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5-10 HARMONICS The harmonics test measures and displays the harmonics in the device
under test.
Procedure
Prepare the ME7840A as shown in Chapter 3.
Enter the appropriate test values in the displayed
User Input screen. The input fields are described
below:
n
Measurement Type: Already set to “HA” for Har
-
monics – input disabled.
n
Start Frequency (MHz): Lower frequency to be
displayed. Typically set to a value less than or
equal to the main tone.
n
Stop Frequency (MHz): Upper Frequency to be
displayed. Set to a value less than the system’s
maximum frequency (for example, for MS4623C
set to a max of 5000 MHz).
n
Main Tone (MHz): CW Frequency setting for
source 1.
n
Input Power: Input RF power to AUT.
n
Test Set Setting: Byte value for setting test set
attenuation and source switch:
OPERATIONS, MEASUREMENT HARMONICS
ME7840A OMM 5-29
Internal Source Value External Source Value
0dB 8 0dB 0
10 dB 9 10 dB 1
20 dB 10 20 dB 2
30 dB 11 30 dB 3
40 dB 12 40 dB 4
50 dB 13 50 dB 5
60 dB 14 60 dB 6
70 dB 15 70 dB 7