With 465mm length and 2.1dBi gain, suits the AS004B base assembly. Is the GME AW4704BB Antenna Whip Right for me? Alongside considerations of Installation requirements, you need to consider the Gain Rating of your Antenna and how it will impact your use. The GME AW4704BB Antenna Whip is a unity gain (2.1dBi) that outputs a signal at the same level at which it is input. The broad distribution pattern of unity gain antennas is less likely to be obstructed by buildings, bushland and hilly terrain. Therefore, a unity gain antenna is the best choice for a rugged and mountainous country. GME - The Company GME was established over 50 years ago with the intention of designing and manufacturing world-class radio and communication equipment within Australia. GME products fall under the umbrella of Standard Communications Pty. Ltd. and proudly remain a privately owned Australian company. Their radio products are of the most reliable quality and have been depended upon by the Australian rural community and State Emergency Services. Browse all UHF antennas.