HP 5334B Service Manual page 86

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~
NOTE
For 53348 instruments equipped with Option 060, set Signal Generator
amplitude to 40.0 mV
+
0.4 mV. Terminate the unused Channel A and B
rear inputs with 50R loads.
2. Set the 5334B as follows:
FUNCTION
................................
FREQ A
SENS (blue key)
..............................
ON
INPUT A SENS Control
...............
MAX
INPUT A 50n
.................................
ON
GATE TIME
...................................
1 Second
INPUT A SLOPE
...........................
OFF (positive)
3. Connect the Signal Generator output to the 5334B Input A. Connect Time Base as shown in Figztre 5-8.
4. Adjust AIR130 (CH A) for a 5334B front panel display of 70.000 000 MHz
+
4 Hz at both the positive and
negative slope settings.
5. Decrement the Signal Generator amplitude by 3 mV rms.
6. Adjust AIR130 (CH A) for a 5334B front panel display of 70.000 000 MHz
+
4 Hz at both the positive and
negative slope settings. If this adjustment is not possible because the signal level has dropped below the
Counter's sensitivity limit, go to step 10. Otherwise, continue on to step 7.
7. Set the Signal Generator frequency to 104 MHz.
8. Adjust AIR130 (CH A) for a 5334B front panel display of 104.000 000 MHz +- 4 Hz at both the positive
and negative slope settings. If this adjustment is not possible, go to step 10. Otherwise continue on to step 9.
9. Set the Signal Generator frequency to 70 MHz and repeat steps 5 through 9 until adjustment is no longer
possible and this loop is exited from step 6 or 8.
10. Increment the Signal Generator amplitude in 0.3 mV rms steps until Counter displays a stable frequency
count.
11. Set the Signal Generator frequency to 104 MHz.
12. Adjust AIR130 (CH A) for a 5334B front panel display of 104.000 000 MHz
t
4 Hz at both the positive
and negative slope trigger settings. If this adjustment is not possible, repeat steps 10 through 12 until this ad-
justment is completed and then continue with step
13.
13. Set the Signal Generator frequency to 70 MHz.
14. Adjust AIR130 (CH
A)
for a 5334B front panel display of 70.000 000 MHz
k
4 Hz at both the positive and
negative slope settings. If this adjustment is not possible, repeat steps 10 through 14 until this adjustment is
completed and then continue with step 15.
15. Set the Signal Generator frequency to 70 MHz and the amplitude to 28.0 mV
+.
0.3 mV.
HP 5334B
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Service Manual
5-14