68 N9912A FieldFox User’s Guide
Calibration Method Summary
O,S,L is ALWAYS the most accurate Cal method. The quality of an O,S,L Cal is
completely dependent on the quality of the OPEN, SHORT, LOAD standards.
Use high quality standards to ensure the most accurate calibration.
QuickCal is ideal for DTF measurements. QuickCal should be performed when
good accuracy is required and when using a jumper cable or adapter.
o During QuickCal, do NOT ‘Skip Load’ when measuring a DUT with good
match (Return Loss better than 15 dB).
Preset Cal is ONLY useful for DUT connections made at the RF Out port and
most accurate at room temperature.
For highest accuracy, a new QuickCal or O,S,L Cal should be performed:
o when the temperature changes more than about 10°F (5°C)
o when the connection to the DUT requires a different jumper cable or
adapters.
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