Agilent Technologies 4395A, Service Manual

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Note
Connect the sp ectrum analyzer's 10 MHz frequency reference output to the
4395A EXT REF Input on the rear panel as sho wn in Figure 2-6 . With this
conguration, b oth the sp ectrum analyzer and the 4395A are phase lo c k ed to
the same reference frequency to eliminate frequency oset errors.
2. Initialize the sp ectrum analyzer, and p erform the FREQ ZER O calibration in accordance
with the sp ectrum analyzer man ual.
3. On the sp ectrum analyzer, set the con trols as follo ws:
Con trols Settings
Reference Lev el +10 dBm
4. Press 4 Meas 5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ANALYZER TYPE ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NETWORK ANALYZER , 4 Preset 5 to initialize the 4395A. Then set
the con trols as follo ws:
Con trol Settings Key Strok es
F requency Span: 0 Hz
4 Span 5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ZERO SPAN
Source P o w er: +10 dBm
4
Source
5,
NNNNNNNNNNNNNNNNN
POWER , 4
1
5, 4
0
5, 4
x1
5
5. |Harmonics T est|
a. On the 4395A, press 4 Center 5, 4 1 5, 4 0 5, 4 k/m 5 to set the cen ter frequency to the rst cen ter
frequency listed in the rst column of T able 2-6 . T able 2-6 lists test frequencies.
T able 2-6. Harmonics T est Settings
4395A
Cen ter F requency
Sp ectrum Analyzer
2nd Harmonics 3rd Harmonics F requency RBW
F requency F requency Span
10 kHz 20 kHz 30 kHz 1 kHz 30 Hz
500 kHz 1 MHz 1.5 MHz 1 kHz 30 Hz
10 MHz 20 MHz 30 MHz 1 kHz 30 Hz
100 MHz 200 MHz 300 MHz 1 kHz 30 Hz
250 MHz 500 MHz 750 MHz 1 kHz 30 Hz
500 MHz 1.0 GHz 1.5 GHz 1 kHz 30 Hz
b. On the sp ectrum analyzer, p erform the follo wing steps to measure the second and third
harmonic lev el of the rst test frequency 10 kHz.
i. Set the 8566A/B cen ter frequency to the same v alue as the 4395A cen ter frequency .
ii. Set the 8566A/B frequency span and RBW in accordance with T able 2-6.
iii. Press 4 SINGLE 5 to make a sw eep. W ait for the completion of the sw eep.
iv. Press 4 PEAK SEARCH 5, 4 1 5 to mov e the marker to the p eak of the fundamen tal signal
and to place the delta maker reference at the p eak.
v. Set the 8566A/B cen ter frequency to the second harmonics frequency listed in the
second column of T able 2-6.
vi. Press 4 SINGLE 5 to make a sw eep. W ait for the completion of the sw eep.
vii. Press 4
PEAK SEARCH
5 to mov e the marker to the p eak of the second harmonic.
viii. Record the delta marker reading in the calculation sheet (\Delta Marker Reading"
column).
2-16 P erformance T ests