HP 3562A, Service Manual

Page: 91 / 570

'I
ODE L 3562A
PERFORMANCE TE STS
2. Adjust the ampl itude of frequency syntheziser #1 until Ya = O dBVrms ± 50 mdB.
3. Press the H P 3562A keys as fol lows:
x 26
kHz
4. Adjust the amplitude of frequency syntheziser #2 until Ya = O dBVrms ± 50 md B.
5. Press the HP 3562A keys as fol lows:
AVG
SCALE
1 6
STABLE
Y FIXD
SCALE
Table 2-1 4 Intermodulation Distortion
Measurement One
Fundamental H armonic
Frequencies Frequency
F1 F2
20 kHz 26 k H z 6 kHz
20 kHz 26 kHz 14 kHz
20 kHz 26 kHz 1 2 kHz
20 kHz 26 kHz 8 kHz
ENTER
- 1 00, .1
dB
D. For each of the harmonic frequencies l isted in table 2-1 4 perform steps 1 through
3:
1 . Press the H P 3562A keys as fol lows:
F REQ
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 one, channel 1 with the BNC shell
grounded.
3. If the Yb marker read ing is less than or equal to - 80 dBVrms, check PASS on the
Performance Test Record for measurement one, channel 2 with the BNC shell
grounded.
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