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Digital GPS Signal Repeater System

Cellular network timing solution

Microlab’s digital GPS repeater system can be used for cellular communications UTC synchronization for locations where the GPS signals are not readily available. The system is built with Microlab’s patent-pending Digital SkyTiming Technology™ offering industry-first GPS signal transmission via CPRI for highly accurate timing and location. The system offers several configurations for indoor and outdoor applications. Designed to be used in combination with Microlab’s Lossless GPS Signal Splitters


  • GPS timing system configured with indoor unit and outdoor unit
  • Patent-pending Digital SkyTiming Technology™
  • Improved fiber optic signal transport via industry-standard CPRI protocol
  • Provides GPS timing offset within 100ns accuracy
  • Supports single mode fiber with LC/UPC connectors (other connector and multi-mode fiber options available)
  • Network Monitoring System (NMS) reports broken antenna or degraded GPS and fiber optic link status
  • Secure SNMP v3 and HTTPS interface
  • Reporting and monitoring through web server using IPv4 and IPv6
  • 32-48 RF outputs supported with optional GPSS216/GPSS232 splitter trays (sold separately)


  • GPSR400/500 Outdoor remote units

    • 4 GPS antenna inputs
    • 2 GPS antenna inputs (models GPSR402/502)
    • High performance 4.3-10 antenna connections
    • Redundant fiber optic output links
    • 48/+24 VDC redundant power supply
    • Loss of signal alarms
    • LED system health indicators
    • RJ-45 Ethernet local port
    • Wall-mounted NEMA 4X enclosure
  • GPSR108/116 Indoor head-end units

    • 1 RU rack-mounted controller
    • 8 – 16 RF outputs, SMA connectors
    • Option to support additional RF outputs
Digital GPS Signal Repeater System
GPSR116 Indoor Head End, 16 port
GPSR400 4 Antenna Input, Outdoor Remote Unit, US Model
GPSA001 AC/DC power adapter
GPSA002 PoE power adapter
GPS-FS-KIT SC/APC Fiber adapter kit


User Documentation
GPSR116 GPSR400 - Quick Start Guide, Indoor Head End
GPSR400 GPSR400 - Quick Start Guide, Remote Unit