This is the antenna that gives you the freedom to operate, the performance to be heard, and the elegance to be admired, even in the HOA.
The 20' DX Flagpole Antenna is our solution for the modern amateur radio operator. It delivers world-class, multi-band performance without the compromises of traditional antennas. Whether you're navigating strict HOA rules or simply demand a smarter, more reliable station, this antenna is your ticket to the world.
Is the 20' DX Flagpole Right for You?
This antenna was designed for you if:
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✅ You live in an HOA or deed-restricted community.
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✅ You want exceptional DX performance without burying a complex radial system.
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✅ The aesthetic of your home and yard is important to you and your family.
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✅ You value high-quality, American-made engineering that is built to last a lifetime.
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✅ You want a simple, "plug-and-play" system for all bands from 160-6 meters.
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: We use only premium T6061 aircraft-grade aluminum and stainless steel hardware. With a 110 MPH wind rating, this antenna is a permanent, reliable fixture, engineered to survive the elements and provide peace of mind. Pro Tip: Take the flag down for far higher wind ratings.
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Elegant Appearance: This is an antenna your entire family can be proud of. Its clean, single-radiator design—with no unsightly traps or coils—blends beautifully into any landscape. It’s a statement of quality that earns compliments, not complaints.
"I've finally found an antenna my wife is proud to have in our yard. Reminds her of her Dad's flagpole. The performance is just the icing on the cake!" - Actual Customer Quote
Upgrade Your Performance: Optional Extensions
Take your 20' DX Flagpole Vertical Antenna to the next level or the moon with these powerful, easy-to-install upgrades. Low bands never looked so good. Yes, it will work on the low bands as-is but the punch may be a fun addition to your operations.
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.]
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.]
What's in the Box?
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The 20' DX Flagpole Antenna System
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The RF Choke Kit
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All necessary stainless steel hardware for assembly already fastened to the antenna (no mess)
- Flag Kit: Flag, Clips, Rope, Cleat, Truck
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Ground-mount sleeve kit for easy installation.
Technical Specifications
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Frequency Coverage: 1.8 - 54 MHz (160-6m)
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Power Handling: No Power Limitations. Limited only by your choice of ATU and it's limits.
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Wind Rating: 110 MPH
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Height: 20 feet
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Material: T6061 Aircraft-Grade Aluminum
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Made in the USA
How does the Greyline Vertical Antenna compare to other well-known antennas such as the Hy-gain AV-680 and Cushcraft R9:
*The Red inner rings are 80M, blue 40M, green 20M, and orange 10M.
Comparing Greyline Performance HF vertical antenna & HOA Flagpole Antenna to the famed 43-foot vertical
The 24-foot performance measures land between the 20' and 28' angles and gain projections.
GROUNDING: As always, when considering your grounding of the Flagpole Antenna plans, follow the ARRL RF Guidelines.
SHIPPING:
USA: Free Shipping
DX: Low Rates (examples available at checkout. Test it!)
✓ Trusted by Professionals
Our antennas aren't just for hobbyists. Due to their extreme reliability and simple, robust design, Greyline antennas are in active use with US Government agencies, Emergency Operations Centers (EOCs), and commercial entities for mission-critical communications. When it has to work, they trust Greyline.
Greyline Performance Antennas are Popular with Ham Radio, CB, Preppers, and DX'ers alike. The digital modes are a natural fit with the often low noise and low power requirements as well as the professional industries that need a very high power capable antenna system with rapid frequency hopping (ALE) attributes. We are proud to serve Ham Radio, Disaster Prep, and Emergency Communications Agencies. Thank you.
We enjoy talking radio!
Write in or call us to discuss any questions you have. It’s an honor to serve you in this manner. Thank you for the opportunity.
Ham Radio is fun again! Please, pass it on...
73 Greyline Performance