GEPRC SOMA 3.3G 17dBi Directional Patch Antenna

The GEPRC SOMA 3.3G is a high-gain RHCP flat-panel antenna for the ground end of a 3.3GHz long-range video link, mounted on a tripod or ground-station bracket and aimed at the flying area. A dual-layer PCB RF design keeps VSWR low, and every unit is checked on a spectrum analyser before it ships.

Key features

• Covers 3.0–3.5GHz around a 3.3GHz centre frequency
• VSWR of 1.47 or lower and 86% radiation efficiency
• Slim 20 mm-thick injection-moulded ABS housing
• 1/4-inch aluminium base fits standard tripods and brackets
• SMA connector

Specifications

• Centre frequency: 3.3GHz (3.0–3.5GHz)
• Polarisation: RHCP
• Gain: 17 dBi
• Axial ratio: 3 or lower
• VSWR: 1.47 or lower
• Radiation efficiency: 86%
• Cross-polarisation suppression: -25 dB
• Size: 203.5 x 203.5 x 20 mm
• Weight: 293 g
• Housing: ABS
• Connector: SMA

Pair it with an RHCP antenna on the aircraft, such as GEPRC's matching SOMA 3.3G antenna. It works on 3.3GHz only, not 5.8GHz or 2.4GHz, and as a directional antenna it needs pointing towards the aircraft. Check local regulations before using 3.3GHz video.