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Note
Calibrating the HP 8593EM EMC Analyzer
Improving Accuracy with Self-Calibration Routines
Warm-up time
For signals that are close to the noise
oor or modulate in frequency,
it is best to make the measurement as described in the previous step
without using the Measure at Marker feature.
a. Repeat Step 1 above.
b. If the signal of interest is greater than 2.9 GHz, perform a
preselector peak by pressing,
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PRESEL PEAK .
c. Activate the average detector by pressing,
ON is underlined.
This section describes procedures for calibrating the HP 8593EM EMC
analyzer.
Data from the self-calibration routine is necessary for EMC analyzer
operation. Executing the self-calibration routine regularly ensures
that the EMC analyzer is using current calibration data that improves
the EMC analyzer frequency and amplitude accuracy. Press the
key to view the self-calibration routine menus. The last softkey on
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this menu, labeled
More 1 of 4 , provides access to additional
self-calibration functions.
The self-calibration routines add correction factors to internal
circuitry. The addition of the correction factors is required to meet
frequency and amplitude speci cations.
When the correction factors are added to internal circuitry, CORR
(corrected) appears on the left side of the screen.
In order for the HP 8593EM EMC analyzer to meet its speci cations,
allow the EMC analyzer to warm up for 30 minutes after being turned
on, before attempting to make any calibrated measurements. Be
sure to calibrate the EMC analyzer only after it has met operating
temperature conditions.
The EMC analyzer frequency and amplitude self-calibration routines
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are initiated by the
CAL FREQ & AMPTD softkey in the menu located
under the
key.
4
5
CAL
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,
More 1 of 3 ,
4
5
AMPLITUDE
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,
AVG ON OFF until
4
5
DET
Making Measurements 6-5
4
5
CAL
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