation value of attenuator ATT: Input Power－Attenuation value of attenuator...
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Page 21: System Test
The weak input signal leads to the low output power. Change the direction of donor antenna or Its installation position or replace donor antenna with higher gain to increase input signal power level. - Page 22 Reduce the attenuation values*---at the same time must ensure the isolation Increase the output power* ---recommended ways: adjust the donor antenna to increase input signal strength, or replace with a repeater with stronger output power. - 22 -...
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Page 23: Repeater Can Not Communicate In Power-On Status
Repeater can not communicate in Power-ON status 1) The power is on but it has a signal fluctuation or a flash signal. The phone call can not achieved. It shall be caused by the insufficient isolation between donor antenna and serve antenna, Please take below measures: ➢... -
Page 24: Importer
Producent DIPOL 31-587 Kraków, ul. Ciepłownicza 40 POLAND NIP: PL 678-01-01-04...