Keysight Technologies N5171B EXG, Руководство пользователя

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414 Keysight EXG and MXG X-Series Signal Generators User’s Guide
Multitone and Two-Tone Waveforms (Option 430)
Using Two–Tone Modulation
Creating a Two–Tone Waveform
This procedure describes how to create a basic, centered, two–tone waveform.
1. Preset the signal generator.
2. Set the signal generator RF output frequency to 6 GHz.
3. Set the signal generator RF output amplitude to –10 dBm.
4. Press Mode > More > Two–Tone > Freq Separation > 10 > MHz .
5. Press Two Tone Off On to On .
6. Turn on the RF output.
The two–tone signal is now available at the signal generator RF OUTPUT connector. Figure 17-1 on
page 414 shows what the signal generator display should look like after all steps have been
completed. Notice that the
T-TONE
,
I/Q
, annunciators are displayed; the
RF ON
,
MOD ON
are on;
and the parameter settings for the signal are shown in the status area of the signal generator
display.
Figure 17-1
Viewing a Two–Tone Waveform
This procedure describes how to configure the spectrum analyzer to view a two–tone waveform and
its IMD products. Actual key presses will vary, depending on the model of spectrum analyzer you
are using.
1. Preset the spectrum analyzer.
2. Set the carrier frequency to 6 GHz.
3. Set the frequency span to 60 MHz.
4. Set the amplitude for a 10 dB scale with a –10 dBm reference.
5. Adjust the resolution bandwidth to sufficiently reduce the noise floor to expose the IMD
products. A 9.1 kHz setting was used in our example.
6. Turn on the peak detector.
Mode > Two–Tone
For details on
each key, use
key help as
described on
page 40
.