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NTSpectrumChannel

Class of the data channel of the signal spectrum. It inherits from the base channel class NTBaseChannel.

Description

NTSpectrumChannel	Constructor. Creating a signal spectrum data channel. Creates a signal spectrum data channel. Parameters: *channel* Description: data channel Data type: NTBaseChannel *windowType* Description: type of window function for spectrum calculation Data type: ChannelInfo Return value: Description: Signal spectrum data channel Data type: NTSpectrumChannel.
readData	Function. Channel data request. Method that returns the requested amount of data. Parameters: *offset* Description: Offset from the start of the data Data type: UInt *length* Description: Required number of signal samples. Data type: UInt Return value: Description: array of requested reports Data type: [NSNumber].
hzPerSpectrumSample	Field. Spectrum calculation step *Data type.* Double
spectrumlength	Field. Window size for spectrum calculation *Data type.* Int