Chelegance KC4 Vertical HF 4-Band Antenna 40/20/15/10m 1kW

Summary

The Chelegance KC4 vertical antenna is an ideal solution for amateur radio operators seeking DX performance on the standard HF bands (40/20/15/10m) without the bulk of a beam or the complexity of a wire dipole. Designed for fixed-station installation, it stands out for its ability to operate without ground radials (thanks to the supplied elevated wire radials) and its 1 kW power handling capacity. It is an excellent choice for operators with limited space who do not wish to compromise on efficiency.

Key features

• Automatic switching: Switch between bands instantly without manual adjustment or an external tuner.
• 3/8-wave design: Uses a top-loaded vertical antenna for superior radiation efficiency compared to conventional shortened 1/4-wave verticals.
• Flexible installation: Designed for mounting at height (recommended at 1.5m above the ground), it overcomes the constraints of complex floor plans.
• Wide bandwidth: Offers ample coverage across each band (e.g. 150 kHz on 40 metres, 1,000 kHz on 10 metres) with a VSWR < 1.5:1.
• Robust construction: Aluminium alloy frame capable of withstanding winds of 35 m/s (approximately 126 km/h).

Technical specifications

• Frequency bands: 7, 14, 21, 28 MHz (40m, 20m, 15m, 10m)
• Antenna type: Resonant vertical (base station)
• Deployed height: 7.8 metres
• Weight: 6.8 kg
• Impedance: 50 ohms
• Connector: UHF female (SO-239)
• Maximum power (PEP): 1,000 watts
• Maximum power (CW): 200 watts
• Maximum power (FT8/Digi): 100 Watts
• SWR: < 1.5:1 at resonance
• Bandwidth (SWR < 1.5):
  • 40m: 150 kHz
  • 20m: 450 kHz
  • 15m: 800 kHz
  • 10m: 1000 kHz
• Main tube diameter: 41 mm (1.6 inches)
• Wind resistance: 35 m/s
• Recommended mounting height: 1.5 metres above ground level (for the feed point)

Compatibility

• Transceivers: Compatible with all HF transceivers (Icom, Yaesu, Kenwood, Xiegu, etc.) covering the 10–40 m bands.
• Transmission modes: Optimised for SSB, CW and digital modes (FT8, RTTY) whilst complying with power limits.
• Masts: Mounts on any standard support mast (diameter compatible with the supplied clamps) or sturdy tripod.
• Coaxial cable: Requires a 50-ohm cable with a PL-259 connector (not supplied).

FAQ

Why choose the Chelegance KC4?

• DX performance: Its low angle of radiation, typical of vertical antennas, favours long-distance (DX) contacts.
• Ease of use: Once installed, it’s ‘plug-and-play’ across the four major bands.
• Space-saving: Reduced footprint compared to horizontal antennas or verticals requiring buried radials.
• Build quality: Durable materials and precision machining for increased longevity in outdoor conditions.