Comet GP-3N Dual Band 2m & 70cm Ham Base Antenna, 4.5dBi / 7.2dBi Gain, 200W SSB, 144/430MHz

The Comet GP-3N is a premium, dual-band fibreglass base station antenna for 2-metre (144 MHz) and 70cm (430 MHz) amateur radio use. With a gain of 4.5 dBi on 2m and 7.2 dBi on 70cm, and a maximum power rating of 200W SSB / 100W FM, it delivers excellent omnidirectional performance across both bands from a single antenna. The N-type connector ensures low-loss, weatherproof connectivity. A standout design feature is the unique split-thread lock bolt that compresses when installed to prevent loosening — keeping your antenna secure even in high winds. The mounting tube doubles as a cable protector, shielding the feedline from the elements. Mounts on masts of 30–60mm diameter.

Key Features

• Dual band: 2m (144 MHz) & 70cm (430 MHz)
• Gain: 4.5 dBi (2m) / 7.2 dBi (70cm)
• Max power: 200W SSB / 100W FM
• VSWR: ≤1.5:1
• N-type connector for low-loss, weatherproof connection
• Unique split-thread lock bolt — prevents loosening in high winds
• Mounting tube acts as cable protector against weather
• Rugged fibreglass construction
• Mast diameter: 30–60mm
• Length: 157cm
• Made by Comet (Japan)

Technical Specifications

• Type: Dual band fibreglass base antenna
• Frequency: 144 MHz (2m) & 430 MHz (70cm)
• Gain: 4.5 dBi (2m) / 7.2 dBi (70cm)
• VSWR: ≤1.5:1
• Max power: 200W SSB / 100W FM
• Connector: N-type
• Length: 157cm
• Mast diameter: 30–60mm