Instructions
Table Of Contents
- 1.General Safety Requirement
- 2.Safety Terms and Symbols
- 3.Quick start
- 4.Panel Operation
- Channel Setting
- Waveform Setting
- Output the modulated waves
- Hexadecimal frequency shift keying (3FSK)
- Quaternary frequency shift keying (4FSK)
- Binary phase shift keying (BPSK)
- Oscillating keying (OSK)
- Output the sweep frequency (Sweep)
- Output the burst (Burst)
- Counter
- Utility function setting
- Edit the Arbitrary Wave (Edit)
- File system (Store)
- Save/recall instrument settings (Preset)
- Use build-in help (Help)
- 5.Communicate with PC
- 6.Troubleshooting
- 7.Specification
- 8.Appendix
4
.
Panel Operation
29
Glossary
AM frequency: the frequency of the modulation waveform.
Modulation Depth:The range of amplitude variations of the output modulation
waveform. At 0% modulation, the output amplitude is half of the set amplitude. At
100% modulation, the output amplitude is equal to the specified value. For external
sources, the AM depth is controlled by the signal level on the Ext Mod In connector.
+1 V corresponds to the currently selected depth of 100%.
Frequency Modulation (FM)
The output modulation waveform consists of a carrier wave and a modulated wave.
The carrier wave can be a sine wave, a square wave, a ramp wave, or an arbitrary
wave. In frequency modulation, the frequency of the carrier varies with the
instantaneous voltage of the modulation waveform. The user interface for frequency
modulation is shown below.
Figure 4- 12: frequency modulation user interface
Steps to set the frequency modulation
(1) After pressing the Mod function key, press the Modulation type soft key, select
the knob to select, the modulation type is FM, press the OK soft key.
(2) Press to display the waveform and parameters of the current carrier. You