HP ESA-L1500A, User'S And Calibration Manual

Page: 294 / 326

Chapter 9 293
Performance Verification Tests
22. Tracking Generator Level Flatness, Options 1DN and 1DQ
CAUTION
Use only 75
Ω
cables, connectors, or adapters on instruments with 75
Ω
connectors or damage to the connectors will occur.
Figure 9-25 Tracking Generator Level Flatness Test Setup
Procedure
1. Press
Preset
on the spectrum analyzer, then wait for the preset
routine to finish. Set the spectrum analyzer by pressing the
following keys:
Frequency
,
50 MHz
CF Step Auto Man
,
100 MHz
Span
,
Zero Span
Source Amptd
,
Amplitude On Off
(On),
0 dBm
(50
Ω
RF Output only)
Source Amptd
,
Amplitude On Off
(On),
+42.76 dBmV
(75
Ω
RF Output only)
Single Sweep
2. Zero and calibrate the measuring receiver and 100 kHz to 1.5 GHz
power sensor in log mode (power reads out in dBm), as described in
the measuring receiver operation manual. Enter the power sensor
50 MHz Cal Factor into the measuring receiver.
75
Ω
RF Out only: Zero and calibrate the 75
Ω
power sensor.
3. Connect the 100 kHz to 1.5 GHz power sensor to the RF Out 50
Ω
.
Refer to Figure 9-25 .
75
Ω
RF Out only: Connect the 75
Ω
power sensor through an adapter
to the RF Out 75
Ω.