The Sharman X-30 is a dual-band VHF/UHF base station antenna covering 144 MHz (2m) and 430 MHz (70cm) — a popular and practical choice for amateur radio operators wanting a single antenna for both bands. Delivering 3.0 dBi gain on 2m and 6 dBi on 70cm, it provides a meaningful improvement over a simple dipole on both bands, particularly on UHF.Constructed from fibreglass and stainless steel for durability in permanent outdoor installations. Supplied complete with U-bolt mast clamps for side mounting on masts from 30–60mm in diameter.Key Features Dual band: 144 MHz (2m) and 430 MHz (70cm) Gain: 3.0 dBi (VHF) | 6 dBi (UHF) Max power: 150W Connector: SO-239 Length: 1.1m + 20cm mounting pole Construction: fibreglass and stainless steel Supplied with U-bolt mast clamps for 30–60mm masts Technical Specifications Frequency: 144 MHz / 430 MHz Gain: 3.0 dBi (2m) / 6 dBi (70cm) Max power: 150W Connector: SO-239 Length: 1.1m + 20cm mounting pole Mast diameter: 30–60mm Material: fibreglass, stainless steel