by weighing before and after scanning then drying and weighing after the scanning was completed the scans covered the ranges from 2 to 4 ghz and 8 to 18 ghz the scan radiofrequency rf modes included linear polarized co polarized and cross polarized configurations the linear scans were either polarization aligned with the grain direction u201c aligned u201d or polarization perpendicular to the grain direction u201c cross u201d co polarized scans were designated right right u201c rr u201d and cross polarized as u201c lr u201d the lowest frequency data set in each scan was used to create a mask defining the location of each coupon in the scan the masks were used to create for each scan a text file containing the average amplitude of each coupon for each frequency for each rf mode the text files were imported into a spreadsheet the data was normalized to the average reflected amplitude from the metal plate for the respective set the normalized data were used to create plots of average amplitude y axis as a function of moisture content x axis overall the plots show an increase in reflectivity with moisture content up to a certain level this level and behavior above that level depend on.