iReference+® GPS/GNSS Rb/Maser standards

GNSSource -2500

Low Noise GPS/GNSS Rb Source (GNSSource-2500)

The GNSSource™ is a low-cost, high-performance primary GPS/GNSS rubidium reference standard in a compact 1U package. It integrates a low noise OCXO, a smart rubidium clock, and a GPS/GNSS receiver. It also uses the patented GPS/GNSS SmarTiming+® technology, disciplining the Rb clock with an auto-adaptive loop time constant of 1,000 to 100,000 seconds, depending on the GPS/GNSS signal quality, at cutting-edge 1ns resolution. 

RELATED PRODUCTS: See our product brochure to quickly compare other product features and performance.

Key Features*

*See or download the full Spec in the Documents page. 

Specifications Standard Options
Output
Number
Input
10 MHz & 1PPS
9 each
n/a 
10.23 MHz
17 each

Accuracy @ shipment typ. < 5x11 at 25c
Tempco
Temp
Aging
+1E-10
0 to 40C
< 5E-11/mth, typ. < 3E-11/mth


Stability (ADEV)
1s
10s
100s

2E-11
6E-12
2E-12
1E-11
3E-12
1E-12

Phase noise (10 MHz)
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
(dBc/Hz)
-80
-100
-125
-145
-145
-100
-130
-145
-155
-155
Holdover < 1µs/24hr*, < 7µs/week*
*temp profile +2C
Warm-up time @ 25C 15 min, 5E-10   
Power (operating)
Voltage
< 25w after warm up > 85-264VAC  
Size (WxHxL) 445x300x44mm (1U) | 17.51x11.81x1.73"
Weight 2.2 Kg | 4.85 lbs

Applications

It is typically used in the following applications:

  • Low noise GPS/GNSS rudidium atomic clock standard for cross-industry applications
  • Low noise GPS/GNSS Rb atomic clock reference for high-precision lab instruments
  • Low noise GPS/GNSS Rb atomic clock standard for scientific & lab projects
  • Low noise GPS/GNSS Rb atomic clock reference for mobile & radio network timing analyzers
  • Low noise GPS/GNSS Rb atomic clock for noise sensitive time & frequency systems

 

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