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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 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

A wire delta loop antenna project for six meters band

Halo antenna plan for the six meters band

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.

The document provides a detailed guide on modifying an inverted-L antenna to include the 160 meters band. This enhancement allows amateur radio operators to utilize the lower frequency effectively, which is crucial for long-distance communication, especially during the night. The inverted-L design is popular due to its compact size and ease of installation, making it suitable for various environments. By adding top band capabilities, operators can engage in DXing and contesting on 160m, expanding their operational range and opportunities. The guide includes practical tips and considerations for construction, ensuring that the antenna maintains its performance across the extended frequency range. It discusses the necessary adjustments and materials required for the modification, along with potential challenges and solutions. Whether you are a seasoned operator or a beginner, this project can enhance your station's capabilities, allowing for more versatile operations and improved signal quality on the 160m band.

A trifilar folded dipole antenna for 80 meters band

A ground plane antenna for 80 meters band

EF155A1 21 MHz monobander antenna by YU7EF

An end-fed halfwave antenna for 20 meters band with balun pictures and description by PD7MAA

How to build your own beverage antenna for 80-160 meters band by K5ZD

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

The webpage provides information about the Citizen Band mailbox DBO274 in Germany, with HTTP/telnet-access. It covers topics related to CB Radio, Packet and Digital emissions, and eleven meters band.

A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX

An home made Z-Match antenna tuner unit that cover all HF bands between 10 and 160 meters

The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU

3 Element reversable quad antenna for 40 meters band

5/8 vertical groundplane antenna for six meters band

A shortened 160 meters band antenna for hams who do not have 260 ft of space, based on a open-wire-fed short dipoole

The circuit described below will substantially reduce or completely eliminate interference from almost any local source whilst leaving the wanted signal relatively unaffected, even though it may be on the same frequencey by TREVOR, G3ZYY

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

An attic antenna for 40 and 80 meters band by NS1W

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 well documented article about construction and analysis of a horizontally polarized halo antenna for 6 meters band by Dr. Carol F. Milazzo, KP4MD

A QRP transceiver for 80 meters band by W1FB

A vertical monoband antenna design that can work from 6 meters to 70 cm by F5ZV in French

An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.

A 21 MHz Four Square Beam Antenna This popular antenna for the lower bands, can also work well on 15 meters, QST Article

A SSB CW transceiver for six meters band with schematic and block diagram

A power line noise eliminator designed to eliminate QRN expecially on 40 meters band.

A Slinky-based doublet or loaded vertical QRP antenna tested for 40 meters band

Extension to an existing fan dipole originally modeled for 40 20 and 6 meters. This modification will add 80 15 and 10 meter bands.

A compact antenna for 160 meters, suitable for hams tha want operate top band buh have a limited space

A 5 band two element quad antenna working from 20 to 10 meters using hardware-store parts or modifying an existing commercial triband quad by KC6T

An inverted triangle Delta Loop Antenna for the 40 meter band made with aluminium pipes, each element is 14,2 meters including a home made aluminium mount.

A vertical antenna for 40 meters band by PA5MW

Schematic anc PCB for a fox hunting receiver for 80 meters band

40 meters band 5 watts transmitter, uses a 6L6 with a 6X5 rectifier and a 0D3 voltage regulator tube on the screen.

Crystal-controlled QRP tranceiver by F6BCU for 80 meters band 1W output

G0KYA Moxon antenna for 2 meters band

A Loop Fed Array Yagi antenna for 50 MHz featuring 11 dBi gain and 23 f/b ratio. In this excellent page the author even includes a detailed drawing in DWG format, with element lenght and spacing measures, in a separa file a full list of material list needed to build this yagi antenna including source and price, the EZnec file for this antenna plan, and a lot of pictures of this LFA Yagi for 50 Mhz. A ten page PDF file containing all infos, is also available to download.

In this project, you will make a simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator.

The page provides a project for an helical dipole for the 40 meters band, resonating on 7 MHz, created by PY1ZFK based on a design by DL8VO. It includes detailed instructions on building the antenna.

An optimized QRP transceiver for 40 meters band