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Swiss Quad 2 Elements 144 MHz Antenna


Detail of gamma match diet,The core of the RG58 is soldered to two 15 pF capacitors in parallel, which are themselves soldered to the gamma match. The coaxial braid is welded to the copper tube,A layer of varnish protects the capacitors from moisture.
post 18 Dec 2021


Antenna for UHF VHF Links

163



Homebrew antenna VHF
You build a 1/4 wavelength groundplane antenna

L'antenne colineaire
All elements are connected to the boom directly NOT isolated from the boom, you may mount them on top of the boom or trough the boom

L'antenne Lindenblad
The Lindenblad antenna has ideal features for receiving transmissions from moving satellites during very low passes on the horizon.

Laptop Mini Wireless Antenna
The size was chosen so it could be housed inside the tube of an old pen, to provide rigidity and protection to the antenna

Log per. 144-1,2GHz
Log periodica 144-1,2 GHz ricavata da un'antenna televisiva Fracarro LP345HV

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