Chapter 2 377
Performance Verification Tests
49. Tracking Generator LO Feedthrough: Agilent E4402B, E4403B, E4404B, E4405B, E4407B,
and E4408B(Option 1DN)
five minutes before proceeding.
Complete step 2 only if more than 24 hours have elapsed since
performing a front-panel calibration of the microwave analyzer.
2. Perform a front-panel calibration of the microwave analyzer by
performing the following steps:
a. Connect a BNC cable between CAL OUTPUT and 50 Ω Input.
b. Press CAL, REALIGN LO & IF.
c. Set FREQUENCY, 300 MHz.
d. Set SPAN, 20 MHz.
e. Set AMPLITUDE, –10 dBm.
f. Press PEAK SEARCH.
g. Press CAL, REF LVL ADJ and use the ⇑ ⇓ arrows to adjust the DAC
value to a marker amplitude reading of −10 dBm. Press
STORE REF LVL.
h. Disconnect the BNC cable from between the CAL OUTPUT and
50 Ω Input.
3. Press Preset on the analyzer under test. Press the Factory Preset
softkey, if it is displayed.
4. Use the type-N cable to connect the RF Input to the tracking
generator RF OUT on the analyzer under test as shown in Figure
2-69. Do not connect to the microwave analyzer RF Input yet.
5. Initialize the test equipment by pressing the following keys on the
analyzer under test:
FREQUENCY, 50 MHz
SPAN, Zero Span
BW / Avg, 30 kHz
System, Alignments, Auto Align, Off
Marker
Source, Amplitude On, –5 dBm
Source, Tracking Peak (Wait for the PEAKING SIGNAL message to
disappear.)
FREQUENCY, 9 kHz
Source, Amplitude On, –2 dBm
Single
6. On the microwave analyzer, press the following keys:
FREQUENCY, 3.921409 GHz
SPAN, 100 kHz
AMPLITUDE, 0 dBm
BW, 1 kHz
7. Disconnect the type-N cable from between the analyzer RF INPUT