Specifies the modulation type.
| Constant | Value | Description | 
| BDA_MOD_NOT_SET | -1 | Modulation not set. | 
| BDA_MOD_NOT_DEFINED | 0 | Modulation not defined. | 
| BDA_MOD_16QAM | 1 | 16 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_32QAM | 2 | 32 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_64QAM | 3 | 64 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_80QAM | 4 | 80 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_96QAM | 5 | 96 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_112QAM | 6 | 112 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_128QAM | 7 | 128 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_160QAM | 8 | 160 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_192QAM | 9 | 192 symbol Quadrature Amplitude Modulation | 
| BDA_MOD_224QAM | 10 | 224 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_256QAM | 11 | 256 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_320QAM | 12 | 320 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_384QAM | 13 | 384 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_448QAM | 14 | 448 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_512QAM | 15 | 512 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_640QAM | 16 | 640 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_768QAM | 17 | 768 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_896QAM | 18 | 896 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_1024QAM | 19 | 1024 symbol Quadrature Amplitude Modulation. | 
| BDA_MOD_QPSK | 20 | Quadrature Phase-Shift Keying modulation. | 
| BDA_MOD_BPSK | 21 | Binary Phase Shift Keying modulation. | 
| BDA_MOD_OQPSK | 22 | Offset Quadrature Phase-Shift Keying modulation. | 
| BDA_MOD_8VSB | 23 | 8 Vestigial Side-Band modulation. | 
| BDA_MOD_16VSB | 24 | 16 Vestigial Side-Band modulation. | 
| BDA_MOD_ANALOG_AMPLITUDE | 25 | Analog Amplitude modulation. | 
| BDA_MOD_ANALOG_FREQUENCY | 26 | Analog Frequency modulation. | 
| BDA_MOD_MAX | 27 | Maximum Modulation. |