Epsilon Clock™ Model EC1S

Compact GPS clock module
12 channel reception on L1 (1575 MHz) C/A code
Continuous Time Integrity Monitoring (T-RAIM)
Automatic self survey with robust 0D fixed mode
Antenna propagation delay compensation
1 PPS TTL output
10 MHz sine wave output
Time of Day output
Two auxiliary input/output for a full range of applicability
RoHS Compliant

Product Overview

The Epsilon Clock™ 1S provides a compact synchronization solution with very accurate and stable time and frequency signals. The high performance suits a comprehensive range of applications where excellent accuracy is required especially for synchronization of telecom wireline infrastructure, mobile wireless base stations, emitters of digital audio or video broadcast.

An ovenized oscillator (OCXO) slaved to the GPS input source offers outstanding accuracy and phase noise. An optional Double Oven OCXO is available for a very low aging. 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, such as CDMA-3G, 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.

Two optional SMA connectors along with a customizable internal module allow a range of dedicated versions in terms of performance and functionality such as software adjustable frequencies for TV broadcast, SDH/E1 synchronization for SSU functionality.

Set-up and control of the EC1S is via a serial interface. Status is displayed by 2 LEDs. Alarms are via relay contacts. The antenna cable delay and the choice of time scale (UTC or GPS) are programmable.

Download datasheet