Data-Driven Antenna Comparisons | Greyline Performance

Antenna Performance Comparisons

Choosing an HF antenna is one of the most important decisions an operator can make. In a world of marketing claims and forum debates, we believe in providing clear, data-driven analysis. This is where our engineering meets the pavement. Explore our comparisons to see the modeling and understand the real-world performance of our designs.

Greyline vs. Legacy Antennas

Wondering how modern antenna engineering stacks up against the classics? See the RF plots and analysis that show the performance gains of a no-radial Vertical Dipole Antenna (also the same RF design as our Flagpole Antennas)

[Read the Legacy Comparison →]

Choosing Your Greyline Height

From 12' to 28', each of our antennas is a top performer. This guide breaks down the performance plots and ideal use-cases for each model to help you find the perfect fit for your station.

[View the Performance Guide →]

Greyline vs. The 43' Vertical

The common wisdom says "bigger is better," but antenna engineering tells a different story. See the data-driven case for why our efficient design often outperforms a taller, 43-foot vertical.

[See the 43' Vertical Data →]

Remote vs. Shack Tuner

Does tuner placement really matter? We compare the engineering ideal of a remote tuner at the antenna's base against the popular and practical shack tuner. Both are great but it's best to understand the science of feedline loss and SWR to optimize your station for peak performance.

[Read the Tuner Guide →]

20' HOA Antenna - Great Product

Excellent antenna. Made significant DX contacts over the past nine months. Straight forward installation with very good support from Greyline.

Quality Workmanship

I submitted a very positive review on the performance of my 20" flagpole but neglected to mention the high quality of the machining on the pieces and hardware. The pieces went together like a hand and glove.
Really appreciate the fine workmanship.

4’ Extension Review

The 4’ extension arrived in a reasonable amount of time. Construction was excellent and assembled easily with my existing 24’ flagpole antenna. I have noticed improvement in reception and signal reports on the air, and look forward to continued experimenting on the air with this addition to my station.

20ft flagpole

Looks tremendous with Uk flag and works superb Highly recommended

Preliminary Review of 24' Flagpole Antenna

I purchased the 24' flagpole antenna with 4' extension added later. The materials and construction are very good. Parts fit together very well. Antenna aside, this is a handsome flagpole with flag.
I had no expectations for 160 meters. I purchased the antenna to supplement my EFLW antennas for 40 and 80 meters. Initially all tuned well from 10 - 40 meters using an LDG RT-100 remote tuner, but unable to tune on 80 meters. I upgraded to a Chameleon CHA-URT-1500 1.5 KW remote tuner, but still unable to resonate on 80 meters. I added a Palomar 4:1 balun between the remote tuner and the antenna and now am able to tune antenna well on both 40 and 80 meters.
I have had impressive domestic and DX contacts on 10-40 meters so far. I am hoping that with a little more effort, I can eventually get DXCC on both 40 an 80 meters. Will keep you updated.