Keysight N9038A, Service Manual, Page: 680 / 745

Keysight N9038A MXE Service Guide 699
Tests
Frequency Response (Flatness) - Preamp On
j. Calculate the frequency response error normalized to 50 MHz using
the following equation, and record the results under the Normalized
to 50 MHz column in Table 22-20 :
Normalized to 50 MHz = Meas_Error − Meas_Error @ 50 MHz
Table 22-20 Frequency Response Results - Preamp On - RF Input 1
Center
Frequency
Receiver
Amplitude
(dBm)
Meas_Amp
Power Meter
Amplitude
(dBm)
Power_Meter
Measurement
Error
(dB)
Meas_Error
Normalized
to 50 MHz
(dB)
Normalized
Test Limit
(dB)
50 MHz 0 Ref
1.0 GHz ± 2.0 dB
2.0 GHz ± 2.0 dB
3.0 GHz ± 2.0 dB
4.0 GHz ± 3.0 dB
6.0 GHz ± 3.0 dB
8.0 GHz ± 3.0 dB
9.0 GHz ± 3.0 dB
11 GHz ± 3.0 dB
13 GHz ± 3.0 dB
14 GHz ± 3.0 dB
17 GHz ± 3.0 dB
20 GHz ± 3.5 dB
23 GHz ± 3.5 dB
26 GHz ± 3.5 dB
29 GHz ± 4.0 dB
32 GHz ± 4.0 dB
35 GHz ± 4.0 dB
38 GHz ± 5.5 dB
41 GHz ± 5.5 dB
44 GHz ± 5.5 dB