Preset Calibration; Quickcal - Keysight N9912A User Manual

OPEN, SHORT, and LOAD are calibration standards. These are precision components
that are used during calibration and to terminate a DUT during some measurements.
When an RF signal 'hits' these components, the signals are reflected in a predictable
manner.
 A SHORT and OPEN standard both cause 100% of an RF signal to be reflected.
 A LOAD standard completely absorbs the incident signal and NO signal is reflected
Calibration Reference Plane is the point at which cal standards are connected during
a calibration. This can be either the FieldFox RF OUT connector, or at the end of a
jumper cable or adapter.
Preset Calibration (also known as CalReady)
Every FieldFox is factory calibrated at the RF Out connector over the entire frequency
range of the FieldFox using a number of data points that allows reasonable
interpolation over the FieldFox frequency range.
This CalReady condition allows you to start using your FieldFox immediately if you
are measuring a device that is directly connected to the RF Out test port. CalReady
applies to the entire frequency range of the FieldFox. It can be used to check the
integrity of the jumper cable.
Cal ON
When measuring a DUT using a jumper cable or adapter - NOT a direct connection
to the RF Out connector – then a QuickCal or O,S,L Cal is recommended.
Learn how to see when your factory CalReady calibration was performed on page
183.

QuickCal

QuickCal is ideal for a quick and simple calibration of the measurement when using a
jumper cable or adapter to connect the DUT to the FieldFox test ports. QuickCal
corrects for phase shift, time delay, and loss of adapters or jumper cables.
QuickCal does not require a specific Cal Kit and is a very simple calibration. If the
highest accuracy is required, a mechanical calibration with a high quality calibration
kit is recommended.
If the DUT has 3.5 mm-female or SMA-female connectors, QuickCal is NOT
recommended.
How to perform a QuickCal
Press Esc at any time during the QuickCal to stop the calibration.
 In CAT, NA, or VVM Mode, press Cal 5.
 Then (if necessary) press
 Then
Calibration for CAT, NA, and VVM Modes
The difference between these two standards is what happens to the phase of the
reflected signal, which is beyond the scope of this discussion. Although an OPEN
standard is a precision component, simply leaving nothing connected at the end of
a cable can be a reasonable substitute for an OPEN.
back to the source.
is shown on the screen when powered ON or Preset.
Start Cal.
to see [QuickCal].
Cal Type
61