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Construction of a qrp 23cm hb9cv antenna
HB9CV antenna my own 23cm version using brass for the boom and radiating elements
post 09 Feb 2024
Antenna 23cm 1.2 GHz Links →
A Homebrew Yagi for 1296 MHz DX
As none of the versions satisfied me I could not find a fast solution and started my own design by building countless prototypes and making gain measurements in free space
An interdigital filter for the 23cm band
Build a band-filter for the 23cm band, the following drawing of an nterdigital filter
Analysis of the G3LTF Dual Band Feed for 23cm and 13cm
The feed is a combination of two proven designs, an EIA dual-dipole feed for 23 cm
Antenna a pannello per i 24cm - 1240
Antenna per la banda ATV dei 1240 MHz la struttura e' basata su 3 pannelli disposti a 120° tra loro
Antenna SBFA Short Back Fire Antenna
Si tratta di una sorta di parabola per la banda 1200 MHz 23 cm e 2400 MHz 13cm
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As none of the versions satisfied me I could not find a fast solution and started my own design by building countless prototypes and making gain measurements in free space
Build a band-filter for the 23cm band, the following drawing of an nterdigital filter
The feed is a combination of two proven designs, an EIA dual-dipole feed for 23 cm
Antenna per la banda ATV dei 1240 MHz la struttura e' basata su 3 pannelli disposti a 120° tra loro
Si tratta di una sorta di parabola per la banda 1200 MHz 23 cm e 2400 MHz 13cm
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 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
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo