Ground Independent UHF 477MHz 6 & 9dB Antenna kit. Includes pre-terminated base and lead. Optimised for long-range performance

Choose from 6 or 9db Gain antenna modes
Fold Down Adapter
Antenna is removable from base
Ground Independent
Supplied with 3.6m Coax Cable & Connector
May be mounted on bullbars, gutter or fender mounts 

In order for your phone or radio to work, the antenna has to focus your signal just where you need it - in much the same way as a flashlight. 

The gain of an antenna, shown in decibels, describes just how tightly focussed the signals will be. Some antennas can produce a “spotlight”, focussing on a narrow target but covering large distances. 

Others produce a broad coverage area like a lantern. Generally, the higher the decibels of gain the better the range. 

Higher gain is better for distance over flat terrain, lower gain for undulating ground or hilly terrain