Things To Try - HP 8530A Operating And Programming Manual

Important Note On Antenna Measurements
The frequencies you measure must exactly match the frequencies in the cal set le.
any other
receiver does not interpolate between frequencies in the cal set.
Entering a known, convenient step size makes it easy to know what frequencies are in the cal
set. Thus, you know precisely which frequencies you can measure with that calibration.

Things to Try

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CAUTION: CORRECTION RESET
The
CAL
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Menus Block 5-17