Skylight Indoor GPS Timing System

  • indoor gps timing system
  • Antenna panel

Open a New Window to Accurate Time for Your Network.

Even though synchronizing network master clocks and time servers to GPS is well-known as the standard for the most time-sensitive applications, some data centers and critical server locations are not conducive to traditional roof-top GPS antenna installation. Skylight™ provides a solution. Consisting of an indoor GPS antenna panel, a configuration of Spectracom’s SecureSync® modular GPS time server, and an interconnect cable, Skylight opens new possibilities for accurate GPS time.

  • An alternative to an outdoor antenna installation for GPS time synchronization
  • Works with other Global Navigation Satellite Systems (GNSS) for improved reliability
  • For leased facilities, urban canyons, buildings with prohibitively expensive cable runs
  • Includes the SecureSync enterprise-class time server (configuration 1200-023)
  • High stability internal oscillator maintains precise time even when the GPS signal is intermittent
  • Attractive antenna panel designed for office installations

Details

GPS signals are weak and often impractical in urban environments due to limited visibility of the sky, and constraints of roof-top access and long GPS antenna cable runs.

Skylight is a result of Spectracom’s expertise in GPS reception and applications for precision timing. Proprietary algorithms use a combination of high sensitivity receivers, the expanding constellation of various global navigation systems, accurate internal oscillators and assisted GPS to extract the GPS on-time point to sub-microsecond accuracy even in areas with somewhat limited GPS reception.

 

Related Solutions

Satellite Time and Location Signal Technology (STL) can be used as a secure signal of opportunity to complement GPS and other GNSS satellite signals, making the applications more accurate and secure and less prone to interference and attack.

Originating from the Iridium® constellation of 66 low-earth-orbiting satellites, STL is 1,000 times stronger than GPS/GNSS, reaching deep into buildings and penetrating GPS/GNSS jamming without the aid of local infrastructure. Cryptographic security features of STL also provide exceptional resilience to intentional spoofing.

Resources

White Papers

More Info
Typically, applications for timing use GPS as a precise, traceable, high availability, and free source of synchronization. But GPS is not the only satellite in the sky. More and more Global Navigation Satellite Systems (GNSS) are being developed and deployed. This white paper describes the trend to multi-GNSS using the example of the Russian GLONASS system as a complement to GPS.
pdf - 363 KB
Tuesday, November 19, 2013
By: Spectracom

Technical Notes and Briefs

More Info
This document is designed to help with the configuration Email Alerts to generate automatic emails when certain events occur on a SecureSync, NetClock, or VersaSync Time Server with 5.1.x software or higher.
pdf - 266 KB
Tuesday, November 15, 2016
By: Spectracom
More Info
NTP (Network Time Protocol) and SNTP (Simple Network Time Protocol) are very similar TCP/IP protocols in that they use the same time packet from a Time Server message to compute accurate time. The procedure used by the Time Server to assemble and send out a time stamp is exactly the same whether NTP (i.e. full implementation NTP) is being used, or if SNTP is being used.
pdf - 103 KB
Tuesday, November 1, 2011
By: Spectracom
More Info
Large-scale NTP deployments require consideration for the network’s time synchronization architecture. Network time deployments are usually driven by considerations for reliability, scalability, manageability and security. The capability of modern NTP servers, such as Spectracom SecureSync® and NetClock® time servers, is such that capacity does not impact the design of the synchronization architecture. 
pdf - 343 KB
Thursday, May 19, 2016
By: Spectracom
More Info
This technical note provides a general description of the software routing scheme of a single Spectracom unit with multiple network ports and offers alternative timing hardware deployments if software isolation is insufficient.
pdf - 319 KB
Monday, December 22, 2014
By: Spectracom

Compliance Documents, Technical Notes and Briefs

More Info
This technical note documents the compatibility of SecureSync with the North American Electric Reliability Corporation’s (NERC) Critical Infrastructure Protection (CIP) “CIP-007 Standard Cyber Security – Systems Security Management” and describes the SecureSync configuration settings required to meet the CIP-007 requirement.
pdf - 142 KB
Tuesday, November 15, 2011
By: Spectracom

Datasheets

More Info
Spectracom GPS timing accessories include GPS antennas, surge protectors, grounding kits, amplfiers, splitters, software, time displays, and support package options.
pdf - 140 KB
Saturday, November 16, 2013
By: Spectracom
More Info
Optional hardware modules for the SecureSync platform.
pdf - 165 KB
Thursday, February 12, 2015
By: Spectracom
More Info
A SecureSync configuration with a GPS antenna system suitable for some indoor locations.
pdf - 213 KB
Monday, March 24, 2014
By: Spectracom

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