40 Meters Vertical

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40 Meters Vertical

This shortened easy-to-build vertical, with no-radials, is made from surplus military

post 28 Jan 2024

40 Meters Vertical

Antenna 40 Meter Links →

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Quarter-Wave Vertical Antenna Length Calculator
a quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation

High Performance 40 Meters Vertical
This shortened easy-to-build vertical, with no-radials, is made from surplus military

Multi dipoles Indoor
Solution of multidipole in the attic

CB modified antenna for the 12m band CB modified antenna for the 12m a quarter of a wave

Antenna Half Sloper Multiband 1.8, 3.5, 7, 14, 21, 28 MHz I made about 25,000 QSOs on it mainly in international contests - in 1.8, 3.5, 7, 14, 21, 28 MHz bands. The antenna also works effectively in WARC bands

A Three Element Hex Beam for 50 MHz This is a hex beam for six meters.It has three elements with a turning radius of 54 inches

DHD Double Half Delta This is a dhd double half delta in theory it should return a low signal but with a good s - n ratio roughly like a beverage

30 meter full quarter wave vertical A view of the antenna and stand from a few feet away. You can't see the radials but they are there. There are four of them spaced 90 degrees apart and about a 10 to 15 degree slope. The antenna has about a 1.2-1 SWR on 30 meters. Notice the trees in the background. Does it look like the wind is blowing? It is as is usually the case out here

Antenna Broadcast Bands

Antenna Broadcast Bands Guide to the different types of antennas for shortwave radio broadcasting

Moxon Rectangle PMR 446 MHz

Moxon Rectangle 446-mhz Questo tipo d'antenna e' mutuato direttamante da una Yagi col vantaggio del minore ingombro e della maggiore robustezza meccanica

Building A High Voltage

Building A High Voltage I stumbled on an article by a german ham and materials engineer