Etstream Antennas Coax Switch Dipoles/Dipoles

A dipole can be modified by inserting resistive loading networks so as to produce standing waves between the feedpoint and the networks

The folded dipole antenna consists of a basic dipole, but with an added conductor connecting the two ends together

Off-Center-Fed Dipoles with 80, 40, 30, 20, 15 10 m coverage. The capacitor C shortens the dipole for 80 m actually 75 m band resonance, whereas the coil lenghtens the dipole for 30 m

A variation of the dipole is an antenna called a folded dipole. It radiates like a dipole but sort of looks like a squashed quad

A coaxial dipole, it is very different to a conventional dipole, it incorporates a balun and is almost like having two quarter-wave dipoles connected side by side

Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs, the Off-Center-Fed Dipole which I prefer to call a WINDOM is a Dipole whose feedpoint is at a point removed from the center of the antenna

The dipole is half the size of the usual full sized versions and is therefore about the size of a ten metre dipole

The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole

Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters

The All Band HF Doublet is often referred to as a random length dipole as it is generally as long as the available space within reason, but here are a couple of limitations to the ultimate dipole length

One fan dipole was for 75/40/20 and the other was for 20/15

The dipole antennas for reception or transmission for the fm band 88-108 mhz are normally 75 ohm impedance

The inverted dipole is a very popular antenna. It's also known as a Inverted "V" antenna. The inverted antenna is a horizontal dipole with the ends tilted down to the ground,the angle between the two legs us usually between 90 and 120 degrees

Is a three band sloping dipole. It is basically three dipole antennas fed with one common coax cable and designed to operate on 12, 17, and 30 meters

A dipole has about 3dB gain over a quartre wave antenna, is why my preference went to a simple dipole

Indoor multiband dipole 40m -10m-15m dipole

A folded dipole is a dipole antenna with the ends folded back around and connected to each other, forming a loop

The dipoles are generally half wavelength antennas, these are calculated using the following formula: Total dipole length = 142.5 / F (MHz)

The dipole is mounted with its centre over the top of my new tower, the top is 11.5m and the ends of the two dipole legs are about 6-8m above the ground

Remote Controlled QTH
Beverages 400m long

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