CB radio power output is limited by federal law, and CB radios come from the factory already adjusted for maximum allowed output. However, while thoughts of shrugging off the law might be tempting, there are also legal ways for increasing the range of your CB radio. Using a directional antenna – commonly known as a beam or a Yagi antenna – can also offer large improvements in reception and outgoing signal strength when it is pointed in the direction of the station you wish to contact, upwards of 8dBi over a vertical antenna. Keep in mind that this adds cost and complexity, as you need to rotate the antenna so that it points in the correct direction. Writer Bio
