Performance Verification
7.
Set both the RF signal generator output frequency and the RSA5100B Center
Frequency to the first frequency in the RF Flatness table that follows. This is
the reference frequency. (See Table 72.)
8.
Select the
Peak
key on the Markers control bar to set the Reference Marker
(MR) to the carrier peak.
9.
Adjust the RF signal generator output level for a marker reading of –20
± 0.5 dBm.
10.
Record the Power Meter reading and the RSA5100B marker reading in the
following table.
11.
Set both the RF Generator output frequency and the RSA5100B center
frequency to the next frequency in the table.
12.
Select the
Peak
key on the Markers control bar to set the Reference Marker
(MR) to the carrier peak.
13.
Calculate the ΔPower Meter number: subtract the Power meter reading at
100 MHz from the Power Meter reading at this frequency.
14.
Calculate the ΔRTSA number: subtract the RTSA reading at 100 MHz from
the RTSA reading at this frequency.
15.
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.
16.
Repeat items 11 through 15 for each of the center frequencies shown in the
RF Flatness table up to the maximum bandwidth of the device-under-test.
(See Table 72.)
Table 72: RF Flatness (Preamp OFF)
Attenuator = 10 dB
Frequency
Power meter
reading
∆
Power meter
(vs. 100 MHz)
RTSA reading
∆
RTSA reading
(vs. 100 MHz)
RF
fl
atness
error
1
100 MHz
0
0
0
10 MHz
20 MHz
30 MHz
40 MHz
50 MHz
60 MHz
70 MHz
80 MHz
90 MHz
86
RSA5100B Series Technical Reference
