Homebrew 40m 7 MHz antennas for amateur ham radio


This is a list of designs for any type of 40m 7 MHz homebrew amateur antenna

To refine your search to show only vertical, loop, wire, portable, multiband etc. click refine search for homebrew antennas

Showing matches 1 to 10 of 48


The Double Bazooka Dipole is a very efficient single band antenna which is very quiet and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends.

The $4 Special Antenna

Sure, you can find "all-band wire antennas" for sale in the back pages of Ham magazines costing $150 or more. But beware
: Marconi spins in his grave every time a ham buys an aerial instead of building it. The plain and simple truth is that wire antennas for the HF bands were intended to be hand-made and not store-bought.

Untold generations of intrepid Radio Hams have fashioned their own equipment out of spit and bailing wire. Do you think the spark-gap dudes of the 1920's just went out and bought ready-built G5RV's from HRO or AES? No way! They slapped together aerials out of bedsprings, chewing gum, and frozen cow poop. For them, every day was Field Day. I think that home-built antennas should be awarded 10 db of "honorary gain" simply by virtue of their ingenuity. And in this world of microprocessor controlled micro-rigs, constructing one may be your only chance to build something and actually see it work on the air. Think about it.

Australian Broadband Dipole 2MHz o 30MHz with no ATU

A dipole can be modified by inserting resistive loading networks so as to produce standing waves between the feedpoint and the networks. The authors have, by adjustment of the networks and the dipole sections, developed a travelling wave dipole whose VSWR is less than 2:1 from 3 to 15 MHz and does not exceed 2.6 to 1 from 2.3 to at least 30 MHz.

The Fence Fan Dipole

A Quick, Easy and Inexpensive Multiband Antenna By W6HDG

Skywire Loop Antenna

In we ham radio operators' continual quest for the perfect antenna system, we try some strange things at times, but often, the simplest is also the best. That is certainly the case with the basic "loop" antenna, an often misunderstood critter, but one that gives absolutely the most for each foot of wire of any antenna I have had occasion to play with.

First, let me reassure you that such an antenna does not necessarily take much room. One reason I went to one in the first place is because I didn't have room for a 260-foot-long dipole for 160 and I wanted to give the "top band" a try for the first time in my 45 years of being a ham. If you are talking 75 meters (and up if you
want a multi-band antenna...more later on that), it's only about 65 feet on a side in a square arrangement

9 band vertical HF antenna

Simple vertical radiator with a not so simple matching box. No traps, no tuner required.

Portable Magnetic Loop Antenna for 20m, 30m, 40m

A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible.

K3MT presents the GRASSWIRE - another approach to hidden HF antennas

Deed restrictions got you down? Neighbors intimidating your tower plans? Need a really easy portable HF antenna? Then
the grasswire may be the answer! Virtually invisible, lightweight, and compact (you can carry one in your hip pocket),
this antenna works! It has been used by K3MT in various installations for more than 10 years.

HB9ABX RoomCap Antenna

Yet another new, revolutionary design which allows the construction of small
HF antennas which provide the same efficiency as large antennas.

(Maybe but probably not !!! - G6KIZ)

This antenna can be built for all HF bands, from 10 to 80 m.


Are you looking for an inexpensive wire antenna that makes possible HF operation on all bands 10M through to 80M with wide bandwidth? This Delta Loop is a threesided antenna suspended high in the air by vertical supports such as tall evergreen trees. Recommended height is 40 feet or more at highest point but higher is better. It's one feed line eliminates the need for multiple antennas to cover the HF bands.

More results

Fresh search

 Leave a Reply