HP 3580A Operating And Service Manual page 75

Model 3580A
PERFORMANCE TESTS
Section V
Option 002: Set dBm 900 n/LIN - dBm 600 n
switch to dBm 900 n; set INPUT MODE switch
to UNBAL.
b. Connect a properly terminated frequency synthe-
sizer to the 3 580A INPUT and adjust the source for a
10 kHz, 0 dBV output level (- 20 dBm 900 n for instru-
ments with Option 002).
NOTE
See Table 5-3 for the proper level to use with
your source. See Figure 5-2 for the proper hook-
up with an -hp- 3320B Frequency Synthesizer.
Table 5-3. Conversion Table.
3580A INPUT 33208 or OTHER ABSOLUTE
SIGNAL LEVEL 50 OHM SOURCE VOLTAGE
+
10 dBv
+
23.01 dBm 3.162volts
+
10dBm 9000
+
22.55 dBm 3 volts
OdBv
+
13.01 dBm 1 volts
OdBm900
n
+
12.55 dBm
.949 volts
- 10 dBv
+
3.01 dBm .3162 volts
- 10 dBm 900
.n
+ 2.55dBm .3000 volts
- 20 dBv - 6.99dBm
.1 volts
- 20 dBm 900
.n
- 7.45dBm .0949 volts
- 30 dBv - 16.99 dBm
.03162 volts
- 30 dBm 900
.n
-17.45dBm . 03 volts
- 40dBv - 26.99 dBm .01 volts
- 40 dBm 900
.n
- 27.45dBm .095 volts
- 50 dBv - 36.99 dBm 3162 mV
- 50 dBm 900
.n
- 37.45 dBm 3mV
- 60 dBv - 46.99 dBm 1 mV
- 60 dBm 900
.n
- 47.45 dBm .95mV
- 70 dBv
- 56.99 dBm .3162 mV
- 70dBm900
n
- 57.45 dBm .3mV
- 80 dBv - 66.99 dBm .1 mV
- 80 dBm 900
.n
- 67.99 dBm .095 mV
c. By alternately pressing and releasing DISPLAY -
CLEAR WRITE while adjusting MANUAL VERNIER,
center the display indication (a narrow spike). Adjust
ZERO CAL for a peak display of this spike.
d. Adjust the front panel ZERO CAL for a peak
indication.
0
0
0
SPECTRUM ANALYZER
hp 3580A
Do
@@
@@
50n FEED-THRU
TERMINATION
...r.c
hpll048C
:1u:
;;-"
e. Adjust the front panel VERNIER (Amplitude) for a
- 1 dB display indication. Note: The display indication is
calibrated 1.0 dB per major division.
f. Reposition the following front panel control:
RESOLUTION BANDWIDTH . . . . . . 100 Hz
g. Adjust the front panel ZERO CAL for a peak display
indication. The display indication should be-1 dB ± .5 dB.
h. Reposition the following front panel control:
RESOLUTION BANDWIDTH ....... 30 Hz
i. Slowly adjust MANUAL VERNIER for a peak display
indication. The peak indication should be - 1 dB
±
.5 dB.
Momentarily press DISPLAY - CLEAR WRITE.
j. Reposition the following front panel control:
RESOLUTION BANDWIDTH . . . . . . . 10 Hz
k. Readjust MANUAL VERNIER for a peak display
indication. The peak indication should be - 1 dB
±
.5 dB.
Momentarily press DISPLAY - CLEAR WRITE .
I. Reposition the following front panel control:
RESOLUTION BANDWIDTH . . . . . . . . 3 Hz
m. Slowly readjust MANUAL VERNIER for a peak
display indication. The peak indication should be - 1 dB
± .5 dB. Momentarily press
DISPLAY - CLEAR WRITE.
n. Reposition the following front panel control:
RESOLUTION BANDWIDTH . . . . . . . . 1 Hz
o. Very slowly readjust MANUAL VERNIER for a peak
display indication. The peak indication should be - 1 dB
±
1 dB.
Ill
FREQUENCY SYNTHESIZER
hp 33208
0 0 0 0 0
0
0
0 0
[]]
' i >
3580- B- 3588
Figure 5-2. Proper Hookup.
5-5