The GPA-80FHP is a high-power (1000W / 1kW) reinforced fibreglass (GRP) multiband vertical antenna engineered to provide a cost-effective, compact, and efficient solution for operating across HF frequencies and 50 MHz (from 80m to 6m). Offering plug-and-play functionality, it features an integrated Unun impedance matching unit at the base, delivering excellent VSWR levels of less than 1.5:1 across all bands when used with an external antenna tuner (ATU).
With an overall length of 6 metres and a continuous reception frequency range spanning from 2.0 to 90 MHz, this high-performance fibreglass version combines lightweight construction, visual discretion, and outstanding mechanical resilience against wind and environmental corrosion. It eliminates the need for complex, tuned radial ground planes, making it an ideal choice for base stations with restricted space on rooftops, balconies, or gardens. It incorporates a standard SO-239 (UHF female) connector at the base and includes mounting hardware compatible with mast diameters ranging from 25 to 42 mm.
Key Advantages
- High Power Handling Capacity (1000W / 1kW): Reinforced version capable of supporting high-power transmissions with linear amplifiers without overheating the base transformer.
- Continuous Multiband Coverage (80m to 6m): Allows operation across all amateur radio bands from 3.5 MHz up to 50 MHz using a single coaxial feed line.
- Broadband Reception Range (2.0 to 90 MHz): Excellent performance as a general-coverage receiving antenna for shortwave listeners (SWL), utility signals, and low VHF.
- Integrated Unun Matching: Base equipped with an impedance transformation unit that facilitates quick tuning (VSWR < 1.5:1) via an external antenna tuner.
- 6-Metre GRP Fibreglass Construction: Tubular sections resistant to UV radiation, salinity, and harsh weather conditions with zero regular maintenance required.
Recommended Applications
Urban Base Stations with Space Limitations
A discreet vertical footprint solution for apartment rooftops, spacious balconies, or courtyards where deploying long 40m or 80m dipoles is unfeasible.
High-Power and DX Operators
Designed for radio amateurs utilizing linear power amplifiers up to 1 kW who require quick band-switching agility supported by an automatic or manual antenna tuner.
Shortwave Listening (SWL) and Monitoring Stations
Uninterrupted coverage from 2 to 90 MHz ideal for communications receivers, SDRs, and spectrum analyzers.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | GPA-80FHP (1kW Fibreglass Version) |
| Antenna Type | Fibreglass Vertical with Unun matched base |
| Transmit Frequency Bands (TX) | 80m to 6m (HF + 50 MHz) |
| Receive Frequency Range (RX) | 2.0 to 90 MHz |
| Maximum Power Handling Capacity | 1000 Watts |
| Nominal Impedance | 50 Ohms |
| VSWR | Less than 1.5:1 across all bands (with external ATU) |
| Base Connection | SO-239 (UHF Female) |
| Total Length | 6 metres |
| Compatible Mast Diameter | 25 to 42 mm |
Key Highlights
- Wideband vertical antenna design free of mechanical tuning traps.
- Radiating sections encased in weather-resistant GRP fibreglass tubing.
- Supports up to 1000 Watts of maximum power handling.
- Easy installation on standard 25 to 42 mm masts using supplied clamps.
- Maintains excellent standing wave ratios when operated alongside an external tuner or transceiver ATU.
Package Contents
- 1x GPA-80FHP Fibreglass Vertical Antenna (telescopic sections up to 6m) with Unun SO-239 base.
- 1x Set of mounting hardware and mast clamps (25 to 42 mm).
Frequently Asked Questions
Do I need an antenna tuner (ATU) to transmit with the GPA-80FHP?
While its internal Unun transformer brings the impedance close to 50 Ohms across a wide spectrum, achieving a VSWR level of less than 1.5:1 across all bands from 80m to 6m and protecting your transmitter’s final stage requires using an external antenna tuner or your transceiver’s built-in tuner.
Do I need to install tuned radials for each band?
No resonant radials cut for individual bands are required, which greatly simplifies installation in confined spaces. A solid connection to a grounded metal mast is sufficient for optimal performance.
