Table 69: If Flatness - Tektronix RSA6100A Technical Reference

Performance Verification

Table 69: IF Flatness

Generator Power meter
Frequency reading
Span = 300 kHz
200 MHz
199.85 MHz
199.88 MHz
199.91 MHz
199.94 MHz
199.97 MHz
200.03 MHz
200.06 MHz
200.09 MHz
200.12 MHz
200.15 MHz
Span = 10 MHz
200 MHz
195 MHz
196 MHz
197 MHz
198 MHz
84
10. Record the Power Meter reading and the RSA6100A reading in the following
table.
11. Calculate the Δ Power Meter number: subtract the Power Meter reading at
200 MHz from the Power Meter reading at this frequency.
12. Calculate the Δ RTSA number: subtract the RSA6100A reading at 200 MHz
from the RSA6100A reading at this frequency.
13. Calculate the IF Flatness Error using the formula:
RF Flatness Error = Δ RTSA at this freq - Δ Power Meter at this freq
Readings are in dBm, error is in dB.
14. Repeat parts 8 through 13 for each of the remaining generator frequencies
shown in the Span = 300 kHz portion of the following table.
15. Record the highest Calculated IF Flatness Error for the Span setting into the
test record. (Limits are shown in the test record.)
16. Repeat this process for Span settings of 10 MHz, 20 MHz, and 40 MHz, using
the appropriate span segment of the following table.
17. (Option 110 only.) Repeat this process for a 110 MHz Span setting.
Δ Power meter
(vs. 200 MHz)
0
0
Δ RTSA reading
RTSA reading (vs. 200 MHz)
0
0
RSA6100A Series Technical Reference
Calculated IF
Flatness Error
0
0