Tektronix RSA3408B, Service Manual

Page: 60 / 250

Performance Tests
3- 28
RSA3408B Analyzer Service Manual
Amplitude Checks
These procedures check the amplitude-related characteristics and are listed as
checked in Specifications of the RSA3408B Technical Reference.
Equipment
Required
One signal generator (Item 1)
One power meter (Item 7)
One power sensor (Item 8)
One 50
Ω
N-N coaxial cables (Item 11)
Prerequisites Refer to page 3--10.
1. Set up the power meter and sensor:
NOTE
. Store the power sensor correction factors in the power meter, if you have
not yet done so.
a.
Connect the power meter and the power sensor. See the following figure.
Sensor input
Power meter
Power sensor
b. Warm up the power meter and sensor for more than 20 minutes.
c. Press ZERO on the power meter.
d. Connect the RF input of the power sensor to the power reference output
of the power meter. See Figure 3--8 on page 3--29.
e. Turn on POWER REF and execute the calibration.
f. Disconnect the RF input of the power sensor from the reference output
of the power meter.
Check Absolute
Amplitude Accuracy