
New Antenna For FM Dxers, 10 Elements Log Periodic 87 - 108 MHz
We have recently added a new antenna for serious FM DXing: a 10-Element Log Periodic Antenna covering the full FM band from 87 MHz to 108 MHz.
This antenna is constructed using high-quality materials, ensuring long-term durability and reliable performance in all weather conditions.
Why Choose a Log Periodic Antenna?
The Log Periodic Dipole Array (LPDA) was invented by John Dunlavy in 1952. It is a multi-element, directional antenna designed to operate efficiently across a wide range of frequencies. The elements of an LPDA vary in length and spacing logarithmically, allowing consistent performance—such as gain, front-to-back ratio, and SWR—across a broad spectrum.
Since the FM broadcast band spans 21 MHz (from 87 MHz to 108 MHz), a wideband antenna like the LPDA is the ideal choice. Unlike narrowband antennas that may perform well only in limited parts of the spectrum, the LPDA offers reliable reception across the entire FM band.
What is FM DXing?
FM DXing is the hobby of receiving distant FM radio stations, typically beyond the normal range. FM broadcasts operate within the VHF range, which normally travels in a straight line (line-of-sight) and is limited by the Earth's curvature—typically around 64 km (40 miles). However, under certain propagation conditions such as Sporadic E or Tropospheric Ducting, FM signals can travel hundreds or even thousands of kilometers, being reflected or refracted by layers of the atmosphere.
During these propagation events, even a simple telescopic antenna can sometimes receive distant signals. But to fully take advantage of these conditions and to pull in weaker, more elusive stations, a high-performance antenna is essential.
How Does a High-Gain Directional Antenna Make a Difference?
While strong DX signals can occasionally be received with basic antennas, many distant stations come in weak and are buried under noise or interference. That’s where our 10-Element Log Periodic Antenna excels. Its high gain and directional characteristics help isolate and amplify these weak signals while rejecting interference from unwanted directions.
Thanks to its excellent forward gain and front-to-back ratio, this antenna significantly improves your chances of clearly receiving and identifying distant FM stations—even under less-than-ideal conditions.
Performance and Aesthetics
Our 10-Element Log Periodic Antenna not only performs exceptionally well across the entire FM band, but it also adds a classic, nostalgic touch to your rooftop. Its robust construction and sleek design make it both a functional and visually appealing addition.
Product Link: https://rfdxing.com/products/rfd-lp10fm-10-elements-fm-dxing-log-periodic-antenna
Test Result of 10 Element Log periodic Antenna for FM DX.
1 comment
Very nice and informative article. FM dxing is really challenging and interesting at the same time.
There is also another DXing known as AM/MW/LW DXing.
Hope to see articles on that aspect.
Keep the good work.