HolyBro High Precision RTK GNSS Antenna

The Holybro CHX603A is a high-precision multi-band RTK GNSS antenna engineered for commercial platforms, heavy-lift cinelifters, and agricultural UAVs requiring centimetre-level positioning accuracy. Utilising a lightweight quadrifilar helix design, it delivers robust signal tracking and high gain across four major satellite constellations, ensuring reliable lock even at low elevation angles or in multipath-heavy environments.

Key features

• Enables centimetre-level RTK positioning for surveying, mapping, and autonomous precision flights.
• Broad 4-band multi-frequency support across GPS, GLONASS, Galileo, and BeiDou networks.
• Advanced quadrifilar helix element mitigates multipath interference and maintains stable low-elevation reception.
• Housed in a rugged, weather-resistant shell with a standard SMA male connector for straightforward integration.

Specifications

• Model: CHX603A (4-Band)
• Antenna type: Quadrifilar Helix
• Supported constellations: GPS (L1/L2), GLONASS (G1/G2), Galileo (E1/E5b), BeiDou (B1/B2/B3)
• Connector: SMA Male
• Ingress protection: IP67
• Dimensions: 27.5 x 59 mm
• Weight: 24 g

This antenna serves as an excellent primary unit for RTK rover builds, pairing perfectly with high-end multi-band receivers like the Holybro H-RTK F9P series or Unicore UM982 systems.