HP 3562A, Руководство по обслуживанию

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PERFORMANCE TESTS
MODEL 3562
2-72
4. Adjust the ampl itude of frequency synthesizer #2 until Ya
o
dB ± 50 mdB.
5. Press the H P 3562A keys as fol lows:
AVG
STA BLE
Table 2-1 5 Intermodulation Distortion
Measurement Two
Fundamental H armonic
Frequencies Frequency
F1 F2
89 kHz 99 kHz 1 0 kHz
89 kHz 99 kHz 79 kHz '
89 kHz 99 kHz 20 kHz
89 kHz 99 kHz 69 kHz
J .
For each of the harmonic frequencies listed i n table 2-1 5 perform steps 1 through
3:
1 . Press the H P 3562A keys as fol lows:
FREQ
CENTER FREQ
START
To harmonic frequency
in table
x
To harmonic frequency in table
2. If the Ya marker read ing is less than or equal to -80 dBVrms, check PASS on the
Performance Test Record for measurement two, channel 1 with the BNC shell
floating.
3. If the Yb marker read ing is less than or equal to -80 dBVrms, check PASS on the
Performance Test Record for measurement two, channel 2 with the BNC shell
floating.
K. Connect the test instruments as shown in figure 2-24 so the center conductor of
each channel's BNC is grounded.
L. For each of the harmonic frequencies listed in table 2-1 5 perform steps 1 through
3:
1 . Press the H P 3562A keys as fol lows:
FREQ
CENTE R FREQ
START
To harmonic frequency
in table
x
To harmonic frequency in table