Jim, It's the dB grease that is used during assembly. =!8^} >It's hard to believe that such an exact copy could have 2 dB more gain. >>73, Jim K9YC --- Ciao baby, catch you on the flip side 73 de W3AB/GEO WA2LSI, KE6RJW, W7B, AAR9AG http://www.w3ab.org You can say "over", you can say "out", you just can't say "over and out".