40M Antenna Projects for Amateur Radio Operators
Find construction plans and design ideas for various 40-meter antennas, including wire, vertical, and beam types.
The 40-meter band is a popular choice for hams, offering a good balance of local and DX QSOs, especially during evening and nighttime hours. Operators often use this band for ragchewing, contesting, and working various digital modes. Building an effective antenna for 40 meters can be a rewarding project, whether for a fixed station or portable operations.
This category provides numerous antenna projects and designs specifically for the 40-meter band. Hams can find plans for wire antennas like the W5GI Mystery Antenna or the NB6Zep, which offer multi-band capabilities. There are also designs for directional arrays such as the 40M Reversible Moxon and the 40 Meter Wire 4 Square Vertical Array, allowing operators to focus their signal for better DX. Many resources also cover compact designs like the EH antenna for those with limited space.
Sort:
Subcategories
-
Multi-band wire antenna covering 80 to 6 meters with low feed point impedance. -
A reversable quad antenna for 40 meters band by N4JTE -
A bowtie antenna is a type of antenna that reputedly provides higher gain at lower radiation angles than a center-fed dipole antenna at heights considerably less than 1/2 wavelength above ground. -
A double bazooka antenna plan for the cw portion of the 40 meter band -
Presents a DIY _Moxon_ antenna project for the 40-meter band, designed and documented by W7XA. Includes a downloadable PDF with construction details. -
Construction details for a wire Moxon antenna optimized for 40 meters, designed by SM0DTK for directional gain and QRM reduction. -
The author describes his experience building and using a Beverage antenna for the 40-meter band. Despite encountering some challenges, the antenna offered some improvements in receiving stations compared to a 3-element inverted Vee antenna. The Beverage antenna showed a significant daytime signal-to-noise ratio improvement and received signals better than the Vee antenna. However, the front-to-back ratio was not ideal, and the transmit power seemed to affect the Beverage antenna. Overall, the author concludes that the Beverage antenna might be more suitable for locations with higher noise levels. The total cost of the antenna was around 30 Euros. -
A modified 20 meter double zepp wire Operating Bands: 40 thru 10 meters (with tuner), basic construction and performance information. -
A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting -
Construction details for a dual-band 40/30 meter Moxon antenna by IK2CLB, featuring design evolution, materials, and performance data. -
G8ODE antenna project, where the 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house's gutter-board -
The page provides detailed instructions on how to build a double bazooka antenna for the 40 meters band. It includes information on materials needed, measurements, and assembly steps. The antenna can be configured as an extended dipole or an inverted V, offering low noise, wide bandwidth, and a 1:1 standing wave ratio. The content also offers calculations for other bands and includes photos of the antenna fabrication process. -
A detailed construction project for a reversible 40-meter Moxon rectangle antenna, offering performance comparable to a 2-element Yagi. -
40 meters elevated vertical antenna array at VA7ST -
On the field comparison among C-Pole antenna, an EFHW vertical antenna and an Inverter V dipole antenna. Test is done using two identical WSPRLite beacons that transmit with 200mW on the WSPR frequency and analyzing spotted results. -
Portable wire antenna for 40 and 80 meter made with a RF Chocke. Can be adapted to work on 160 meters by adding additional 6.9 meters wire at its end. -
A direct drive ring radiator antenna for the 40 meters band by W6WYQ QST article. -
This project started as a result of renewed interest in 40 meters coupled with the desire for an antenna system that would be more effective than the simple dipole. -
Modification of the Bill Petlowany, K6NO antenna by N0LX -
Instructions for building an HF mobile antenna from a CB whip base. Covers design, construction, mounting, grounding, and band switching for 7-28 MHz. -
A bazooka antenna project for the 7 Mhz, includes dimension for to homebrew your own bazooka for HF bands -
Gary Breed, K9AY experience with beverages on 40 meters -
Build a double bazooka coaxial dipole, broad-band dipole antenna -
One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx -
VK2ZAY end-fed antenna for 40 and 80 meter band -
G5RV 40m Beam Antenna. Adding a 28 ft. piece of vertical wire to one end of a 102 ft. center-fed dipole turns it into a 40m beam with a very wide beamwidth -
How to build a ground plane antenna for the 40 meters band in french -
A modified Hairpin antenna for a wider bandwidth an mounted on a grounded metalic mast -
End-Fed Half-Wave Antenna for the 7 or 10 MHZ amateur bands intended to provide a very simple to erect yet effective portable QRP antenna. -
Three eh antenna plans for 20 40 meters bands. -
The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. JA7KPI modified this antenna originally used as Inverted-V type of 80m band Dipole. Works on 40 - 80 meters band with acceptable swr. -
The intent of this site to share information about the design of a 40 meter horizontal phased array antenna. -
Analyzes the W6NL 40m Moxon Yagi antenna, presenting NEC-2 model data and performance characteristics in various configurations. -
Construction details for a simple and economical _Morgain_ wire antenna for 40m and 80m bands, including dimensions and tuning tips. -
Build a 3-element reversible quad antenna for 40 meters. -
Details the construction and performance of the NB6Zep, a modified 20-meter Extended Double Zepp antenna, optimized for 40-10 meters with a tuner. -
The idea of using a low mount dipole, enhanced with reflector wires directly beneath the dipole, on the ground, appears to be a very good approach to creating an NVI specific antenna for local HF operation. -
WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length -
Explore the innovative Pfeiffer Maltese Quad Antenna System for multiple bands. -
Hexagonal Wire Beams for 40-10m from DL7IO, different mono/multiband designs with building descriptions and model files for EZNEC -
Details a shunt-feed matching network for Hustler mobile HF antennas, improving SWR on 40m and 20m. Includes coil specifications and tuning instructions. -
How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. - Just the thing to fit in a small space such as the house attic -
Detailed construction guide for W1ZY's reversible 40-meter Moxon antenna, featuring a unique two-wire element design and extensive tuning insights. -
A technical presentation detailing the design, construction, and performance of W6NL's 2-element 40m Moxon Yagi antenna, including gain, SWR, and F/B -
J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands -
An experimental antenna similar to the TAK spiral antenna was evaluated for SWR response over the frequency range of 7.0 to 7.3 MHz, or the 40-meter band. -
A project for a Moxon antenna for 7 MHz with pictures and EZNEC model -
The page discusses the concept of a 2-element Parasitic Ground Plane antenna for the 40-meter band. It includes a conversation between amateur radio operators discussing modeling results and design considerations for the antenna. The author shares insights on radial configurations and the impact on antenna efficiency and pattern. -
3 Element reversable quad antenna for 40 meters band -
Detailed design and performance analysis of a 40-meter reversible Moxon antenna by VE3VN, including NEC5 modeling and coil inductance specifics. -
Construction details for a 40-meter mobile vertical antenna, inspired by a QST article, featuring a simplified top hat design. -
This page describes a comparison study on seven different beam antennas for 40 meters band. Yagi antennas, moxon antennas, mini horse all antennas are described with schema diagram , azimuth plot and SWR F/B Gain diagram -
A helically wound vertical antenna experiment. 14 meter of wire wounded on a 8 meter fishing pole with 4 elevated radials -
This antenna is designed for 40, 80 and 160 meters to complement a tri-band beam normally taken on DX peditions for 10, 15 and 20 meters, so six bands can be worked with only two antennas. -
Results or performance test using an harpin antenna for the 7 MHz -
Initial NEC model analysis for a reversible 40-meter Moxon antenna, comparing rectangle, W6NL short-tipped, and T-hat designs for performance and -
A 2 element small footprint 40 meter phased, reversible, downsized quad array antenna. -
This antenna is an off-center fed spiral dipole for 40 meters. The spiral dipole is very compact, making it well-suited for limited space (like an apartment patio), while the off-center feed gives the antenna some multiband capability. -
A 5/8 wave antenna, can be fed with ladder line from the center insulator to tuner. -
Setting up a ZZ Wave antenna, a dual band loop antenna covering 80 and 40 meters.