The Greyline 28-foot vertical antenna is a high-performance, no-radial-required solution. Designed specifically to be HOA-friendly and XYL-approved, it offers elite 160-6M coverage without the footprint of traditional antennas.
Engineered for the Amateur Radio (Ham) enthusiast and the Emergency Management (EMCOMM) professional, this is the ultimate stealth ham radio antenna for high-performance operation in strict environments.
This high-performance, no-radial HF Vertical Antenna is the definitive choice for a hidden antenna for ham radiopermanent install, rapid deployment use, NVIS, low-angle DX, and mission-critical communications. Whether you are chasing weak-signal DX or maintaining a 24/7 disaster recovery link, Greyline delivers the 160-6M reliability required when the grid goes down.
The Greyline DX Vertical series is built to the same rigorous standards as our global embassy and defense contractor deployments. This 'Dual-Use' vertical dipole provides uncompromised multi-band performance without the high noise floor of traditional antennas or the need for a complex radial field.
Professional Compliance & Deployment Suite Included
We provide the technical documentation required for both residential station approval and agency procurement:
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For Agency Procurement: Our Commercial-Grade Engineering Guide provides the technical specifications required by Emergency Operations Centers (EOC), NGOs, and government contractors for high-duty cycle, rapid-deploy use.
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For Your XYL & Neighbors: Even in its raw vertical form, our low-profile design and Property Value & Neighbor FAQ address concerns regarding safety, extreme wind ratings (up to 155MPH), and high-quality aesthetics.
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For Technical Approval: Our RF Excellence Brief details the physics of the no-radial vertical dipole, ensuring your station meets the highest standards of safety and efficiency.
The Commercial Standard: Why settle for a hobbyist kit? Our systems use the same radiator technology trusted by state agencies and US Embassies. 100% Made in the USA with a 7-Year Performance Guarantee.
Is the Greyline HF Vertical Right for You? If you demand smarter physics, stronger materials, and a professional-grade signal that cuts through the noise, you've found your solution.
Is the HF Vertical Your Perfect Antenna?
This antenna was designed for you if:
✅ You are a serious or Contester who needs the lowest possible angle of radiation to break through pileups.
✅ You need a rugged, field-deployable system suitable for Government Agencies, , , or applications.
✅ You want the technical advantage of wave-capable gain on key bands without a massive tower structure.
✅ You value superior, engineering built with aircraft aluminum for a lifetime of use.
What's in the Box? (The Core System)
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The HF Vertical Antenna System (v2, )
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The Choke Kit (Line Isolator)
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ground-mount sleeve for easy, no-radial installation
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All necessary stainless steel hardware for assembly.
Technical Specifications
| Specification | Detail |
| Frequency Coverage | |
| Power Handling | (Limited only by your choice) |
| Material | T6061 Aircraft-Grade Aluminum |
| Wind Rating | (Self-Supporting) |
| Deployment | Self-supporting, No Radials, Permanent/Field |
Popular Packages & Add-Ons:
Explore Complete Antenna Systems Tuner Bundles
The Greyline Advantage: Smart, Strong & Elegant
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Gain Potential: Every Greyline is engineered for universal gain across all bands. Utilize our extensions to precisely tune your system's electrical length and maximize output on your key operating bands, achieving up to of low-angle power.
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Strong Engineering (Rugged Reliability): Constructed with heavy-duty aluminum and stainless steel hardware. This is a commercial-grade antenna designed for wind loads, ensuring mission readiness in any environment.
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Elegant Performance: The sleek, professional profile is a clean and effective radiator with no unsightly traps, coils, or clutter to fail. Seamless elegance and silent operation.
| Feature | Greyline DX Flagpole (Commercial Grade) |
Standard Hobbyist Verticals (Consumer Grade) |
|---|---|---|
| Antenna Type | Vertical Dipole (Complete Circuit) | Monopole (Requires Ground) |
| Radial Requirement | None. Landscaping stays intact. | 32–100 Radials. Requires excavation. |
| Structural Warranty | 7 Years (No Questions Asked) | 1 Year (Limited) |
| Insulator Material | Proprietary High-PSI Fiber & Metal (Zero Plastic) | Plastic, Nylon, or Delrin (UV Prone) |
| Wind Rating (Flagged) | 80–155+ MPH (Hurricane Rated) | 70–95 MPH. Often unrated with flags. |
| Wall Thickness | .125" – .156" (Commercial Spec) | .050" – .065" (Thin-Wall) |
| Market Valuation | $3,000 – $5,000 (Asset Grade) | $500 – $1,200 (Component Grade) |
Upgrade Your Performance: Optional Extensions
Take your 28' HF Vertical Antenna to the next level or the moon with these powerful, easy-to-install upgrades. Low bands never looked so good.
The 9' DX Whip: For the Ultimate DX Chaser (+3.5 dBi Gain!)
Add to the standard top section and truck with this lightweight (2 lbs), stealthy 11.5-foot whip to dramatically increase your antenna's capture area. This will add between 1 - 3.5 dBi of gain on key ham bands, turning good signals into great ones and making you the loudest station in the pileup. It’s the ultimate performance boost for very little added weight.
[Click here to add the 9' DX Whip.]
The 4' Extension: For the Serious Low-Band Operator
Adding this 4-foot, heavy-duty section increases the electrical length of your antenna, noticeably boosting its efficiency and performance on 80 and 160 meters. If you love chasing DX on the low bands, this is a must-have upgrade.
[Click here to add the 4' Extension.]
Our antennas are in active use with US Government agencies, , and commercial entities for mission-critical communications. When it has to work, they trust Greyline.
We enjoy talking radio! Contact us, we are here for you.