FSK Deviation Reference (Digital Demod)

Menu Path: MeasSetup > Digital Demod Properties > Format tab

The FSK Deviation Reference parameter sets frequency deviation of the reference signal for FSK Frequency Shift Keying: A form of modulation using multiple carrier frequencies to carry the digital information. The most common is the two frequency FSK system using the two frequencies to carry the binary ones and zeros. modulations.

There are two possible FSK Deviation Reference modes:

• Manual (default, Wi-SUN Preset to Standard selections): This selection enables the user to manually set the deviation reference. When a Preset to Standard selection that uses an FSK modulation format is selected (or APCO-25 P2 (HCPM) with CPM Continuous Phase Modulation (FM Frequency Modulation) modulation format), the Manual field is populated with a deviation that is calculated using the format's data rate and modulation index. See Using Standard Setups/Presets for a list of standard presets.
• Automatic(default, all other FSK format selections and APCO-25 P2 (HCPM)): This selection uses an average measured frequency deviation as described in Deviation (Digital Demod).

See Also      

Format Tab (Digital Demod)