| Write/Read | About Swept IMD | 
| Description | Sets and returns the frequency of the F2 tone. Use with IMD sweep types: 
 | 
| VB Syntax | object.F2Frequency = value | 
| Variable | (Type) - Description | 
| object | A SweptIMD or IMSpectrum Object | 
| value | (Double) F2 tone frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the VNA. | 
| Return Type | Double | 
| Default | 1.0005 GHz | 
| Examples | imd.F2Frequency = 200e9 'Write | 
| value = imd.F2Frequency 'Read | |
| C++ Syntax | HRESULT get_F2Frequency(double *pVal) | 
| Interface | ISweptIMD IIMSpectrum |