Grazioli HW20V 1/2 wave base antenna – maximum reliability for high-power HF use
Looking for an extremely robust and powerful base antenna for the HF band? Then the Grazioli HW20V is the perfect choice. This 1/2 λ end-fed vertical antenna is designed for continuous operation up to 3000 watts and offers maximum stability, efficiency, and durability – even under extreme conditions.
Build quality that stands like a house
The HW20V is constructed from cold-drawn AW6063-T66 aluminum , a high-quality alloy that ensures exceptionally strong and precise tubing. All mechanical parts are CNC machined for a perfect fit, minimal play, and maximum strength.
The mounting is completely stainless (AISI 304 and 316) , making this antenna resistant to corrosion and wear for years to come – even in challenging outdoor conditions.
Smart LC tuning system for optimal performance
With an end-fed 1/2-wave antenna, correctly matching the high impedance is crucial. Therefore, Grazioli designed an advanced parallel LC circuit with an air-wound high-Q coil and a precisely adjustable coaxial capacitor (similar to Gamma Match ). The system is equipped with PTFE insulation and can withstand voltages up to 40 kV , preventing heat generation and RF loss.
The coil is also directly DC grounded , which contributes to a quieter signal by suppressing atmospheric noise.
Why choose the Grazioli HW20V?
- Powerful 1/2 λ HF antenna, up to 3000 Watts continuous power
- Advanced tuning system with high Q coil and PTFE insulation
- Robust construction with high-quality aluminum alloy and stainless steel mounting
- Uniquely designed UHF-Female connector with gold-plated pin and true 50 Ohm impedance
- Withstands wind loads up to 130 km/h
- Precise fit, minimal loss factor and high efficiency
Specifications at a glance:
- Frequency range: 14,000 – 14,350 MHz
- Gain: 0 dBd / 2.15 dBi
- VSWR: typically ≤1.1:1
- Height: 10.7 meters
- Weight: 5.4 kg
- Bandwidth: ≥ 0.8 MHz
- Mast mounting: Ø 40–54 mm
- Impedance: 50 Ohms
- Connector: UHF-Female with PTFE and gold-plated pin
Ready for serious applications
With its powerful specifications, intelligent tuning and durable build quality, the Grazioli HW20V is ideally suited for both serious radio amateurs and professional applications where reliability matters.
Grazioli HW20V SWR chart

Invest in top quality for your transmitter – order the HW20V today!
Why Deltron?
💚 18 years of experience in communications equipment and accessories
Our knowledge is your security. Since 2007 we have been helping professionals and enthusiasts with reliable solutions.
💚 Fast delivery from stock. Ordered today = fast delivery. No waiting time, but certainty.
💚 100% original A-brand products. At Deltron you only buy original, certified products from renowned brands - no counterfeits, no worries.
💚 Buy on account for business customers (B2B). Easy and trusted payment via invoice. Specially for companies and governments.
💚 Pay afterwards or in 3 installments with Klarna and iDeal-in3. Order safely and quickly online at Deltron and pay afterwards with Klarna or choose iDeal-in3 and pay in 3 installments without interest and BKR registration.
💚 Certified webshop with reliable reviews. Deltron is Webshop Keurmerk-certified and reviewed via Trustpilot - so you can be sure that you order safely and reliably.





