| Write/Read | About SA Application | 
| Description | Set and read the Frequency Span / RBW ratio. | 
| VB Syntax | sa.SpanResolutionBWRatio = value | 
| Variable | (Type) - Description | 
| sa | A SpectrumAnalyzer (object) | 
| value | (Double) Frequency Span / RBW ratio. Choose a value between 1 and 200e9. | 
| Return Type | Double | 
| Default | 106 | 
| Examples | sa.SpanResolutionBWRatio = 100 Write | 
| value = sa.SpanResolutionBWRatio 'Read | |
| C++ Syntax | HRESULT put_SpanResolutionBWRatio(double ratio); HRESULT get_SpanResolutionBWRatio(double* ratio); | 
| Interface | ISpectrumAnalyzer |