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40m Compact 4-Square Antenna


Compact 4-Square Antenna – EA5AVL The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band
post 28 Jan 2024
40m Compact 4-Square Antenna

Antenna Vertical Links

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4 Softrock v6.2 receivers in parallel to facilitate phased antenna, K1LT
I've designed a circuit board for 4 Softrock v6.2 receivers in parallel to facilitate phased antenna studies

7 mhz vertical monopole
7 mhz vertical monopole high efficiency half wave vertical radiator fisical lenght 8

A 90 foot Irrigation Tubing Vertical
For the past couple of years I have been experimenting with making vertical antennas out of aluminum irrigation tubing.The most frequently asked question I get about this is: how do you raise the thing?


Noise suppression with X-phase II

Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible

The K9AY loop antenna for 160 and 80m bands

The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna

Microphone boom headset for the FT-897

Microphone boom headset for the FT-897 Boom length m. 5.24-fiberglass spreaders m. 2.95-loops dimensions m. 2.00 x 4.27 with 5.00 m