HOA Stealth Flagpole Antenna · 160–6M · No Radials · Made in USA
The 20' DXF — Full-Size Performance. HOA-Approved Elegance.
The DXF20 is the benchmark — the height at which the VDA design truly opens up across all HF bands, delivering low-angle radiation for serious DX work while standing as a property asset any HOA board will approve on sight. The Vertical Dipole Antenna design returns current through the lower element, not through the earth, significantly reducing ground coupling and removing any dependency on buried radials. Fly the flag. Work the pile-up. Zero conflicts.
Field Report
"Fantastic alternative to HOA Karens. I tested it with a 200mw WSPR transmitter and reached Antarctica, Australia, and more. OH! And I also got compliments on the overall aspect of the flag and flagpole."
— Verified Owner · Judge.me Review
Band Coverage
160–6M
All HF bands. One antenna. Push a button.
Wind Rating (Flag Down)
90 MPH
ASCE 7-10 engineered. Flag-up: 60 MPH.
Guarantee
7 Years
Free shipping USA. 100% satisfaction.
The Physics
Why No Radials — and Why It Works
Traditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.
The Greyline VDA is a vertical dipole. Return current flows through the lower element — not through the earth. This design significantly reduces ground coupling and removes your performance's dependency on a soil-based return path. Proper current distribution raises radiation resistance, improving efficiency without a single buried wire.
Physics foundation: Zavrel W7SX · Antenna Physics: An Introduction (ARRL, 2020) · Kraus W8JK · Antennas (McGraw-Hill) · Deep dive: What is a VDA? →
In the Box
Everything You Need. Nothing You Don't.
Antenna System
- 20' DXF Flagpole VDA Radiator
- RF Choke & Precision Feedline Hardware
- Ground Sleeve Kit (in-ground + structure-compatible)
- Assembly Manual & Tuning Guide
HOA & Household
- USA-Made Flag Kit Hardware
- HOA Architectural Brief
- Property Integrity Letter (XYL / HOA ready)
- 7-Year Performance Guarantee
Structural Engineering
Built for Real Weather
The DXF20 is engineered to ASCE 7-10 structural standards. Federal practice: lower the flag when weather threatens. The flag-down rating is your engineering number.
| Model | Flag Down | Flag Up | Standard |
|---|---|---|---|
| DXF12 | 155 MPH | 100 MPH | ASCE 7-10 |
| DXF16 | 115 MPH | 75 MPH | ASCE 7-10 |
| DXF20 | 90 MPH | 60 MPH | ASCE 7-10 |
| DXF24 | 70 MPH | 50 MPH | ASCE 7-10 |
| DXF28 | 55 MPH | 35 MPH | ASCE 7-10 |
Ratings per ASCE 7-10. Lower flag during approaching weather per US federal flag protocol.
Take It Further
Upgrades That Actually Move the Needle
9' DX Whip
Increases capture area dramatically. Up to +3.5 dBi gain. The DX chaser's essential add-on.
View Whip →LDG RT-100 Remote ATU
100W weatherproof remote tuner. DC over coax. One-button tuning across 160–6M. Bundle and save.
View Bundle →Go Taller
The DXF24 and 28 add meaningful low-band punch. See the full comparison.
Compare All DXF Sizes →No Flag? No Problem.
Prefer a bare vertical without flagpole hardware? The DXV20 delivers identical VDA performance in a clean, unflagged package.
See the DXV20 →HOA & XYL Approved
We've Done the Hard Part for You
Every DXF ships with an HOA Architectural Brief and Property Integrity Letter. A decade of field experience. Fewer than 10 storm damage reports. Zero HOA complaints.
For Your HOA Board
Architectural brief, wind ratings, property value data, and a clean approval letter — ready to print.
HOA Approval Toolkit →For Your XYL & Neighbors
Common concerns addressed directly — appearance, safety, property values. Hand it over, let it do the work.
Neighbor & XYL FAQ →Grounding Note
Follow ARRL RF grounding guidelines. The DXF is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the Tuning & Feed System Guide →
Specs & Shipping
| Spec | Detail |
|---|---|
| Height | 20 feet |
| Band Coverage | 160–6M (all HF + 6M) |
| Design | VDA — Vertical Dipole Antenna, OCF |
| Power Handling | Legal limit — constrained only by ATU rating |
| Radials Required | None |
| Material | 6061-T6 Aircraft-Grade Aluminum + Fiberglass |
| Wind Rating (Flag Down) | 90 MPH — ASCE 7-10 |
| Wind Rating (Flag Up) | 60 MPH — ASCE 7-10 |
| Structural Standard | ASCE 7-10 Engineered |
| Shipping | Free — USA. International rates at checkout. |
| Made In | Sun Valley, Idaho — USA |
| Guarantee | 7-Year Performance Guarantee |
Ham Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902