Last Modified: January 9, 2017

Calculates parameters for use with either MT Modulate QAM or MT Demodulate QAM. The node accepts an *M*-ary value that specifies a predefined symbol map with the number of distinct symbol map values to use as symbols.

The *M*-ary number, which is the number of distinct states that represent symbols in the complex baseband modulated waveform. This value must be a positive power of 2 and must be less than 256.

**Default: **16

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

**Default: **no error

Parameter values defining the QAM system. Wire this cluster to the corresponding **system parameters** cluster of MT Modulate QAM or MT Demodulate QAM.

Number of samples per symbol in the modulated output complex waveform. For error-free operation, the **samples per symbol** must be an even number.

An ordered array that maps each symbol value to its desired coordinates in the complex plane. The number of QAM states in the array must be 2^{ N }, where *N* is the number of bits per symbol. The length of the vector for the symbols farthest from the origin must be 1.

Number of bits represented by each symbol. This value is equal to Log_{ 2 }(*M*), where *M* is the order of the modulation (for example, for 16-QAM, *M* = 16).

**Where This Node Can Run: **

Desktop OS: Windows

FPGA: Not supported