Collection: DX Flagpole Antennas | HOA-Approved HF Verticals 160–6M

The Greyline DX Flagpole Series

A World-Class HF Station. Hidden in Plain Sight.

Your neighbors see a flagpole. Your radio sees 160 meters to 6 meters — no radials, no compromise, no HOA grief. The DX Flagpole Antenna is the only product on the market that satisfies an architectural committee and a pileup.

Choose Your Flagpole

Five sizes — 12 ft through 28 ft — each covering 160 meters through 6 meters out of the box. All ship ready to assemble with included RF choke and hardware. No tuning. No pruning. No excuses.

• 12 ft GP12 — Tightest-lot solution. Full-band coverage where a taller mast won't fit.
• 16 ft GP16 — Step up in aperture. Increased efficiency for the serious operator in a compact package.
• 20 ft GP20 — The best-seller. Proven by 1,000+ installs. N0CPO worked 100 countries in 9 months on one.
• 24 ft GP24 — Embassy-grade performance. The choice of defense executives and quiet professionals.
• 28 ft GP28 — Maximum aperture. EOC-class signal. Built for operators who refuse to negotiate.

The 5/8 Wave Gain Upgrade

Any GP20–GP28 paired with our 9-ft Adjustable DX Whip hits the 5/8λ "Golden Ratio" on 10M–20M — a measured +3.5 dBi gain advantage at the horizon. That's the effective equivalent of doubling your transmit power on the bands that win contests. Upgrade at any time. No tools required.

Already Trusted Beyond the Hobby

Greyline antennas are in active service with US Embassies, state Emergency Operations Centers, and defense contractors — not because they're flashy, but because they work when nothing else is allowed. If the mission requires an antenna that looks like a flagpole and performs like a DX station, this is it.