On Wed, Sep 22, 2010 at 9:18 AM, John Browning wrote: > I'll experiment some more tonight. It was set at .25 deg increments 100deg > scan angle at 500,000bps. the tutorial has a setting of .5 and 180 deg and > 38,400bps i'll try that see if it clears up. The baud rate shouldn't make a difference. But the angular resolution might. That device naturally samples in 1-degree increments. To get higher resolution, it takes multiple scans, offset from each other, and interlaces them. Perhaps the driver is doing something wrong with interlaced scans. brian.