40 Meter Loop Antenna Projects and Designs
Find construction plans and design ideas for various 40-meter loop antennas, including full-wave, half-square, and multi-band configurations.
Operators often choose loop antennas for the 40-meter band due to their excellent DX capabilities and relatively low noise reception. These antennas can be configured in various shapes like triangles, diamonds, or rectangles, and are often built as full-wave loops for optimal performance. Many hams find them effective for both local QSOs and working distant stations, especially during nighttime propagation.
This category features numerous antenna projects for 40 meters, including designs for full-wave loops, half-squares like the W7AV, and even multi-band loops covering 80 through 10 meters. Hams can find schematics and construction details for various configurations, from simple wire loops using coaxial cable, such as the G3YXM Small Loop, to more complex arrays like the LFA Antenna by YO2MBU. There are also specialized receiving loops, like the K9AY, designed to reduce noise on the low bands.
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A 40 meters band full wave antenna project plan with model, adding the Missing Leg to the Inverted-L Antenna -
A 7MHz Full wave loop antenna in diamond shape for field day operations made with three 31 foot Jackite poles -
A 40-meter antenna that provides good local and regional coverage during the day and good DX capability at night -
A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support -
This simple antenna is capable of remarkable results on 160, 80 and 40 metres. Forming a triangle from around 50 feet of satellite TV coaxial cable, the top of the triangle can be as low as 15 feet, and the lower side just high enough to prevent a passer by hanging themselves -
How to make the Super antenna. To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band -
K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter -
A 2 element Narrow Diamond Loop Array for 40 Meters by VE3VN -
Antenna model for a diamond loop wire antenna for the 40 meter band