HP 8340B Manual page 155

5-8. YO LOOP ADJUSTMENTS (Cont'd)
MINIMUM
-F
12. Set the Spectrum Analyzer as follows:
a. Press [INSTRPRESET]
b. Set CENTER FREQ to 30 MHz
c. Set FREQUENCY SPAN to 60 MHz
d. Press Marker [PEAKSERACH] then [SIGNAL TRACK].
e. Set REF LEVEL to +10 dBm.
13. On the Sweep Generator press [CWJthen adjust the rotary knob to set a frequency that will
produce a center frequency readout on the Spectrum Analyzer of 25.0 MHz. (See Figure 5-21.)
Turn off [SIGNALTRACK] on Spectrum Analyzer.
14. On the OUT, adjust A48R1 (IF GAIN) for a 25 MHz signal displayed on the Spectrum Analyzer of
approximately 0 dBm.
15. Set the Spectrum Analyzer as follows:
a. Press [INSTRPRESET]
b. Set CENTER FREQUENCY to 50 MHz
c. Set FREQUENCY SPAN to 100 MHz
d. Set REFERENCE LEVEL to +10 dBm
e. Select 5 dB/DIV
f. Select MAX HOLD on Trace A
5-46 Adjustments
7-a :: ~-77>:
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160 MHz
Figure 5-20. Typical Swept Frequency Response at A48TP1
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210 MHz
HP 8340B/41B