Dear all: Environment: Roof of FIC headquarter Time:5/2 19:20 GTA02(15*15 Patch Ant with U-blox4): Top 4 satellite CN AVG:45 ETEN X650(13*13 Patch Ant with Sirf StarIII): Top 4 satellite CN AVG:45 GSMART MS800(Ceramic PIFA Patch Ant with Sirf StarIII): Top 4 satellite CN AVG:43 The following report would be attached late. Best regard,Shawn