Table 65: Rf Flatness (Preamp Off, If Installed) - Tektronix RSA6100A Technical Reference

Table 65: RF Flatness (Preamp OFF, if installed)

Attenuator = 10 dB
Power meter
Frequency reading
100 MHz
10 MHz
20 MHz
30 MHz
40 MHz
50 MHz
60 MHz
70 MHz
80 MHz
90 MHz
200 MHz
300 MHz
400 MHz
RSA6100A Series Technical Reference
8. Set both the RF generator output frequency and the RSA6100A Center
Frequency to 100 MHz. This is the reference frequency.
9. Select the Markers button, and then select the Peak soft key to set the
Reference Marker (MR) to the carrier peak.
10. Record the Power Meter reading and the RSA6100A reading in the following
table.
11. Set both the RF generator output frequency and the RSA6100A Center
Frequency to 10 MHz.
12. Select the Peak soft key to set the Reference Marker (MR) to the carrier peak.
13. Record the Power Meter reading and the RSA6100A reading in the following
table.
14. Calculate the Δ Power Meter number: subtract the Power Meter reading at
100 MHz from the Power Meter reading at this frequency.
15. Calculate the Δ RTSA number: subtract the RTSA reading at 100 MHz from
the RTSA reading at this frequency.
16. Calculate the RF Flatness Error:
RF Flatness Error = Δ RTSA at this freq - Δ Power Meter at this freq
Readings are in dBm, error is in dB.
17. Repeat parts 11 through 13 for each of the center frequencies shown in the
following table.
∆ Power meter
(vs. 100 MHz)
0
∆ RTSA reading
RTSA reading (vs. 100 MHz)
0
Performance Verification
RF flatness
1
error
0
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