Fsk; Sweep - Rigol MSO5072 User Manual

RIGOL
Press Deviation, then rotate the multifunction knob
numeric keypad to set the frequency deviation of modulating waveform from the
carrier frequency. The available range of the frequency deviation is from 1 Hz to
the frequency of the current carrier waveform, and the sum of the frequency
deviation and carrier frequency cannot be greater than the maximum frequency
of the current carrier waveform.

FSK

FSK (Frequency-shift Keying) is a modulation method that uses the digital signal to
control the carrier frequency changes. It is one of the modulation methods that have
been early used in information transmission. Its advantages lie in good performance
in anti-noise and anti-attenuation, and it has been widely used in low and medium
rate of data transmission.
1. Set the Modulation Polarity
Press Polarity continuously to select "Positive" or "Negative" of the modulating
waveform to control the frequency output.
2. Set the Modulation Frequency
Press FSK Rate, then rotate the multifunction knob
numeric keypad to set the frequency of the modulation signal. The available
range is from 1 Hz to 50 kHz.
3. Set the Hopping Frequency
Hopping frequency indicates the frequency of the modulating waveform. The
range of the hopping frequency is from 100 mHz to the maximum frequency of
the carrier waveform. By default, it is 10 kHz. Press Hop Freq, then rotate the
multifunction knob
frequency.

Sweep

The built-in Function/Arbitrary Waveform Generator of MSO5000 series oscilloscope
supports the sweep function. In the sweep mode, the Function/Arbitrary Waveform
Generator outputs from the start frequency to the end frequency at a specified
sweep time.
MSO5000 series supports 3 sweep modes: Linear, Log, and Step. You are allowed to
set the parameters such as Start Keep, End Keep, and Return Time. Internal and
Manual trigger sources are supported. The sweep output is available for Sine, Square,
Ramp, and Arb (DC excluded) waveforms.
Press Settings → Type, and rotate the multifunction knob
and then press down the knob to select it. You can also press Type continuously or
17-16
Chapter 17 Function/Arbitrary Waveform Generator (Option)
or use the pop-up numeric keypad to set the hopping
or use the pop-up
or use the pop-up
to select "Sweep",
MSO5000 User Guide