Procedure - HP 70427A User Manual

Procedure

Step 1 - Change the HP 70427A Parameters
a. Press the
Source Control
b. Press the
70427A Parms
Move the cursor to the
System Spectrum Analyzer Connection Port
line and select HP 70427A.
Step 2 - Begin Measurement
The HP 3048A software will connect the RF spectrum analyzer to the
appropriate signals throughout the measurement. When the software pauses
as the connect diagram, the beatnote will be displayed.
Step 3 - To manually switch the RF spectrum analyzer connection
The RF spectrum analyzer view can be selected from the connect diagram.
1. When the software pauses at the connect diagram, access the
screen by pressing the
PARAMETERS
2. Move the cursor to the
spectrum analyzer as follows:
a. Downconverter input: select
The downconverter's input signal is routed to the RF spectrum analyzer
after it passes through the input attenuator. It does not go to the mixer or
IF output.
b. Downconverter IF: select
A sample of the downconverter's IF output is routed to the RF spectrum
analyzer. The downconverter operates normally.
c. HP 11848A: select
The spectrum analyzer signal from the HP 11848A is routed to the RF
spectrum analyzer (if the HP 11848A's SPECTRUM ANALYZER
output is connected to the downconverter's rear-panel SPECTRUM
ANALYZER FROM HP 11848A connector).
Proceed with the measurement. The software will resume control of the
RF spectrum analyzer connection.
Spectrum Analyzer Connection System Control
softkey.
softkey.
70427A Parms
Spectrum Analyzer View
INPUT
IF
None
HP 70427A/HP 70428A User's Guide 3-41
Downconverter Operation
HP 70472
softkey.
line and select the RF