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An inverted V antenna for 40-80 with loading coils. This antenna is a full size on 40 and a shortened 80 by KG0ZZ.

A W3DZZ trapped dipole for 80 40 and 20 meters band by ZL1BJQ

A wire yagi antenna model, easy to build, made using inverted vee elements and requiring just one support by ve3vn

A three-frequency multi-band dipole that can be extended easily to additional bands. This article includes a multiband fan-dipole antenna for 80-40-20-10 meter band.

A well documented article on a small magnetic loop antenna for the 40 meters band

An home made trapped dipole antenna for 40 and 60 meters band by 2E0HTS

This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands

A page about a Magnetic loop antenna project for the 40 meters band, includes nice pictures and history of construction

Local and DX contacts from tight spaces, it works from 40 to 17 meters

An 87ft inverted L portable antenna working on 80 40 30 20 15 meters band

A telescopic pole that you adjust to suit the band you're working on , tested on 40 20 and 15 meters band by M0PZT

A multiband wire antenna with a twinlead feedline that can be easily tuned in several bands, witha 33 ft per leg you can have a 40 to 10 meters band coverage

A 40-meter antenna that provides good local and regional coverage during the day and good DX capability at night

This note looks at the antenna and antenna model for the 40 meter Moxon Yagi designed by Dave Leeson, W6NL. The performance of the antenna, through the model, will be explored in several typical settings.

VU2VWN project to homebrew a CW for 40 meters band

The RTTY Net is one of several Nets run by the 3905 Century Club. There are SSB Nets on 160, 75, and 40 Meters and CW Nets on 80 and 40 Meters

This transceiver was conceived as a power-efficient, small, lighweight unit to be carried in the backpack, along with antenna and battery.

40 meter vertical antenna construction, a shortened easy-to-build vertical, with no-radials, made from surplus military camouflage poles

A vertical dipole for 10, 15, 20 and 40 meters made adapting two Hustler Model 6-BTV antennas by w6sdo

A three element wire yagi antenna for 7 MHz project plan with drawings and EZNEC model

A vertical antenna project than can present low swr from 40 to 10 meters by using a balun in french

An 85ft wire fed against a 17ft counterpoise that works well in 80 and 40 meters

Very compact and high efficiency antenna ,very low radiation angle even at low height.

A multiband dipole antenna that can work on 15 20 and 40 meters band made with common materials

RX Antenna 160m/80m Band Splitter/Switch, a small project that will work along with the K9AY RX antenna

A simple 7 bands off-center dipole wire antenna designed to work on 80 meters band and that can cover also 40m 30m 20m 15m 12m 10m with acceptable SWR

A simple 40 meter CW transmitter, it sports full break-in operation and 250 mW of output power.

A vertical dipole for the 40 meters band made by using some buddipole parts and adding capacities on both ends by HB9MTN

Compact and efficient magnetic loop antenna that cover from 40 to 10 meters project by G8ODE published by RSARS

A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters

A compact halfwave endfed wire antenna tuner that works 12 thru 40 meters with a halfwave wire for the band of interest attached

The G5RV JR cover 10-40 meters band a project by PU2OKE

A 7MHz Full wave loop antenna in diamond shape for field day operations made with three 31 foot Jackite poles

A 4 element Wire Yagi antenna design for the 40 meters band

How to homebrew a ENVIS antenna for 80 and 40 meters band

A mobile vertical antenna for 40 meters band by W4NFR

The Vee Beam antenna project presents a versatile solution for hams, enabling operation across all eight High Frequency bands (80m to 10m) with significant gain on 20m to 10m. This easy-to-construct antenna utilizes two long wires at an angle, enhancing directional performance and minimizing ground losses. With a low visual profile, it is discreet and effective for various applications. The design allows for optimal leg lengths and included angles, ensuring robust performance while maintaining simplicity in construction and operation. The V Beam antenna is an aerial that you can use on all eight High Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 to 10 meters band.

Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY

Near Vertical Incidence Skywave (NVIS) and the 40 meter Novice Sub-band.

An Off-center-feed antenna that covers 80, 40, 20, 17, 15, 12, 10, and 6 meters

A simple RF power amplifier initially designed for 40 meter band can work on 10 15 20 40 80 meters

A magnetic loop antenna for 7 Mhz by ZL1BJQ

3 Element reversable quad antenna for 40 meters band

DF9CY experience on a vertical antenna for 40 meter band

This 40 meter Inverted V antenna was tested and tuned at a height of 35 feet and proved excellent results. The ends of the antenna are about 11 feet above the ground. Article and video available

An attic antenna for 40 and 80 meters band by NS1W

A short dipole wire antenna for 40 meters band. It is a folded dipole that do not make use of coils and can be used either in horizontal or inverted V configuration

If you have space constraint at your QTH for a HF antenna, you can try contructing this HF magnetic loop antenna for 40-20 meters bands

Shortened vertical antenna for 40 meters band an homebrew project

A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters