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Calibration of a reference oscillator + frequency counter + two signal generators

[Taratura di un oscillatore di riferimento + un frequenzimetro + due generatori di segnali sintetizzati]

EPTIS factsheet 1439769 | Last revision 2025-11-03 | URL: https://www.eptis.bam.de/pts1439769 https://www.eptis.bam.de/pts1439769

PT provider
PT provider La Giusta Misura s.a.s. La Giusta Misura s.a.s.
Based in Italy
Language(s) English, Italian
Remarks - Calibration of the reference oscillator is performed with the oscillator phase locked to the internal GPS receiver. - Calibration of the frequency counter and the signal oscillators are performed with the time base phase locked to the reference oscillator - Partial calibration, related to measuring functions or measuring ranges, is allowed. - An antenna for receiving the GPS signal and an antenna signal splitter (for laboratories using their own GPS antenna) are provided. - The calibration uncertainties (CMC) of the reference laboratory are as follows: reference oscillator: U = 5E-13 signal generators: U = 2,4E-12 (f > 0,2 Hz); 6,2E-12 (f = 0,1 Hz) frequency counter: U = from 2E-12 to 1,3E-11 (f > 0,5 Hz); 1E-6 (f = 0,1 Hz)
Keywords
Product groups Electrical / electronical devices
Testing fields Calibration
Technical details
Test item Tested property Testing method
Frequency counter Fluke PM6690 Frequency counter errors on decadic frequency values from 0,1 Hz to 2,7 GHz with time base from the reference oscillator Frequency counter calibration by comparison with frequency reference signals
Signal generator HP3325B Signal generator errors on decadic frequency values from 0,1 Hz to 10 MHz, phase locked to the reference oscillator Calibration of the signal generator by means of reference frequency measurements
Reference oscillator HP58503A Frequency of reference output signal (10MHz) phase locked to an internal GPS receiver High accuracy frequency measurement
Signal generator Agilent 83630 Signal generator errors on decadic frequency values from 10 MHz to 20 GHz, phase locked to the reference oscillator Calibration of the signal generator by means of reference frequency measurements
Aims of the PT scheme
Target group of participants European Calibration Laboratories
Linked to specific legislation / standards no
Additional, subsidiary aims validation of testing methods
Number of participants 10
Accredited or otherwise reviewed by a 3rd party

Accredited by no on the basis of

no

Operation is commissioned / requested by no
Fees and frequency
Participation fee 1400 euro
Regularly operated Yes (once every two years)
Year of first operation 2026 January
Contact details of the PT provider
Provider Contact person
La Giusta Misura s.a.s.
via G. Verdi 11
24068
Italy

Phone: +39 3284931186
Fax:
Web: https://www.lagiustamisura.it https://www.lagiustamisura.it
ing. Aldo Ponterio
Phone: +39 3284931186
Fax:
Email: info@lagiustamisura.it info@lagiustamisura.it
If you find any mistakes please contact the responsible EPTIS coordinator in Italy, Ms Laura Galli. Ms Laura Galli.
Any questions or problems? Please contact us at eptis@bam.de.
Application version: 1.23-SNAPSHOT.20230502124635-7925ae379a631fc1ececff45d2921c8db38877d5