EC20S Epsilon GPS Clock

EC20S Epsilon GPS Clock

  • GPS clock for digital broadcast
  • GPS clock back panel connections

GPS Clock Overview

High-performance GPS Clocks are designed to exceed digital TV, digital Radio, 4G base stations, satcom time and frequency synchronization requirements

Epsilon Clocks provide accurate and stable time and frequency signals for your high-performance synchronization application. The unit’s optimized architecture is well-suited to transmitter synchronization of digital broadcast signals (DVB-T/T2, T-DMB, DAB or DRM) in Single Frequency Networks (SFN) modes: the high port density allows to synchronize many emitters simultaneously on the same site.

  • High-performance GPS clock
  • EpsilTime™ smart predictive slaving algorithm
  • High time & frequency accuracy, even if GNSS is lost
  • Network management based on Web User Interface and SNMP
  • NTP stratum 1 support
  • RoHS Compliant
  • GNSS-disciplined OCXO internal timebase
  • GNSS Constellations:
    • GPS
  • Optional Rubidium clock for extended holdover performance
  • up to 10 x 1PPS TTL outputs
  • up to 10 x 10 MHz sine wave

Epsilon Clock Details

Epsilon Clocks provide high reliability synchronization with very accurate and stable time and frequency signals. The high performance suits a comprehensive range of applications where excellent accuracy is required, especially synchronization of mobile wireless base stations, emitters for digital audio or video broadcast.

A high performance ovenized oscillator (OCXO) slaved to the GPS/GNSS input source offers outstanding accuracy and phase noise. The oscillator in conjunction with the EpsilTime™ smart predictive slaving algorithm mitigates the effects of inherent GPS noise and complies to the most stringent holdover mode requirements if GPS is lost. Furthermore, the 10 MHz frequency reference is cycle-locked to the 1 PPS, meaning that there are always exactly ten million cycles between 1 PPS occurrences. This unique feature is essential to avoid phase jumps and wander between time and frequency references. The EC20S is available with an optional Rubidium atomic clock reference for extended holder performance in the case of loss of satellite signals and when there is no redundancy.


Designed for any applications that demand quality, reliability, and availability

  • Digital Video and Audio Broadcast:
    • DVB-T/H/SH
    • FLO
    • T-DMB
    • ISDB-T
    • DAB
    • DRM
  • Wireless Telecom:
    • CDMA
    • WiMAX
    • TDOA caller locations



More Info
A GPS master clock for digital broadcast synchronization applications.
pdf - 208 KB
Friday, November 6, 2020
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Technical Notes and Briefs

More Info
In the process of testing the 2019 rollover event, the Orolia Engineering department has determined that this year’s event will potentially affect a limited volume of equipments embedding a Trimble Lassen IQ receiver, despite a Rollover week event compliant notice from the vendor. As a result, the time code may be affected but the GPS will remain locked. The following products have been identified: EC20S, EC22S.
Offsite File
Wednesday, March 13, 2019
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White Papers

More Info
In Europe, Middle East, Africa and Southeast Asia, broadcasters are looking to the DVB-T2 standard to upgrade from analog transmission, their current DVB-T implementation, or as a supplemental network. Similarly, in South America, ISDB-T is being implemented. These and other standards rely more and more on single frequency networks (SFN) to efficiently utilize wireless frequency spectrum. SFNs require synchronization so for each instant of time, every transmission station is broadcasting the same digital data at the same exact frequency.
pdf - 739 KB
Thursday, July 26, 2012
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All EC20S Documents & Files

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