Customer Case Study · 28' DX Flagpole · Four-Year Owner
Four Years on the Air with a 28' Greyline Flagpole
Bill WB8UIN bought a 28' Greyline DX Flagpole and assembled it in an hour. Four years later, he runs 100 watts to the antenna, hides his remote ATU inside a landscape rock, and works DX across Europe and the Atlantic from his QTH. This is the long-term operating profile of a thoughtful operator who chose Greyline once and never looked back.
Bill WB8UIN — 28' DX Flagpole Owner Since 2020
"Performance has been fantastic. It only took me an hour to assemble."
— WB8UIN, on his Greyline 28' DX Flagpole
WB8UIN's 28' DX Flagpole. The MFJ-993BRT remote ATU is hidden inside a faux landscape rock at the base. From the street: a flagpole and a rock. From the operating position: 160 through 6 meters from a single feedpoint.
Why This Case Study Matters
Most antenna reviews capture the first month of ownership — the install, the first DX, the early excitement. WB8UIN's case is different. He has run his 28' Greyline DX Flagpole for over four years. That's enough time to expose any structural weakness, any RF anomaly, any build-quality issue that would surface in real-world conditions.
It hasn't. The antenna performs. The install is invisible. The owner is happy. That's the four-year report.
Operating Profile
100 watts · Modest power, smart system
No amplifier. No tower. Just engineering, aperture, and skill.
Confirmed DX
Russia · Slovenia · Italy · Scotland · Puerto Rico
Representative slice from one operating year — many more on file
Time to Air
One hour from box to operational
Threaded transitions, clear documentation, no special tools required
The Station Architecture
WB8UIN's setup is a study in deliberate component selection. Every choice in the signal path was considered. The result is a station that punches well above its 100-watt weight class because nothing is fighting the rest of the system.
Antenna: Greyline 28' DX Flagpole
The 28-foot configuration is Greyline's tallest production model and represents the largest aperture in the DX Flagpole line. At this height, the antenna's 5/8-wavelength sweet spot lands on 15 meters — one of the prime DX bands during a solar maximum. The OCF (off-center fed) feedpoint placement allows multi-band operation from 160 through 6 meters from a single feedpoint, with no buried radials.
Construction is 6061-T6 aluminum with graduated wall thickness. Wind rating per ASCE 7-10: 55 MPH at 28 feet, flag removed. The flagpole is the structural element. The antenna is inside it.
Transceiver: Kenwood TS-2000 at 100 Watts
The TS-2000 is a long-running Kenwood multi-mode rig — HF, VHF, UHF, all in one chassis. WB8UIN runs 100 watts maximum. There is no amplifier in the signal chain. Every DX result on this page was achieved at the legal-limit-friendly power level a basic license operator could run.
ATU: MFJ-993BRT Remote Tuner
The MFJ-993BRT is a remote-mount automatic tuner positioned at the antenna base, where it belongs. By matching impedance at the feedpoint rather than at the rig, the tuner eliminates feedline losses on out-of-band frequencies. WB8UIN's ATU choice predates Greyline's current RT-100 recommendation, but the principle is the same: remote tuning at the base preserves what the antenna gives you.
Note for current buyers evaluating tuner options: roughly half of Greyline operators use a desktop ATU at the rig instead of a remote tuner at the base. Both architectures work. The right choice depends on your operating mode mix and feedline run length. See our remote vs. shack ATU doctrine post for the full breakdown.
Feedline: LMR-400-DB with Common-Mode Chokes
LMR-400-DB is the direct-burial variant of LMR-400 — jacketed for ground contact, lower loss than RG-8X, and rated for the typical residential feedline run from antenna to shack. WB8UIN added six ferrite clip-ons along the feedline as common-mode chokes, addressing common-mode current return paths that can otherwise inject RF into the shack.
This is a textbook clean RF return architecture. Cheap, effective, often skipped by operators who don't realize the shack RFI they're chasing is actually a feedline issue.
The Hidden-ATU Aesthetic Move
WB8UIN's MFJ-993BRT lives inside a faux landscape rock at the antenna base. From the street, you see a flagpole and a rock. No box. No enclosure. No visible RF hardware. This is the install detail that separates a competent ham from an artist.
For HOA-restricted operators or anyone whose XYL appreciates a clean yard, the hidden-ATU move is one of the highest-leverage aesthetic upgrades available. The faux landscape rock costs about $30 at any home improvement store. The credibility it buys with neighbors and HOA boards is essentially priceless.
The DX: Four Years of Real Results
From his QTH on 100 watts, WB8UIN has worked stations across Europe, the Atlantic, and the Caribbean. The list below is a representative sample from one operating year — not a complete log:
- Russia — Long-haul polar path. Difficult propagation under marginal conditions; possible only when the antenna is genuinely radiating efficiently.
- Slovenia — Central Europe. Common DX target during European openings.
- Italy — Southern Europe. Reliable workable target on multiple bands.
- Scotland — UK and northern Atlantic. Solid signal reports both directions.
- Puerto Rico — Caribbean. Daytime path, lower-band capability confirmed.
The Reverse Beacon Network (RBN) screenshot below documents WB8UIN's signal as heard by automated skimmer stations across multiple continents. RBN data is the closest thing amateur radio has to objective signal measurement — algorithmic, timestamped, geographically distributed.
RBN signal reports for WB8UIN — 28' Greyline DX Flagpole, 100W, multi-continent reception confirmed
The Four-Year Longevity Report
Most antenna case studies don't earn the right to be published until a few weeks after install. WB8UIN's antenna has been in the ground for over four years. In that time:
- Zero structural issues. The 6061-T6 aluminum and threaded transitions have held up to four years of weather without intervention.
- Zero RF anomalies. The OCF feedpoint and remote ATU continue to deliver clean matches across all operated bands.
- Zero install regrets. The hidden-ATU rock is still in place. The flagpole still flies the flag. The neighbors still see a flagpole.
"Performance has been fantastic." — WB8UIN, four years in
The Antenna WB8UIN Chose
Same 28' DX Flagpole. Same OCF VDA architecture. 6061-T6 aluminum, ASCE 7-10 wind engineered to 55 MPH at 28 feet, 160 through 6 meters from a single feedpoint. Made in Sun Valley, Idaho.
See the 28' DXF → Selection Guide →Other Verified 28' DX Flagpole Operators
WB8UIN's case is one of multiple verified 28' DX Flagpole operators on file. For a different buyer profile — coastal Florida, MARS-credentialed, EmComm-active — see AG4FC's case study. Same antenna, different operator profile, same result: it works.
Related Reading
- 28' DX Flagpole product page — full spec, options, ordering
- AG4FC — MARS operator's 28' flagpole on the Florida coast
- WC0R — Defense antenna executive's 20' DX Flagpole
- Remote vs. shack ATU doctrine
- Feedline Physics — coax choices, common-mode chokes, ferrite doctrine
- What is a VDA? Vertical Dipole Antenna physics explained
- Agency & Government HF Solutions
Greyline Performance · Sun Valley, Idaho · 435-200-4902 · Contact · 73 and good DX.