Tektronix RSA3408B, Service Manual

Page: 57 / 250

Performance Tests
RSA3408B Analyzer Service Manual
3- 25
Noise Sideband Checks
These procedures check the noise sideband-related characteristics and are listed
as checked in Specifications of the RSA3408B Technical Reference.
Equipment
Required
One signal generator (Item 4)
One 50
Ω
N-N coaxial cable (Item 11)
Prerequisites Refer to page 3--10.
1.
Prepare for the test:
a.
Initialize the analyzer:
H
Press the System key on the front panel.
H
Press the Reset All to Factory Defaults side key.
b. Modify the default settings:
H
Press the Frequency/Channel key on the front panel.
H
The
Center Freq
menu item is selected by default.
Set the frequency to 1 GHz using the numeric keypad.
H
Press the Amplitude key on the front panel.
H
Press the RF Atten/Mixer side key to select Mixer .
H
The
Mixer Level
menu item is selected by default.
Set the level to --10 dBm.
H
Press Trace/Avg > Trace 1 Type... > Average .
H
Press the Number Of Averages side key and set the value to 50
using the general purpose knob.
c. Set the generator controls:
Frequency 1000 MHz . . . . . . . . . . . . . . . .
Amplitude 0 dBm . . . . . . . . . . . . . . . .
RF output On . . . . . . . . . . . . . . . .
d. Hook up the signal generator:
Connect the generator output through a 50
Ω
N-N coaxial cable to the
analyzer Input . See the following figure.
Check Noise Sideband