I recently purchased a 102" SS whip from RS to use on a second base cb to receive only. After reading several forums about using this antenna for a TX/RX base antenna I decided to try. I installed the antenna on top of a 48" piece of pipe, mounted it to the side of the home and connected the coax to a Radio Shack TRC 447 radio. I grounded the pipe to the frame of the mobile home with 12 AWG wire. On the initial SWR check it was 3.0, not good! I kept reading more forums and found one about building in a ground plane using wire hanging directly under the whip antenna connected to the mount so I tried it. I took a piece of 14 ga wire about 112" long, one end I connected to the mount, the other end I let hang straight down, I folded about 8" around a plastic insulator and used a small diameter spring as a retainer to hold the wire fold together. On the second SWR check it was at 1.6/1.7,better. I will continue to tweak this setup, this is an easy solution to building in a ground plane using a 102" SS whip. Have fun trying this at home. This is my setup- RS TRC 447 CB barefoot @ 4w connected to 18' RG58 truck stop coax, a standard trucker antenna mirror mount with a 102" SS antenna on top, mounted to a piece of 48" 1.500 dia pipe about 16' in the air not including the antenna. Grounded the pipe to mobile home frame w/ 12AWG wire. So far good results, hope this works for you !!!