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Model 3314A
===
| өү
L Ü le TY
Performance Tests
SPECTRUM ANALYZER
VH
ATTENUATOR
Figure 4-16. Step Attenuator Accuracy
Specification:
0.001Hz to SOkHz
+ 0.05dB
SOkHz
to 19.99MHz
(20dB,40dB
Attenuation)
+ 0.3dB
50kHz
to
19.99MHz
(60dB
attenuation
only)
+0.5dB
Equipment Required:
Spectrum Analyzer
УНЕ Attenuator*
*NOTE
This attenuator must have current certifica-
tion data at frequencies of 50kHz, IMHz,
20MHz,
and attenuations of 20dB,
40dB,
and 60dB.
Procedures:
A. Preset the 3314A.
B. Set the 3314A as follows:
ІЕТЕСШМЕПСТ
ране
а
та
ый
к екен
SOkHz
Amplitude
..........................
10Vp-p
C. Set the Attenuator to 20dB attenuation.
D. Connect the 3314A to the Attenuator and
Spectrum Analyzer as shown in Figure 4-16.
E. Set the Spectrum Analyzer as follows:
1. Press "INSTR PRESET".
2. Enter Center Frequency (3314A Frequency Set-
ting).
3. Set Frequency Span to 2x Center Frequency.
4. Enable "COUNTER".
5. Press
"МКЕ— СЕ".
6. Disable COUNTER
7. Press "MANUAL".
8. Press "CLEAR А".
9. Press
'MKR- REF LVL''.
10. Set *dB/DIV" to 1dB.
11. Press "REF LVL" and adjust to approximate-
ly 1dB below full scale.
12. Set Video Bandwidth to 10Hz.
13. Press "OFFSET".
14. Press "ENTER OFFSET".
15. Press "SAVE (off), "4 (сају'.
4-19
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