3320B Frequency Response, 10 Hz - 13 Mhz; 3320B Attenuator Accuracy, 10Khz - HP 3320A Operating And Service Manual

Model 3320A/B PERFORMANCE TESTS Section V
c. Perform Steps c and d of the 3320A section of this
performance check.
d. Set the 3320B FREQUENCY, RANGE, and Vernier
to the positions listed in Table 5-3. The peaks on the
oscilloscope should not vary mOre than ± 0.2 em.
Table 5-3. 3320B Frequency Response <0.01 Hz - 10 Hz),
d. Set the 3320B RANGE and FREQUENCY to the
positions listed in Table 5-4. The de voltmeter indication
should not vary more than ± 70
IlV. Multiply the de
voltmeter indications by 71.5 to transpose the errors to mV
indications. Record these adjusted indications. These read-
ings will be used in the 3320B Output Altenuator Fre-
quency Response performance test.
Table 5·4. 3320B Frequency Response (10 Hz - 13 MHz),
RANGE FREQUENCY
Vernier
1000 Hz
0010 00
1000 Hz 0005 00
1000 Hz 0001 00
1000 Hz
0000 99
1000 Hz
0000 55
1000 Hz
0000 10
1000 Hz
0000 01
!i-21. 3320B Frequency Response. 10 Hz ·13 MHz.
RANGE FREQUENCY
10 MHz 12.99
10MHz 00.01
1000 kHz 1299
1000 kHz 0001
100 kHz 129.9
100 kHz 000.1
10 kHz 12.99
10 kHz 00.01
1000 Hz 1299
1000 Hz
00'0
!i-23. 3320B Attenuator Accuracy. 10 kHz.
5-22. This performance test insures the 3320B meets the
Frequency Response specifications listed in Table I-I with
the 10 dB altenuator in the straight through position. The
specification is ± 0.05 dB (referenced to 10kHz).
a. Set the 3320B front panel controls as follows:
AMPLITUDE (Standard)
+
26.99 dBm
(Option 001)
+
24.99 dBm
VERN IN/OUT VERN OUT
RANGE.. . 10 kHz
FREQUENCY 10.00
LEVELING
ON (> 10Hz)
5-24. This performance test insures the 3320B meets the
attenuator accuracy specification listed in Table I-I. The
specification is ± 0.02 dB/IO dB step, 10 kHz, referenced
to the straight-through position of the output attenuator.
This specification is accumulative as attenuation is added to
the output. The tolerance for each added step is equal to
the tolerance of the previous step plus 0.02 dB. The output
of the 3320B is applied to a wave analyzer through a
calibrated attenuator. The wave analyzer detects the 3320B
output signal and applies ,he detected signal to a de
voltmeter. The dc voltmeter indications are recorded for
later use in determining the 3320B output attenuator
frequency response.
b. Connect the equipment as shown in Figure 5-5.
a. Connect the equipment as shown in Figure 5--6.
c. Adjust the AMPLITUDE of the 3320B for a
7.000 mV ± 10 IlV
indication on the de voltmeter.
NOTE
NOTE
Do not change the setting of the 3320B 10 dB
attenuatar.
This performance rest uses a 355A 10 dB
attenuatar with a known accuracy on the 0 dB
and 10 dB settings. The error in the attenuacor
must be considered in determining the error of
the 3320B.
FREOUENCY SYNTHESIZER
hp
3320B
MULTI-FUNCTION METER
hp
3450A
FOR OPTION 001 USE
lip
II049A ,OPTION HOI
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THERMAL CONVERTER
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II049A
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NOTE
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CONNECT DIRECTLY TO 33206
OR USE SHORT CABLE.
Figure !i-5. 3320B Frequency Response (10 Hz - 13 MHz).
5-7