HP 8711C User Manual

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Calibrating for Increased Measurement
Accuracy
Choose an Appropriate Calibration Method
To Perform a Conversion Loss Calibration
Conversion loss measurements typically utilize only a normalization
calibration. See “To Perform a Normalization Calibration” earlier in this
chapter.
When in conversion loss measurement mode, the analyzer is using its internal
broadband detectors and pressing the (CAL) key calls up a menu for zeroing
the detectors. Zeroing the detectors helps compensate for drift due to changes
in ambient temperature. The two m selections for conversion loss mode
are:
Autozero periodically compensates for detector drift due to changes in
temperature. When autozero is selected, the detectors are automatically
zeroed approximately every five minutes. A pop-up message will briefly
appear on the analyzer’s display when the detectors are zeroed.
In manual zero mode, the analyzer zeros the detectors only when the
Mamal Zero softkey is pressed.
NOTE
When zeroing the detectors, the analyzer turns off the internal RF source. If you are measuring an
external source with the broadband detectors, use Manual Zerr, bei’ke the external source is
connected to the TRANSMISSION port.
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HP 8711C Specifications

General

Brand	HP
Model	8711C
Category	Measuring Instruments
Language	English