| Write/Read | About Sweeping | 
| Description | Sets sweeps to either alternate or chopped. | 
| VB Syntax | object.AlternateSweep = value | 
| Variable | (Type) - Description | 
| object | Channel (object) or CalSet (object) - Read-only property | 
| value | (boolean) - Choose either: False - Sweep mode set to Chopped - reflection and transmission are measured on the same sweep. True - Sweep mode set to Alternate - reflection and transmission measured on separate sweeps. Improves Mixer bounce and Isolation measurements. Increases cycle time. | 
| Return Type | boolean | 
| Default | False (0) | 
| Examples | chan.AlternateSweep = True 'Write | 
| altSwp = chan.AlternateSweep 'Read | |
| C++ Syntax | HRESULT AlternateSweep(VARIANT_BOOL *pVal) | 
| Interface | IChannel ICalSet3 |