Antenna tips.

Wherever possible, a CB antenna should be mounted as high as possible, above television and radio antenna. Also, it should be noted that TV antennas are directional - placing a CB antenna behind a TV antenna, rather than in front, may help to reduce the amount of signal getting to the TV.

Make sure that all your connections are fine. This includes plugs, sockets, and connections between any sections of your antenna. Any poor connections will not only reduce distance, but may also lead to interference.

Poor tuning of the antenna can cause the coax to radiate signal, which will be lower to the ground and closer to other equipment. It is in your favour to make sure that as much of your signal as possible is sent out at the antenna.