iSync+® GPS/GNSS OCXO/Rb modules

GXClok-500

GPS/GNSS OCXO Clock Module (GXClok-500)

The GXClok-500 is a smart, low cost, ultra small GPS/GNSS-disciplined OCXO clock module (GPSDO) or a fully GPS/GNSS-integrated OCXO clock module, using the advanced u-Blox's M8-T GPS/GNSS receiver. It uses the auto-adaptive SmarTiming+ technology, disciplining the GPS/GNSS reference up to 100,000 seconds at 1ns resolution, depending on the GPS/GNSS' 1PPS reference noise and signal-impairment level. It provides a host of complex time and frequency features in a single module, while achieving state-of-the-art performance, reliability and extended lifetime.

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
Input


10 MHz




1PPS from GPS/GNSS
or
GPS/GNSS receiver inside

Accuracy @ shipment +1E-12 GPS/GNSS-locked
+3E-10 GPS/GNSS-unlocked
Tempco
Temp
Aging
< 6E-9
-10 to 70C
+3E-10/day

-40 to 85C
+1E-10/day
Stability (ADEV)
1s

5E-12

2E-12

Phase noise @ 10 MHz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
(dBc/Hz)
-95
-120
-140
-145
-150


Holdover < 25µs/24hr
< 10µs/24hr
Warm-up time @ 25C 7 min, 1E-7   
Power (operating)
Voltage
Warm-up
< 250mA
12V
< 700mA
 
Size (WxHxL) 76x20x38mm | 3x0.8x1.5"
Weight 40 g | 1.41 oz
Vibration sensistivity see spec  
Low g sensitivity n/a  

Applications

It is typically used in the following applications:

  • Mobile & wired telecom, datacom and broadcast infrastructures
  • Military communications, SATCOM & surveillance systems
  • High precision instruments
  • Time & frequency systems
  • Financial trading systems
  • Big data timing systems
  • Navigational & positioning systems
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