Manual for this unit is at https://cdn.shopify.com/s/files/1/0019/5952/files/Manual-RAD-0301.pdf?v=1653610356 https://cdn.shopify.com/s/files/1/0019/5952/files/

Manual for this unit is at https://cdn.shopify.com/s/files/1/0019/5952/files/Manual-RAD-0301.pdf?v=1653610356 https://cdn.shopify.com/s/files/1/0019/5952/files/Manual-RAD... I assume 'dual-beam' is the same as dual-channel? Does the calibration technique mentioned in the manual indicate dual channel operation?