3-8 PN: 10580-00321 Rev. M S331L UG
3-3 Overview Cable and Antenna Measurements
Calibration
For accurate results, the instrument must be calibrated before making
any measurements.
The Cable and Antenna Analyzer mode requires calibration standards
for OPEN, SHORT, and LOAD (OSL), which are sold separately.
Alternatively, you can use the internal InstaCal. The external InstaCal
Calibration Module is NOT compatible with the Site Master S331L. For
Transmission measurements, the external USB sensor itself is used as
part of the calibration step, and no additional components are needed.
The instrument must be re-calibrated whenever the temperature
exceeds the calibration temperature range window or when the test port
extension cable is removed or replaced. Unless the calibration type is
Flex, the instrument must also be re-calibrated every time the setup
frequency changes. Refer to Chapter 7 for details on how to perform a
calibration.
1 Average Cable Loss
Figure 3-6. Cable Loss Measurement
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