VideoLink WHA-4572-15-1 Helical Antenna

We offer the compact wideband helical antenna VideoLink WHA-4572-15-1 from the manufacturer VideoLink. This lightweight and durable device is designed to operate in the 4.5-7.2 GHz frequency range and is optimized for mounting on repeaters, antenna masts, and other platforms where weight and size are critical without compromising communication quality. Thanks to its helical design, the antenna provides circular polarization with selectable RHCP or LHCP, which enhances reception stability in challenging conditions and minimizes cross-polarization interference.

The antenna features a wide operating band of 4.5–7.2 GHz and provides gain from 11.5 dBi at 4.5 GHz to 15.5 dBi at 7.2 GHz, making it suitable for both short- and long-range links. The beamwidth is within 25–45 degrees, allowing for a combination of directivity and coverage for video signal relay and data transmission.

Technical Specifications

• Frequency Range: 4.5-7.2 GHz
• Gain: 11.5 dBi (4.5 GHz) to 15.5 dBi (7.2 GHz)
• Beamwidth: 25-45 degrees
• Number of Turns: 17
• Polarization: RHCP or LHCP
• SWR: ≤ 2
• Connector: SMA
• Dimensions: 64x64x180 mm
• Weight: 48 g

Its low weight of 48 g and compact dimensions of 64x64x180 mm make installation simple and negligible for supporting structures. Appropriate feeder cables and sealed adapters are recommended for long-term outdoor use. The design is durable, and the helical geometry is optimized for a stable standing wave ratio (SWR ≤ 2) across the entire operating range, contributing to efficient energy transfer and reduced reflections.

With gain up to 15.5 dBi, the antenna is perfectly suited for long-range communication tasks, video signal relay, unmanned systems, professional data transmission systems, and other applications in the 4.5–7.2 GHz range. Variable RHCP/LHCP polarization provides flexibility for integration into existing systems and helps solve multiplexing and signal rotation issues.

Installation and connection are straightforward: the standard SMA connector ensures compatibility with most cables and adapters for high-frequency connections. Product type: Antennas > Circular Antennas > Helical Antenna. Catalog model: VideoLink 4.5-7.2 GHz VideoLink WHA-4572-15-1 Helical Antenna.

Other products in this category here Helical Antenna