GL Communications Inc.
 
 
 
Consulting Services > Expertise
 
Engineering Services
 
     
     
 

Network Engineering

  • Local area networks
  • Wide area networks
    • Open transport Network (OTN)
    • SONET
    • Frame Relay
    • Gigabit Ethernet
  • Metropolitan area networks
    • Optical fiber infrastructure for system-wide connectivity throughout the metropolitan area
    • Combination of fixed wireless and dedicated wire-line networks
 

Site Surveys

  • Site survey of segments of an underground antenna system in tunnels and stations
 

Radio Site Location Design

  • Radio site surveys of
    • Microwave dish placement
    • Antenna location
    • Site location survey
    • Environmental assessment
    • FAA/Aeronautical studies
    • FCC tower registrations
    • Equipment shelter
    • Generators
    • Electrical service
    • HVAC and Fire suppression (FM 200) systems
 

Site Acquisition Support

  • Site-lease procurement assistance to customers
  • Coordination with site owners
  • Tower and FCC database research
  • Plot radio sites for customer review to narrow-down search
  • Overlay of 2D and 3D terrain maps to select the best site
 

Frequency Planning

  • Spectrum planning for UHF TV band, 800 MHz, 700 MHz, cellular and PCS customers
  • APCO and FCC database research
  • Inter-system coordination for adjacent and co-channel protection to mitigate potential interferences
 

Interference Studies

 

Field Testing and Trouble-shooting

  • Extensive propagation prediction studies and field measurements to compare 490 MHz and 800 MHz simulcast trunked UHF land/mobile radio systems for a metro transit authority.
  • Cellular/PCS systems propagation model tuning with received signal field strength data obtained from field measurements
  • Microwave relocation interference analysis using field analyzer during a PCS service provider initial startup in 2GHz band
  • OTDR and precision power meter testing to troubleshoot splicing flaws and recommendation for fiber repair
 

Traffic Monitoring

  • Cellular/PCS
  • UHF/VHF/800 MHz Land Mobile Radio systems
  • Erlang B and Erlang C calculations
  • Recommendations for required number of trunked channels
  • Measurement of propagation delay, busy time and call duration statistics
 

Hardware Installation

  • Cisco 3750 Gig.bit Layer 3 Ethernet switches
  • Layer 2 switches (3Com and others)
  • Arial and underground fiber cable
  • SONET nodes
  • Open Transport Network: Siemens wide area network system
  • Test equipment for BER measurements for microwave links
 

FAA/FCC Licensing

  • FAA determination for observation marking and lighting
  • Aeronautical studies
  • FCC tower registration
  • FCC licensing and renewal
  • System area boundary contours and cellular geographic service area maps
  • FCC expert witness for mediation to resolve dispute among neighboring cellular carriers
 
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