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Model 3320A/B
PERFORMANCE TESTS
Section V
in the I
position.
This
performance test insures the
instrument meets the Frequency Accuracy specifications
listed in Table I-I. The specification is 0.01% of range.
3.
Connect an electronic counter to the 3320A!B front
panel OUlFUT jack.
b. Set the 3320A/B RANGE to MHz, VERN IN/OUT
to VERN IN, and FREQUENCY to 00.0150. The counter
indication should be 15.000 kHz ± 1.0 kHz.
c. Set the 3320A/B FREQUENCY to 12.9999. The
counter indication should be 12.9999 MHz ± 1.0 kHz.
d. Step the RANGE to each of the lower positions. The
counter indication in Step c should be divided by 10 with
each step.
5-11. Harmonic Distortion.
5-12. Tltis performance test insures the 3320A/B meets the
Harmonic Distortion specification listed in Table 1-1. The
specification is divided into three frequency ranges: - 60 dB
from 5 Hz to 100 kHz, - 50 dB from 100 kHz to I MHz,
and - 40 dB from I MHz
to
13 MHz.
3320A:
a. Connect the equipment as shown in Figure 5-].
b. Set the 3320A front panel controls as follows:
AMPLITUDE .......•.•......... Full CW
VERN IN/OUT
VERN IN
RANGE. .
.
100 kHz
FREQUENCY...
.
010.0
c. Set the 355D to J 0 dB, the 355C to 3 dB, and adjust
the wave analyzer for a 0 dBm meter indication at 10 kHz.
d. Tune the wave analyzer to the second, third, and
fourth harmonics of the 10kHz signal. Harmonic levels
should be at least 60 dB below the reference level set in
Step c.
e. Repeat Steps c and d for the following FREQUENCY
and RANGE settings:
RANGE
FREOUENCY
Specifications
100 kHz
129.9
·50 dB
1000 kHz
0150
-50dB
1000 kHz
1299
-40dB
10 MHz
04.00
-40dB
f.
Exchange the wave analyzer with a spectrum ana-
lyzer.
g. Set the 3320A FREQUENCY to 7.00. Adjust the
spectrum analyzer to display the 7.00 MHz reference signal
and the second, third, and fourth harmonics.
h. The harmonic signals should be at least 40 dB below
the 7.00 MHz reference.
WAVE ANALYZER
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312A
I~I
FREQUENCY SYNTHESIZER
hp
3320B
10DB/STEP
I DB/STE P
ATTENUATOR
ATTENUATOR
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355D
hp
355C
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SHORT
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CABLE
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CABLE
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HIGH
FREOUENCY
RANGES
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WAVE ANALYZER
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10
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LOW
FREOuENCY
RANGES
Figure 5-1. Harmonic Distortion.
5-3
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