Tektronix RSA3408A, Technical Reference, Page: 40 / 86

Performance Tests
1- 26
RSA3408A Technical Reference
5. Modify the analyzer controls:
a. Press the AMPLITUDE key on the front panel.
b. With the Ref Level side key, set the reference level to 0 dBm using the
general purpose knob.
c. Make sure that RF Att is set to 30 dB.
6. Measure the reference amplitude at 30 dB attenuation:
a. Press the PEAK key on the front panel to place the marker on the peak.
b. Record the peak amplitude at the marker readout as the reference value.
(Let the value be P
1.
)
7. Check the amplitude for attenuation from 35 to 55 dB:
a. Press the RF Att side key and set the attenuation (initially 35 dB).
b. Press the PEAK key on the front panel to place the marker on the peak.
c. Record the peak amplitude at the marker readout. (Let the value be P
X
.)
d.
Check that the error (P
X
-- P
1
) is within

0.2 dB.
e.
Repeat substeps a through d for attenuation from 35 to 55 dB in 5 dB
steps.
8. Disconnect the test equipment:
Disconnect the cable at the analyzer input.