Spectratime SRO-100 Rubidium Oscillator

Spectratime SRO-100 Rubidium Oscillator

The slim SRO-100 is a smart, low cost GPS/GNSS-disciplined rubidium oscillator (GPSDO), integrating complex synchronization functionality all in one low-cost, super-small package. Get a Quote

SRO-100 Oscillator Overview

It utilizes the patented SmarTiming+® technology to provide a host of timing features, which were previously implemented externally on a separate circuit board. The SRO intelligently synchronizes, disciplines, and controls any primary reference source, such as GPS/GNSS, Cesium, Hydrogen Maser, and T1/E1, at cutting-edge 1ns resolution.


  • Mobile & wired telecom/datacom infrastructures
  • Military communications & surveillance systems
  • High precision instruments
  • Time & frequency systems
Key Features:
  • Output 10 MHz
  • Input 1PPS from GPS / GNSS
  • Accuracy @ shipment typ. < 5x11 at 25c
  • Tempco < 1E-10
  • Temp -20 to 60C
  • Aging < 5E-11/mth
  • Holdover < 1µs/24hr*, < 7µs/week* < 3µs/24hr** < 7µs/24hr*** *temp profile +2C **temp profile within 20C ***temp profile wihting 40C
  • Warm-up time @ 25C 12 min, 5E-10 4-7 min(a) 25 min(b)
  • Power (operating) < 7-14W
  • Voltage 24V
  • Warmup < 35W
  • Size (WxHxL) 101.6x70.61x25.4mm | 4x2.78x1"
  • Weight 234 g | 0.51 lbs

Support and Documentation

SRO-100 Rb App Note: Product Guidlines
pdf (134KB)
SRO-100 Status 5 Alarm Application Note
pdf (187KB)
SRO-100 Tracking Function App Note
pdf (164KB)
iSync+ Smart SRO-100 & SRO-5680 SynClock+ Manual
pdf (1,473KB)
iSync+ Smart SRO-100 SynClock+ Spec
pdf (811KB)

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