Head Office
Markham, ON L3R 0H5, Canada
1. Internal Reference source.
The internal time reference, a voltage controlled OCXO with accuracy over 5ppb, is calibrated against an external 10MHz reference provided by a GPS receiver.
Factory calibration provides accuracy not less than +/-10Hz.
The accuracy degrades over time because of the crystal aging.
AVQ1020(2ndGen), AVQ1022(2ndGen), AVQ1022m(2ndGen)
If necessary, a customer can adjust the OCXO by using an external 10MHz source.
The OCXO frequency can be adjusted by ControlPanel->System->Factory Settings->Int. 10MHz Fine Tune.
AVQ1022(1stGen), AVQ1022m(1stGen)
AVQ1022 (1stGen) and AVQ1022m(1stGen) require a special procedure for the OCXO adjustment. Please contact us at support@avateq.com for further information.
2. Input signal power detector.
The power detector is calibrated by using a reference generator.
The calibration table is stored internally.
No re-calibration is required.
3. ALC gain.
The internal ALC gain is calibrated by using instrumental generators providing real broadcasting signals.
For Tx out mode -20dBm input level is a reference point.
The calibration procedure optimizes the ALC gain.
No re-calibration is required.