HF Vertical Dipole Antenna · 160–6M · No Radials · Made in USA
The DXV20 — The Most Popular Vertical. Full HF Coverage.
The DXV20 is the vertical most operators choose — full 160–6M coverage from one feedpoint, no radials, no ground system, any surface. Twenty feet of aperture covers every band and does serious work across the spectrum. Go as tall as your site allows and you pick up bonus dB on the low bands, but the DXV20 is the height that fits most installs cleanly. Same OCF VDA physics as the full DXF lineup, in a clean bare vertical for rooftop, deck, and open-yard installs.
Why a Bare Vertical?
The DXV is the same vertical dipole as our flagpole series with the flag hardware left off — no visible stubs, no loading coils, no radial wires, no flag. A clean 2-inch pole that disappears against a rooftop, a tree line, or a commercial mast. For operators who don't need the flagpole disguise, it is the most direct path to the VDA architecture.
Band Coverage
160–6M
All HF bands. One antenna.
Ground System
No Radials
One feedpoint. Any surface.
Guarantee
7 Years
Free shipping — USA and Canada. Made in Sun Valley, Idaho.
Not sure this is the right height for your site? Call us at 435-200-4902 and we will spec your system in ten minutes — your surface, your bands, your power, your noise floor. A real person answers, and we would rather talk you into the right antenna than the expensive one.
The field reports below come from operators running Greyline DXF flagpoles — the same VDA core as the DXV20, with the flag hardware added. Each operator's configuration is named with their report.
Field Report — Colorado
“I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. It is a professional-grade product.” HOA approved. Concrete foundation. FT8 DX confirmed to Hawaii, South America, Europe, and Africa.
— Rob Freedman · WC0R · Retired Defense Antenna Executive · 29' DX Flagpole · Colorado HOA · Verified Owner
Field Report — North Carolina
ARRL CW Sweepstakes: Clean Sweep — all 83 sections, 600+ QSOs from an HOA lot. WPX CW and ARRL DX CW: 1,000+ QSOs each. “A Clean Sweep with my flagpole!”
— Bill · K3WA · PVRC President · 20' DXF (same VDA core) · Verified Owner
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. It works every band, 160–6M, from a single feedpoint with no radials. Return current flows through the lower element, not through a buried radial field, significantly reducing ground coupling and removing dependency on soil conductivity. On top of full coverage, the geometry peaks toward 5/8-wave on 10 meters for strong low-angle DX radiation — a bonus on the upper bands, not the whole story.
The physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.
The Gain Figures, With Their Reference
Full per-band modeled figures and their reference are stated on one sourced page so the numbers stay consistent everywhere. Aperture & Gain — the modeled figures →
Before You Install — Run a Noise Audit
The VDA has a 2-inch pole footprint and no radial field at all. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.
Full Installation Guide →In the Box
Everything You Need. Nothing You Don't.
Antenna System
- 20' DXV Vertical VDA Radiator
- RF Choke & Precision Feedline Hardware
- Ground Sleeve Kit
- Assembly Manual & Tuning Guide
Mounts Anywhere
- In-ground, tower, roof, deck, or dock
- 2-inch footprint, no radial field
- Stainless hardware, pre-fastened
- 7-Year Performance Guarantee
Structural Engineering
Built for Real Weather
Every DXV is engineered to ASCE 7-10 structural standards. With no flag, the DXV carries no flag drag — so it holds a single rating equal to the flag-down figure of the matching flagpole, because with the flag stowed that is what the flagpole is. A flagpole cannot be stronger than the bare pole it is built from. When you compare antennas, the question worth asking is which standard produced the number.
| Model | Wind Rating | Standard |
|---|---|---|
| DXV12 | 155 MPH | ASCE 7-10 |
| DXV16 | 115 MPH | ASCE 7-10 |
| DXV20 | 90 MPH | ASCE 7-10 |
| DXV24 | 70 MPH | ASCE 7-10 |
| DXV28 | 55 MPH | ASCE 7-10 |
Ratings per ASCE 7-10 for the bare vertical. The end customer is responsible for a foundation suited to the site.
Complete The Station
Three Discounts. One Cart. No Codes.
Coax, the tilt-up base and the RT-100 come off automatically when they ride in the same cart as the antenna. No codes. The rest are simply worth knowing about.
Coax — 10% Off
The antenna is only as good as the line feeding it, and a tired run can eat half your power on the high bands. Genuine Times Microwave, built to length.
Shop Coax →Tilt-Up Base — $25 Off
Lower it to waist height alone, in minutes. Whip changes, tuner service, storm prep — no ladder, no second person.
View Tilt-Up Base →RT-100 Remote Tuner — $25 Off
A wide-range ATU is required either way. The RT-100 lives at the feedpoint, weatherproof, DC over coax, one-button tuning 160–6M.
View RT-100 →9' DX Whip
Adds 9 feet of aperture on top of the 20-foot radiator. The DXV20 plus the whip is the Skyline 29 — 29 feet of vertical, and the low bands know it.
View Whip → Skyline 29 →4' Vertical Extension
Four more feet of radiator, added at the top section. The smallest step up the line — a 20-foot DXV becomes 24 feet of aperture without a new antenna. Ships with the transition splice.
View Extension →316 Marine Hardware
Salt air finds the fasteners first. Every antenna ships with stainless hardware throughout; for waterfront, coastal and dock installs, the 316 marine kit is the grade specified for saltwater service. Fits 12' through 28'.
View 316 Marine Kit →Sites & Deployment
Built for Where a Bare Pole Belongs
The DXV goes where the flagpole disguise isn't needed — rooftops, open yards, waterfront, towers, and commercial or agency sites. A decade of field experience behind the design.
Rooftop, Yard & Tower
2-inch footprint, no radial field, mounts to ground sleeve, tower, roof, deck, or dock. Find the quietest spot and put it there.
Setup & Manuals →Behind HOA Lines?
If your site needs the flagpole disguise and approval paperwork, the DXF20 carries the same VDA core with the HOA brief included.
See the DXF20 →Feed System Note
The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the Tuner & Balun Configuration Guide →
Specs & Shipping
| Spec | Detail |
|---|---|
| Height | 20 feet |
| Band Coverage | 160–6M (all HF + 6M) |
| Design | VDA — Vertical Dipole Antenna, OCF |
| Modeled Gain | Per-band figures, with their reference, on the Aperture & Gain page → |
| Power Handling | Legal limit — constrained only by ATU rating |
| Radials Required | None |
| Material | 6061-T6 Aircraft-Grade Aluminum + Fiberglass |
| Hardware | Stainless throughout; 316 marine kit available for coastal sites |
| Wind Rating | 90 MPH — ASCE 7-10 |
| Shipping | Free — USA and Canada. International rates at checkout. |
| Made In | Sun Valley, Idaho — USA |
| Guarantee | 7-Year Performance Guarantee |
Construction — 6061-T6 Aircraft Aluminum
Outside: 2" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. Inside: wall graduates where the physics demands it — 0.125" lower 30% where base bending stress peaks, 0.065" upper 70% where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. Stainless hardware throughout. Threaded transition sections machined directly into the metal — self-aligning, no through-bolting, less total weight.
A note on diameter, because it's widely misread: a thicker pole is not automatically a stronger one. Wind force scales with projected area — the width the wind actually sees — so doubling a pole's diameter roughly doubles the wind load it must survive, before accounting for the extra mass carried at height and the added dynamic fatigue on every gust cycle. The Greyline runs a 2-inch outer diameter precisely because a slim, engineered section sheds wind better than a fat one fights it. Narrower, run correctly, is the stronger answer.
Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. A wind rating without a cited standard is a guess dressed as a spec. Ask any antenna maker which standard they used. If they can't cite one, you have your answer.
Common Questions
Before You Order — Answered.
What's the current lead time and availability?
Each antenna is built to order. Current lead time is always posted on our Order Status page → Call 435-200-4902 for a specific ship date.
How long does shipping take?
Shipping is free — USA and Canada. Ground transit runs 2–5 business days once it leaves a Greyline facility. Tracking sent at shipment. International rates calculated at checkout.
Can I get marine-grade hardware for a coastal install?
Yes. Every Greyline ships with stainless hardware throughout as standard. For waterfront, coastal and dock sites, the 316 Marine Stainless Hardware Kit → is the grade specified for saltwater service. It fits 12' through 28' Greyline verticals — order it with the antenna.
What's included — do I need to source anything separately?
Everything to assemble and mount is in the box. You supply coax and an ATU. That's it.
✓ VDA Radiator (your chosen height)
✓ RF Choke & Precision Feedline Hardware
✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible
✓ Assembly Manual & Tuning Guide
✓ 7-Year Performance Guarantee
The DXV ships as a bare vertical. The DXF flagpole models add USA-made flag kit hardware, the HOA Architectural Brief, and the Property Integrity Letter.
Do I need an ATU — will my radio's internal tuner work?
Yes, an external ATU is required. The VDA presents variable impedance across its operating range — that's how it covers 160–6M from a single feedpoint with no traps and no radials. Most internal tuners won't handle the full impedance range on every band.
An external ATU lives in one of two places, and both are right depending on your run. For a short feedline run, a desktop ATU at the radio is the simpler path — it stays warm and dry indoors and you can hear it tune. For a longer run, a weatherproof remote ATU at the antenna base keeps the match close to the feedpoint; the LDG RT-100 is a low-cost 125W fit for that job, and it takes $25 off automatically when it's in the same cart as the antenna. All ATUs carry a reduced power rating for digital modes (FT8, Winlink, JS8Call) due to 100% duty cycle heat loading — check your tuner's digital rating before running full power on those modes. Running high power? The antenna handles the full legal limit on every band — the tuner is the only ceiling.
How difficult is installation? How long does it take?
Most operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.
Assembly documents at Setup & Manuals → Questions during install? Call 435-200-4902.
What does the 7-Year Guarantee cover?
Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at 7-Year Warranty Policy →
Every Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.
The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under The Signal Lab · The Shelf We Read From in the menu, open to everyone.
Ham Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902