| Write/Read | About IM Spectrum | 
| Description | Sets and returns the Resolution Bandwidth for the IM Spectrum measurement. | 
| VB Syntax | ims.ResolutionBW = value | 
| Variable | (Type) - Description | 
| ims | An IMSpectrum Object | 
| value | (Double) Resolution BW in Hz. Choose from: 60k | 100k | 150k | 300k, 600k | 1.0M | 3.0M If an invalid number is specified, the VNA will round up to the closest valid number. | 
| Return Type | Double | 
| Default | 600 kHz | 
| Examples | ims.ResolutionBW = 150e3 'Write | 
| value = ims.ResolutionBW 'Read | |
| C++ Syntax | HRESULT get_ResolutionBW(double *pVal) | 
| Interface | IIMSpectrum |