Diamond X-300 Dual Band 2m & 70cm Base Antenna 6.5/9dBi Gain, 200W, 3.1m, Pre-Tuned

The Diamond X-300 is a premium high-gain dual-band fibreglass base station antenna for 2-metre (144 MHz) and 70cm (430 MHz) amateur radio use — the big brother to the popular X-200N, delivering even greater gain from a longer 3.1m collinear design. With 6.5 dBi gain on 2m and an impressive 9 dBi on 70cm, the X-300 is one of the highest-gain dual-band base antennas in the Diamond range, making it the ideal choice for operators who want maximum range and signal strength on both bands from a fixed station. The 2 x 5/8-wave (2m) and 5 x 5/8-wave (70cm) collinear design provides excellent omnidirectional coverage. Pre-tuned and fully weatherproofed fibreglass construction. 200W power handling. 52cm radials. Mounts on masts of 30–62mm diameter. Wind rated to 50 m/s.

Key Features

• Dual band: 2m (144 MHz) & 70cm (430 MHz)
• Gain: 6.5 dBi (2m) / 9 dBi (70cm)
• 200W power handling
• 2 x 5/8-wave (2m) / 5 x 5/8-wave (70cm) collinear design
• Pre-tuned — no adjustment required
• Fully weatherproofed fibreglass construction
• SO-239 (UHF-Female) connector
• Radial length: 52cm
• Mast diameter: 30–62mm
• Wind rating: 50 m/s
• Length: 3.1m | Weight: 1.5kg
• Made by Diamond Antenna (Japan)

Technical Specifications

• Type: Dual band fibreglass collinear base antenna
• Frequency: 144 MHz (2m) & 430 MHz (70cm)
• Gain: 6.5 dBi (2m) / 9 dBi (70cm)
• Design: 2 x 5/8-wave (2m) / 5 x 5/8-wave (70cm)
• Max power: 200W
• Connector: SO-239 (UHF-Female)
• Radial length: 52cm
• Length: 3.1m
• Weight: 1.5kg
• Mast diameter: 30–62mm
• Wind rating: 50 m/s
• Country of origin: Japan