Custom Modulations (Flex Frame)

The Custom Modulation tab provides a list of custom modulations to be used when an allocation's Modulation is set to Custom Modulation.

When you click a custom modulation, the selected modulation's constellation is displayed in the Constellation Table to the right of the list of Custom Modulations.

Constellation Mapping

Import- Opens a dialog to import custom modulations with a .txt file type and Signal Studio Constellation File formatting.
Export- Exports the selected custom modulation to a .txt file with Signal Studio Constellation File formatting.

+ Add Custom Modulation Adds a new default (BPSK Binary phase shift keying - A type of phase modulation using 2 distinct carrier phases to signal ones and zeros.) custom modulation to the list of custom modulations.

Custom Modulations

Name- Editable name for each custom modulation. If the custom modulation is imported from a file, the filename is used as the custom modulation name. If the custom modulation is created using Add Custom Modulation, the default name is ModulationN.
Modulation Format- Constellation format used to interpret the custom modulation.
Remove Custom Modulation - Deletes a custom modulation from the list of custom modulations.

Constellation Table

Symbol- Symbol value for each state in the custom modulation's constellation.
Real- Value of the real part for each state in the custom modulation's constellation.
Imaginary- Value of the imaginary part for each state in the custom modulation's constellation.
Magnitude- Magnitude of each state in the custom modulation's constellation.
Phase- Phase of each state in the custom modulation's constellation.

Edit - When clicked, the parameters in the constellation table become editable, and several controls are added to customize the modulation. Any edited states must align with the selected modulation format, in order to create a constellation that is valid.

+ Add State- Adds a state to the constellation.
Modulation- Selects the constellation's modulation type.
Remove State - Deletes a state from the constellation.
Cancel- Cancels the edits made to the constellation.
Apply- Applies the edits to the constellation.

If the configured states are not valid for the selected modulation type, an "invalid state configuration" error will occur when the edits are applied.