Professional High-Power Wideband HF Base Station Radiating Infrastructure
The Moonraker GPA-80 is a commercial-grade vertical HF base station antenna system engineered to deliver broad-spectrum operational flexibility and robust short-to-long-range signal propagation across the high-frequency bands. Measuring an impressive 6 meters in approximate total length, this durable omnidirectional vertical radiator provides comprehensive wideband transmission coverage from the 80-meter down to the 6-meter amateur bands (3.5 to 57 MHz) when deployed alongside an external Antenna Tuning Unit (ATU). For broad-spectrum monitoring and signal interception, it functions as an exceptional wideband receiving asset across an extended 2.0 to 90 MHz frequency window. It serves as an immediate, high-rotation procurement asset for commercial base station installations, emergency communications infrastructure, maritime monitoring outposts, and high-volume B2B radiocommunication accessory wholesale distribution channels across European markets.
The mechanical and electrical framework is engineered to sustain heavy duty cycles under high RF energy loads, safely handling a maximum power rating of 400W. Designed for standard 50 Ohms impedance matching networks, the base sections terminate in a heavy-duty, precision-machined SO239 (UHF Female) mechanical connector jack to accept low-loss transmission lines. The antenna can achieve an excellent Voltage Standing Wave Ratio (VSWR) metric of 1.5:1 or better across its tuning range when supported by a dedicated ATU. For versatile deployment scenarios, its native, non-tuned VSWR curve yields stable matching depending on specific installation constraints, making it a highly reliable and versatile asset to preserve absolute base network operational readiness.
Technical Specifications Matrix
| Technical Specification Parameter | Value & Base Fleet Alignment |
|---|---|
| Product Brand Line | Moonraker Antennas |
| Hardware Model Designation | GPA-80 |
| Primary Component Classification | HF Broadband Vertical Base Station Antenna |
| Transmission (TX) Frequency Range | 80m – 6m Amateur Bands (3.5 – 57 MHz Scope with external ATU) |
| Reception (RX) Frequency Range | 2.0 – 90 MHz Extended Wideband Tracking |
| Maximum Input Power Rating | 400 Watts Peak Continuous Capacity |
| System Nominal Impedance | 50 Ohms |
| Primary RF Interface Socket | SO239 (UHF Female mechanical profile connector) |
| Tuned Voltage Standing Wave Ratio | 1.5:1 or better matching performance when driven with an ATU |
| Physical Antenna Element Length | 6 meters (Approximate total vertical assembly) |
Native Operational VSWR Reference Matrix (Tunerless Deployment)
The following performance distribution parameters indicate native standing wave behaviors across key targeted bands prior to active ATU compensation circuit engagement:
| Band Classification | Frequency Benchmark | Approximate Native VSWR Value |
|---|---|---|
| 80 meters | 3.5 MHz | 1.5:1 |
| 40 meters | 7.0 MHz | 2.0:1 |
| 30 meters | 10 MHz | 1.5:1 |
| 20 meters | 14 MHz | 2.5:1 |
| 17 meters | 18 MHz | 3.5:1 |
| 15 meters | 21 MHz | 1.5:1 |
| 12 meters | 24 MHz | 3.5:1 |
| 10 meters | 28 MHz | 1.5:1 |
| 6 meters | 50 MHz | 3.5:1 |
