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Calibration and Measurement Capabilities
Time and Frequency
In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a2 + b2]1/2
 
Result of the search
Your selection : Time and Frequency
 
Tunisia, DEF-NAT ( Laboratoire de Métrologie de la Direction Générale des Transmissions et de l'Informatique)
Complete CMCs in Time and Frequency for Tunisia (.PDF file)
Frequency. Frequency counter, 1E-02 Hz to 1E+07 Hz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3.1E-07 to 3.1E-05
Direct frequency mesurement
Averaging time: 100 s
Number of measurements: 30
Amplitude: >= 1 Vrms in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.3.1
Uncertainty table
 
Frequency. Frequency counter, 1E+07 Hz to 1.5E+10 Hz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3.1E-05 to 4.7E-02
Direct frequency mesurement
Averaging time: 100 s
Number of measurements: 30
Amplitude: >= 0 dBm in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.3.1
Uncertainty table
 
Frequency. Frequency counter, 15 GHz to 20 GHz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3 to 4
Direct frequency mesurement
Averaging time: 1 s
Number of measurements: 30
Amplitude: >= 0 dBm in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.3.1
Uncertainty table
 
Frequency. General frequency source, 1E-02 Hz to 1E+07 Hz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3.1E-07 to 3.1E-05
Direct frequency mesurement
Averaging time: 100 s
Number of measurements: 30
Amplitude: >= 1 Vrms in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.2.1.a
Uncertainty table
 
Frequency. General frequency source, 1E+07 Hz to 1.5E+10 Hz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3.1E-05 to 4.7E-02
Direct frequency mesurement
Averaging time: 100 s
Number of measurements: 30
Amplitude: >= 0 dBm in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.2.1.a
Uncertainty table
 
Frequency. General frequency source, 15 GHz to 20 GHz
Absolute expanded uncertainty (k = 2, level of confidence 95%) in Hz: 3 to 4
Direct frequency mesurement
Averaging time: 1 s
Number of measurements: 30
Amplitude: >= 0 dBm in 50 ohms
Approved on 27 March 2017
Internal NMI service identifier: DEF-NAT 2.2.1.a
Uncertainty table


 
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