In this paper, we analyzed the reach performance of the FLC-C VDSL system using 4-CAP modulation scheme. We measured the attenuation of VDSL lines and their noise characteristics, and calculated the channel capacity. And then, we evaluated the VDSL coverage fro each type of cables; CPEV 0.5mm, CPEV 0.65mm, UTP3 0.5mm, UTP5 0.5mm, FS 0.4mm, FS 0.5mm. In case that FLC-C VDSL modern transmits 25.92 Mbps data over a UTP5 0.5mm cable, the VDSL reach appears to be about 570mm.