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2G / 3G / 4G Repeater

GSM Repeater, UMTS Repeater, LTE Repeater, LTE MIMO Repeater, DCS Repeater, 2G Repeater, 3G Repeater, 4G Repeater, 4G MIMO Repeater.

GSM Micro-Repeater, UMTS Micro-Repeater, LTE Micro-Repeater, LTE MIMO Micro-Repeater, DCS Micro-Repeater, 2G Micro-Repeater, 3G Micro-Repeater, 4G Micro-Repeater, 4G MIMO Micro-Repeater.

GSM Pico-Repeater, UMTS Pico-Repeater, LTE Micro-Repeater, LTE MIMO Micro-Repeater, DCS Pico-Repeater, 2G Pico-Repeater, 3G Pico-Repeater, 4G Pico-Repeater, 4G MIMO Pico-Repeater.

800 MHz Repeater, 800 MHz MIMO Repeater, 900 MHz Repeater, 1800 MHz Repeater, 1800 MHz MIMO Repeater, 2100 MHz Repeater, 2600 MHz Repeater, 2600 MHz MIMO Repeater.

800 MHz Micro-Repeater, 800 MHz MIMO Micro-Repeater, 900 MHz Micro-Repeater, 1800 MHz Micro-Repeater, 1800 MHz MIMO Micro-Repeater, 2100 MHz Micro-Repeater, 2600 MHz Micro-Repeater, 2600 MHz MIMO Micro-Repeater.

800 MHz Pico-Repeater, 800 MHz MIMO Pico-Repeater, 900 MHz Pico-Repeater, 1800 MHz Pico-Repeater, 1800 MHz MIMO Pico-Repeater, 2100 MHz Pico-Repeater, 2600 MHz Pico-Repeater, 2600 MHz MIMO Pico-Repeater.

GSM BDA, UMTS BDA, LTE BDA, LTE MIMO BDA, DCS BDA, 2G BDA, 3G BDA, 4G BDA, 4G MIMO BDA.

GSM Bi-Directional Amplifier, UMTS Bi-Directional Amplifier, LTE Bi-Directional Amplifier, LTE MIMO Bi-Directional Amplifier, DCS Bi-Directional Amplifier, 2G Bi-Directional Amplifier, 3G Bi-Directional Amplifier, 4G Bi-Directional Amplifier, 4G MIMO Bi-Directional Amplifier.

GSM 2G Repeater, UMTS 3G Repeater, LTE 4G Repeater

Since the advent of mobile phone networks in the 1990's, SELECOM assists operators in their deployment

SELECOM offers a complete range of repeaters (bi-directional amplifiers or BDA) able to cover all needs :

  • GSM 2G Repeater
  • UMTS 3G Repeater
  • LTE 4G Repeater
  • DAS (Distribution Antenna System) 2G, 3G, 4G
  • 800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz Repeater
  • Power : Micro, Medium and High Power
  • Technology : Repeaters RF/RF, repeaters RF/FO
  • Monitoring : via serial link, SMS, IP, OMC, cloud-monitoring

The SELECOM Repeater solution also allows :

  • to extend the network coverage of a BTS in urban and rural
  • to fill the white areas in rural and mountainous areas
  • to insure coverage of infrastructure such as tunnels, shopping malls, parking garages, office buildings, hangars companies, factories, etc ...

The advantages of the repeater are :

  • Low cost compared to a BTS
  • Easy installation and use
  • High reliability

Multi-Band and Multi-standard Repeater

 

The range of digital repeater DIGIREP® is compatible both for all 2G GSM, UMTS 3G, LTE 4G standards, and the frequency ranges:

 

  Band Uplink Frequency Downlink Frequency
ETSI Sandard 800 832-862 MHz 791-821 MHz
900 880-915 MHz 925-960 MHz
1800 1710-1785 MHz 1805-1880 MHz
2100 1920-1980 MHz 2110-2170 MHz
2600 2500-2570 MHz 2620-2690 MHz
  SELECOM 2G GSM 3G UMTS 4G LTE Repeater

SELECOM 2G GSM 3G UMTS 4G LTE Repeater Channel Selective  

GSM / UMTS / LTE Repeater with selective channels

The range of repeaters DIGIREP® 2G GSM / UMTS 3G / 4G LTE of SELECOM boards a Filtering Multi-Sub-band function which also allows you to:
  • Select up to 12 sub-bands to be repeated (thus eliminating the others)
  • Program each of these sub-bands independently:
    • Center frequency
    • Bandwidth
    • Gain
With this feature, the repeater can then remove unwanted carriers and repeat only the desired operators.

"Uplink Squelch" function

To allow maximum deploy repeaters RF / RF in a given area, connected to the same base station, it is necessary to have a function that cuts off transmission of the uplink channel when the repeater is not applied a communication.
Indeed, a RF / RF repeater, even if it does not retransmit carrier, returns a background thermal noise, very low. But the sum of all those little noises generates power noise which can desensitize the base station, which would limit the use of RF / RF repeaters.

The principle is extremely simple:

  • No communication is requested by a mobile in the area covered by the repeater ⇒ The UL channel is paused ⇒ No noise is emitted by the repeater
    A communication is requested by a mobile in the area covered by the repeater ⇒ The UL channel is operated within milliseconds ⇒ The communication is provided
  • After a certain time, the repeater is no longer sought ⇒ UL channel is re-paused ⇒ No noise is emitted by the repeater
  SELECOM 2G GSM 3G UMTS 4G LTE Repeater MUTE UL

SELECOM 2G GSM 3G UMTS 4G LTE In-Train Repeater  

Dynamic Automatic Gain Control

In the context of use in mobility to cover train or subway for example, DIGIREP® repeater has a Dynamic Automatic Gain Control function.
This digital, ultra-fast function allows to dynamically control each sub-band operator in real time, to make consistent service repeater output.
Performant, the Dynamic Automatic Gain Control is capable of processing until 12 heterogeneous sub-bands, that is to say different standards in the same frequency band, or even the same frequency sub-band.

Echo Cancellation 3G/4G

Repeaters SELECOM DIGIREP® are equipped with the latest digital technologies, including Echo Canceller.
The repeater must transmit on the transmit antenna the same signal at the same frequency as the signal received on the receiving antenna. From a physical point of view, the Larsen effect (the microphone close to a speaker) is inevitable, provided you have excellent isolation between antennas.
In order not to blow the installation costs and to have a good insulation between the transmit and receive antennas, the solution is a Digital Echo Cancellation based on a software solution.
 
The echo canceller of SELECOM allows for such an installation that the insulation is less than 15 dB gain of the repeater.

 

  SELECOM Repeater 2G 3G 4G GSM UMTS LTE Echo Canceller

DIGIREP Spectrum feature  

Spectrum Analyzer and Statistics

Through its digital functions, the DIGIREP® allows to know remotely output spectral performance equipment :
  • On the web interface, the output spectrum is available in real time
  • Parameters are available such as: traffic, BTS ID, etc ...

 


Indoor / Outdoor Application

The repeater 2G / 3G / 4G DIGIREP® of SELECOM was designed for indoor and outdoor use.
With its 19-inch rack design shallow, it can be installed in a telecom cabinet, or wall position thanks to its mounting bracket.
The same mounting kit is also available with a protective ABS cover, lockable for outdoor use.
Note for users SELECOM legacy transponders, the screw fasteners is compatible and does not require new drilling.
  SELECOM Repeater 2G 3G 4G GSM UMTS LTE DIGIREP

DIGIREP Monitoring  

Local and remote monitoring HTTP, SNMP, WiFi

Resolutely modern, 2G / 3G / 4G DIGIREP® SELECOM repeater has the latest technologies of moitoring :
  • locally, the embedded web server is available in wired Ethernet RJ45 connection, but also WiFi, in order to connect as well with a laptop or a tablet
  • remote web server and embedded SNMP server can control and know the state of the equipment in real time

 

DIGIREP®DIGIREP®
Multi-Band Multi-Standard 2G/3G/4G Repeater
- Up to 12 sub-bands per frequency
- Dynamic Automatic Gain Control
- Echo-Canceller (3G/4G)
- Multi-Operator
 DataSheet PDF (424 Kb)

MICRO REPEATER LTE_2600 MhzMICRO REPEATER LTE_2600 Mhz
- Indoor coverage enhancement
- Buildings, Shopping malls
- Very Compact design
- +15 dBm output power
- Selective Band
- Multi-band configuration
- Built-in coverage antenna
- Remote by SMS
 DataSheet PDF (472 Kb)

MICRO REPEATER GSM900/GSM1800/UMTS2100MICRO REPEATER GSM900/GSM1800/UMTS2100
- EGSM / GSM / EDGE / GPRS / UMTS
- Indoor coverage enhancement
- Buildings, Shopping malls
- Very Compact design
- +15 dBm output power
- Selective Band
- Multi-band configuration
- Built-in coverage antenna
- Remote by SMS
 DataSheet PDF (852 Kb)

 
SINGLE BAND DIGIREP® 2G / 3G / 4G / GSM / UMTS / LTESINGLE BAND DIGIREP® 2G / 3G / 4G / GSM / UMTS / LTE
RF-RF Repeater 800/900/1800/2100/2600 GSM/UMTS/LTE
- High Power
- Single Band
- Band Selective
- Digital Smart Filter & Advanced Insulation
- Outdoor IP65 cabinet
- HTTP, SNMP Monitoring
 DataSheet PDF (454 Kb)

DIGIDAS™ 2G / 3G / 4G / GSM / UMTS / LTEDIGIDAS™ 2G / 3G / 4G / GSM / UMTS / LTE
DIGital Distribution Antenna System 2G/3G/4G/GSM/UMTS/LTE
- GSM/UMTS/LTE 800/900/1800/2100/2600 coverage enhancement
- HQE Buildings & Shopping malls
- Full Digital Technology
- Optical CPRI* interface
- Bandwidth 120MHz
- +25 dBm per standard
- Multi-operators & Multi-standards
 DataSheet PDF (717 Kb)

LONG CELL™ 2G/3G/4G GSM/UMTS/LTE/GSM-R/LTE-R 800/900MHzLONG CELL™ 2G/3G/4G GSM/UMTS/LTE/GSM-R/LTE-R 800/900MHz
Solution for High-speed train lines coverage
- Exclusive Patent
- Single cell of up to 40 km
- GSM900/UMTS900/LTE800/GSM-R/LTE-R at the same time
- Only one optical fiber
- Nearly villages coverage with a 2nd long cell
 DataSheet PDF (611 Kb)