Keysight N9038A Service Guide

692 Keysight N9038A MXE Service Guide
Tests
Frequency Response (Flatness)
7. Set up the receiver by pressing:
Mode Setup, EMC Standard, None
Input/Output, More, Freq Ref In, External
FREQ Channel, Center Freq, 50, MHz
SPAN X Scale, Span, 50, kHz
AMPTD Y Scale, Ref Level, 0, dBm
Single
8. Perform the following steps for each row listed in Table 22-17 that applies
to the frequency range of the instrument being tested:
a. Tune the receiver center frequency to the value listed in the Center
Frequency column of Table 22-17 by pressing FREQ Channel,
Center Freq, [Value].
b. Tune the signal generator frequency to the value listed in the Center
Frequency column of Table 22-17.
c. Enter the power sensor calibration factor into the power meter for
the signal generator frequency.
d. Adjust the signal generator output power for a power meter reading
of −10 dBm ± 0.1 dB.
e. Enter the power meter amplitude value into the Power Meter
Amplitude column of Table 22-17.
f. If the Center Frequency is greater than 3.6 GHz center the
preselector by pressing Cont, Peak Search, AMPTD X Scale, Presel
Center, then press Single on the receiver.
g. On the receiver, press Restart.
h. On the receiver press Peak Search to position the marker on the
peak of the signal.
i. Enter the receiver marker amplitude value into the Receiver
Amplitude column of Table 22-17.
j. Calculate the measurement error using the following equation, and
record the results under the Measurement Error column in Table
22-17:
Measurement Error = Meas_Amp
− Power_Meter
k. Calculate the frequency response error normalized to 50 MHz using
the following equation, and record the results under the Flatness
Normalized the 50 MHz column in Table 22-17:
Normalized to 50 MHz = Meas_Error − Meas_Error @ 50 MHz

Keysight N9038A Specifications

General

Brand	Keysight
Model	N9038A
Category	Measuring Instruments
Language	English