Best viewed 1024x768
  Authorized
  Integrator  

Quality Warranty

Mobile Data Transmition

P-25 Digital Radio

Emergency Systems

Conventional Radio not amateur

DTMF Signaling

Digital Trunking

Analog Trunking Tait

Analog Trunking Simoco

Fixed Data Transmission

Radio Systems

Integrated Systems by SGM

Portuguese
English

Home  
     

Application:
Customer:
Analog Trunked Radio
VIAPAR - Rodovias Integradas do Paraná S.A.

Supply and Implantion of a Analog Trunked System to cover roads in the Paraná state.

Technical Features:

Multichannel Radio: MAS DRX-200, digital, operating at 1.5 GHz, QPSK modulation
Capacity of 2xE1or 60 channels, integrated multiplex
14 stations, 13 links. Reliability of 99,9%


Trunked System: Tait-Net
TM, analog, operating at 460 MHz, FM modulation
14 channels, 10 base stations (sites)
100 mobile, 10 fixed, 30 portable
2 dispatch consoles
Reliability of 95 %
Extension covered of 450 Km

The Integrated System own AVL - Automatic Vehicle Location System scanned by Satellite (GPS) and are monitored at CCO - Operational Control Center.

The vehicles are equiped with inform mobile data terminals, conected to the mobile T2040, receiving message of the dispatcher on display.

Get Acrobat Reader here. See the case study by TAIT.

Application: Customer:      
Radio Systems
ALSTOM / METRÔ - Companhia do Metropolitano de São Paulo
Supply and Implantation of 8 Radio Dispatch Consoles model 4016/4115B and 1 Controler Unit 4048, manufactured by ZETRON.

The consoles that control all the 34 RFchannels of the Metrô, including the communication TREM-CCO, was integrated on the operation consoles of the system (see photo bellow).

The SGM farther supply and implant the system, developed the interfaces of signaling each one of the controled lines: Blue (North/South), Green (Paulista Avenue) and Red (East/West).
It has been foreseen during the implantation of the system the paralell operation with the old equipment, pending the new was beeing accepted.

This operation show the capacity of the SGM to project and implant customized systems according to the needs of each customer.

Get Acrobat Reader here. See this article by ZETRON.

Dispatch Console installed by SGM
Application:
Customer:
Radio Systems
VARIG S.A.

Project, Supply and Implantation of a HF Radio System of 1kW output power to ground-air communication. The system consists of a control center and two RF stations. Each station is compound of nine receivers, a transmitter and a high performance antenna. The project and the equipment were supplied by Mackay Radio Systems, Inc. located in Raleigh, NC - USA. The control console uses digital signal processors to detect and filter the received signals. The operation software runs in Windows 95 environment.

The SGM supplied:

  • Project and building of two shelters to the radio stations;
  • Project and construction of the pipes to pass the connection cables between the control center and the radio stations;
  • Building of foundations and installation of two wide-band elliptic-conic HF antennas;
  • Installation of radio equipment and control console;
  • Installation of connection cables between the radio stations and the control center;
  • Test and activation of the system.
Application:
Customer:
Microwave Radio EMBRATEL - Empresa Brasileira de Telecomunicações S.A.
Development and Supplied of 145 Power Amplifiers to Microwave Radio in aluminum, operating at 5.925 to 6.425GHz range and +40dBm of output power, to replace the TWT valves by "MESFET" transistors, to the Cuiabá-Porto Velho route of Embratel.
Application:
Customer:      
Microwave Radio NEC do Brasil / EMBRATEL - Empresa Brasil. de Telecomunicações S.A.
Development and Supply of 100 microwave Power Amplifiers in flexible substrate, operating at 10.7 to 11.7GHz range and +40dBm of output power to replace the TWT valves by "MESFET" transistors, to the Lages(R)-Lages(T), Ribeirão Preto(R)-Ribeirão Preto(T), Belo Horizonte(MC)-Belo Horizonte(SC), Rio de Janeiro(LV)-Rio de Janeiro(SR), Rio de Janeiro(AM)-Rio de Janeiro(SR) and Salvador-Valéria routes.
Application:
Customer:
  EMBRATEL - Empresa Brasileira de Telecomunicações S.A.
Development, Production and Implantation of Optical Interface Supervision - IOS

The IOS provides the galvanic isolation between the alarms of the external items of supervision and the Digital Radio System NEC, 700 series. The capacity of each plate is of 14 independent interfaces to 14 external items.
Application:
Customer:
Microwave Radio EMBRATEL - Empresa Brasileira de Telecomunicações S.A.
Development, Production and Implantation of Telephone Adapter and Coupler to connect the Service Channel of the Digital Radios of Philips, Alcatel and NEC do Brasil, to the Telephony Internal Network (RIT) of Embratel.
Application:
Customer:
Conventional Radio CEMIG - Centrais Elétricas de Minas Gerais
Development, Production and Implantation of High Power VHF - UHF Repeaters with only Solar Panel supply.

Repeater Features:

The Parallel Repeater Station is compound of 2 (two) mobiles transceivers, connected to an Audio Repetition Interface.
The VHF/FM transceiver (148-174 MHz) has EEPROM programmable channels on microcomputer IBM/PC compatible, 45 Watts RF output power.
The UHF/FM transceiver (440-470 MHz) has EEPROM programmable channels on microcomputer IBM/PC compatible, 15 Watts RF output power.
The main energy system is supplied by 4 Siemens photovoltaics 75 Watts modules interconnected.
The DC supply has back-up system composed of 4 (four) 100 Ah batteries, parallel allied, supplying a total of 400 Ah.
This configuration assure an autonomy of 4 days without solar irradiation incidence.
Application:
Customer:
Radio Systems ESCELSA - Espírito Santo Centrais Elétricas S.A.
Project, Integration, Supply and Implantation of Consoles System of low e mean capacity, high performance modular VHF-UHF Repeaters, Mobile and Portable Radios.
Application:
Customer:
Radio Systems ESCELSA - Espírito Santo Centrais Elétricas S.A.
Supply and Implantation of high performance Repeaters model TAIT T-800II and continuous operation (100% duty cycle) in VHF/FM band, 50 Watts output power, with main/reserve auto/manual 1+1 switchover device developed by SGM.
Application:
Customer:
Radio Systems and Data Transmission CEEE - Companhia Estadual de Energia Elétrica
Integration and Supply of KENWOOD Repeaters, Mobile and Portable Radios, and Dataradio Radio-Modem for Data Transmission.
Application:
Customer:
Radio Systems Elektro Eletricidade e Serviços S.A.
Supply of a modern digital system from the well-known American company AVTEC Inc. (Gilbert/SC), composed by 19 radio dispatch consoles controlling 95 base stations covering the concession area for communications with fixed, mobile and portables units for maintenance and operational people.
It will be a total of 19 state-of-art LCD monitor dispatch consoles with touch-screen function selection feature, controlled by a digital central switch that will be installed in the new center of operations at Campinas/SP.
Application:
Customer:
TTRANS / METRÔ - Companhia do Metropolitano de São Paulo

Supply of a TEAM SIMOCO's MPT1327 Trunking System for Line 5 - Largo 13/Capão Redondo for CPTM - Companhia Paulista de Transportes Metropolitanos. The system includes 3 repeater sites with 4 trunking channels each, mobile transceivers to be installed at special vehicles and trains, and handheld transceivers.

<< Press Release>>

Integrated Systems | Products | Maintenance | Prizes
Home | Who we are? | Contact us

Produced by
Ricardo Itikawa

SGM Telecomunicações Ltda - Brazil - © 2000-2006 All rights reserved.