Sammlung: DX Vertical Antennas — 160-6M HF, No Radials | Greyline
The DXV System · 160–6M, No Radials
A Physicist’s Answer to a DXer’s Problem.
How do you significantly reduce ground coupling — the single largest source of loss in a vertical antenna system — without burying a radial field across your yard? You feed the radiator off-center, elevate the feedpoint, and position the current maximum above the lossy near-field ground. That is the OCF Vertical Dipole Antenna. That is the DXV.
VDA physics significantly reduces ground coupling. Balanced dipole feedpoint. Lower ground losses. Reduced noise floor. 160 meters through 6 meters from a single feedpoint — including the WARC bands and 6M sporadic-E. Heavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — height-specific from 55 to 155 MPH.
All-band coverage is the headline. Adding the 9′ DX Whip extends the upper radiator across every band the antenna covers; the geometry happens to peak at 5/8λ resonance somewhere in the spectrum, where the literature documents up to 3.5 dBi over a 1/4-wave reference under ideal ground conditions. That single-band peak is a detail. The product is one pole, every allocation.
Smart
VDA physics significantly reduces ground coupling. Balanced feedpoint. Lower ground-loss. Reduced noise floor. Aperture-optimized for multi-band operation with a single feedline.
Strong
Heavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — ratings vary by model height, 55–155 MPH. See individual product pages for model-specific wind data. 100% duty-cycle rated.
Elegant
Clean vertical profile. Mounts on roof edge, rooftop, tower, ground post, or our ground sleeve method. Residential-compatible. No wire forests, no radial fields, no visible compromise.
Choose Your Vertical
Five core sizes from 12 ft through 28 ft — each covering 160 meters through 6 meters. No tuning required at the antenna. No pruning. No radials. Add an ATU at the base or in the shack for seamless transceiver matching and you are on the air in under an hour.
- 12 ft DXV — Entry-level full-band coverage. Apartment rooftop, small lot, or portable base mount. Wind-rated to 155 MPH (ASCE 7-10).
- 16 ft DXV — More aperture is more signal. The EmComm team’s first step up from portable. Wind-rated to 115 MPH.
- 20 ft DXV — Core performer. Small yard, suburban rooftop, or rapid-deploy EOC installation. Wind-rated to 90 MPH.
- 24 ft DXV — EmComm standard. Embassy-class performance. Chosen by HOA ops & agencies requiring permanent, high-reliability HF infrastructure. Wind-rated to 70 MPH.
- 28 ft DXV — Maximum aperture. EOC-grade. The highest-gain configuration in the Greyline VDA line. Wind-rated to 55 MPH. Guy support recommended above 24 ft in high-wind environments.
The 5/8 Wave Gain Engine
Pair any DXV with our 9-ft Adjustable DX Whip to hit the 5/8λ sweet spot on your target bands. Field-tested gain: up to +3.5 dBi at the horizon. That is the effective equivalent of doubling your transmitter power — without touching your radio, your license class, or your power limit.
The DXV System · 160–6M, No Radials
A Physicist’s Answer to a DXer’s Problem.
How do you significantly reduce ground coupling — the single largest source of loss in a vertical antenna system — without burying a radial field across your yard? You feed the radiator off-center, elevate the feedpoint, and position the current maximum above the lossy near-field ground. That is the OCF Vertical Dipole Antenna. That is the DXV.
VDA physics significantly reduces ground coupling. Balanced dipole feedpoint. Lower ground losses. Reduced noise floor. 160 meters through 6 meters from a single feedpoint — including the WARC bands and 6M sporadic-E. Heavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — height-specific from 55 to 155 MPH.
All-band coverage is the headline. Adding the 9′ DX Whip extends the upper radiator across every band the antenna covers; the geometry happens to peak at 5/8λ resonance somewhere in the spectrum, where the literature documents up to 3.5 dBi over a 1/4-wave reference under ideal ground conditions. That single-band peak is a detail. The product is one pole, every allocation.
“Night and day difference.” — Bill Cassidy. Switched from end-fed wire to Greyline 24’ DXV. Connected Australia, Japan, and all over the states within days.
ATU Options: Remote or Shack — Both Work Real DX
Every Greyline DXV is designed to work with an automatic antenna tuner at either end of the coax. A remote ATU at the base — such as the LDG RT-100 (100W) — keeps the feedline at a matched 50Ω on every band and minimizes coax loss on longer runs. A desktop shack tuner behind LMR-400 or better is equally effective for most installations. See our Feedline Physics guide and ATU placement explainer for the full technical breakdown.
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.
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28' HF Vertical Antenna | 160-6M | No Radials | Greyline Performance
- Normaler Preis
- $1,650.00
- Sonderpreis
- $1,250.00
