Hybrid double quad array, these antennas can be dimensioned for any frequency

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40 meter dx the twin half-square array
A simple half-square antenna for 40M is cheap and easy to build

2 Element Vertical Array for 160M and 80M
project I wanted to erect two 40-meter stand-alone verticals

3-Element 160-Meter Array at
upgrade the 160-meter antenna system

4 Square Antenna in theory and practice
It is an antenna system which

Verticales 40m en phase
start by constructing 2 identical quarter-wave bazooka verticals Center frequency: 7.050 MHz Radials: system made up of 4 radials 2m above the ground

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 60 m| 80 m| 160 m| 136 khz| 630 m|
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