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An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters

Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe. The document provides a brief guide on building a compact dipole antenna appropriate for the 40, 80, and 160-meter amateur radio bands. It explains the materials, building processes, and tuning methods required to provide best performance while preserving space. The paper also discusses theoretical elements of dipole antennas, such as impedance matching and feedline selection.

A modified 20 meter double zepp wire Operating Bands: 40 thru 10 meters (with tuner), basic construction and performance information.

The web page provides detailed information on a portable 10/20/40 meter vertical antenna designed for mobile operations, including modifications for 20 and 40 meters. It includes images and descriptions of the antenna setup in a car. The content is useful for amateur radio operators looking to enhance their mobile communication capabilities.

Home made vertical antenna for 80 40 15 10 meters ARRL PDF file taken from QST June 1978

Vertical antenna for 40 meters band

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.

Homemade 40 through 6 meter HF portable multiband antenna, an aluminium antenna construction article, with plan, drawings and photos

A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.

A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole.

The page provides a project for an indoor wire antenna for the 7 MHz band, based on a design by F6CYV. It aims to help amateur radio operators lacking space to set up an antenna for 40 meters. The author shares their experience using the antenna inside an apartment, noting good reception of European signals and contacts with over 150 countries. The project details the materials and dimensions needed for the antenna, along with tips for optimal performance.

A reduced-size 80-meter antenna designed for small lots, portable use, and a fine companion for QRP

Excellent Quad Antenna projects for 40 20 17 12 10 and 6 meters band in this pdf file project by Pfeiffer Maltese. The Pfeiffer Maltese Quad Antenna System takes on the structural challenges of traditional cubical quad antennas using a linear loading approach to reduce size while preserving performance. Andrew Pfeiffer created the pattern, which resembles a Maltese cross and enhances endurance in tough conditions. The system progresses through numerous configurations, from the 4-spreader Maltese Quad to the 16-spreader Maltese Quadruple-Cross, greatly lowering antenna size while retaining efficiency over several bands, including 12 to 40 metres.

This is a custom home made antenna, based on concept of commercial HF antennas, that may work on 160 meters too.

Short dipoles and verticals for 160 80 and 40 meters

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

GM4JMU shortened dipole for 40 meters band. This article illustrates in detail how to build a resonant antenna for 7.030 MHz. Cut two 10.25-meter pieces of insulated wire, wind 40 turns of wire onto plastic tubing, and connect the wire to a central insulator using a choke balun built of RG174AU coax and a ferrite toroid. Once built, the antenna is adjusted by altering the wire length to produce the lowest Standing Wave Ratio (SWR) for best performance. The guide emphasizes careful building and adjustment for the best results.

HF Windom antenna, cover 80, 40, 20 15, and 10 meters, antenna design

Originally planned as an 80/160 Beverage, this antenna is a terrific performer on 40 and 30 meters

The RXO unitenna pdf file a vertical antenna for 40 to 15 meters band

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

A short but efficient dipole for 40 meters band

Based on HB9CV, F6ITV decribes how build a swiss quand antenna for 28 and 50 Mhz.

Build your own multiband W3DZZ antenna resonating on 80 40 20 15 and 10 meters band

Practical contruction and designing notes of a delta loop for the 40 meters band

A G5RV plan for 10-160 meters, 10-40 and 10-80 meters band

40 and 20 meters mobile antenna

A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures

This is a low cost homebrew two band travel antenna for 20 and 40 meters. It is based on the B&W Travel Antenna concept with a telescoping whip and a loading coil

Quad Antennas by CUBEX, Cubex currently offers Cubical Quad antennas for 2 meters through 40 meters.

A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV

A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations

K9CZB QST article about sloper antenna project for 40 and 80 meters band

A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It's compact, light, economical and doesn't need any radial.

A 40 meters band full wave antenna project plan with model, adding the Missing Leg to the Inverted-L Antenna

A coil loaded dipole antenna for 40 and 80 meters band by I2CN

The multi band HF loop antenna, a good performer on 80 and 40-10 meters. This excellent article covers all aspects of designing a resonant loop antenna, examining gain and radiation patterns, and describing practical notes on how to build this antenna.

PE3HMP project of a triband wire antenna for 40 20 10 meters band, made using home made coils

Shortwave radio receiving antenna experiments, on 30 and 40 meters band with pictures, schematics and descriptions.

Drawings pictures and notes on a rotary dipole antenna for 30 and 40 meters band

One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx

2el 40Ft front to back spacing 80 meters Quad antenna

40 meters band Delta loop antenna plan that is vertically polarised

A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for 160, 80, 40 or 30 meters. It can't get simpler than this. It has very few parts, costs almost nothing, and it works! Cost estimate $10 by VE6WTF

A double bazooka antenna plan for the cw portion of the 40 meter band

A modified EDZep for 20 meters, Yagi, Zepp Beam, Dual Dipole, Space Restricted 80 meter wires. Operating Bands: 40 thru 10 meters with tuner

The Bruce array is a simple, often-forgotten wire antenna array that is advantageous for 80 and 160 meters, where typical gain antennas are very large. This bi-directional broadside vertical array is only 1\4 lambda high and does not require a ground system. It offers substantially greater SWR bandwidth than the half-square or bobtail curtain. A 4-element Bruce array used by N6LF showed a gain of about 4.6 dB compared to a 1\4 lambda vertical with 8 elevated radials, with a 2:1 SWR bandwidth greater than 400 kHz. The antenna is simple and its dimensions are flexible.

A bazooka antenna project for the 7 Mhz, includes dimension for to homebrew your own bazooka for HF bands

This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.

Manual for R7, 10 12 15 16 20 30 40 meters band antenna