3-4 Calibration Verification Calibration
3-2 PN: 10580-00241 Rev. B Cable & Antenna Analyzer MG
3-4 Calibration Verification
During the calibration process in Return Loss mode (Measurements > Return Loss), either
with discrete calibration components or with the InstaCal module, there are typical
measurement levels expected. Verifying the measurement levels displayed on the screen
during calibration can save valuable time in the field.
Trace Characteristics in Return Loss Mode
As the individual calibration components are connected to the RF out port, the following
measurement levels will be displayed on the screen:
• When an OPEN is connected, a trace will be displayed between 0 dB to 10 dB.
• When a SHORT is connected, a trace will be displayed between 0 dB to 10 dB.
• When a LOAD is connected, a trace will be displayed between 0 dB to 50 dB.
Table 3-1. Summary of Calibration Methods and Tools
Calibration Type
Calibration Tool
OSL InstaCal
Standard Cal
(recalibrate every time
frequency is changed)
Most Accurate Cal Method/
Need to recalibrate if frequency
changes
This will provide the best
accuracy.
Recommended for reporting
Fastest Calibration Method.
Need to recalibrate if frequency
changes
Fast cal method.
Recommended for reporting
FlexCal
(no need to recalibrate
when frequency is
changed)
Most accurate cal method.
No need to recalibrate if
frequency changes.
Recommended for
troubleshooting.
Fastest Cal Method /
No need to re-calibrate if
frequency changes.
This is the fastest and most
convenient combination.
Recommended for
troubleshooting.