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Antena doble Bazooka para VHF
Antenna built with coaxial cable, measures from the formula 158.9 / F, total length, 99.6 / F length of the coaxial cable
post 24 Aug 2024
Antenna for UHF VHF Links →
3 Stacked Yagi Antennas
The use of three antennas often represents a good compromise between increased antenna gain, mechanical feasibility, and satisfactory handleability
432Mhz Quagi,
This Quagi is optimized for 432.2Mhz operation, however it works well in a quite wide range of frequency
5 Element-Yagi fur 145 MHz
Boom Length 1705 mm, Elements diameter 8-10 mm, hollow material they are obstructed by the boom, adjustment stub range length from the central arm to the collection clamp 175-200 mm diameter of aluminum tube from 6 mm distance between stub and radiator 15 mm
10 Element for 432 MHz Winkler Antennen
The elements have direct connection to the supporting boom by a metal ring where on either side one half of the element is screwed
70cm 10-element uhf yagi
Adjust lenght of the dipole if needed important,you can also use a folded dipole with a 1:4 balun
155
The use of three antennas often represents a good compromise between increased antenna gain, mechanical feasibility, and satisfactory handleability
This Quagi is optimized for 432.2Mhz operation, however it works well in a quite wide range of frequency
Boom Length 1705 mm, Elements diameter 8-10 mm, hollow material they are obstructed by the boom, adjustment stub range length from the central arm to the collection clamp 175-200 mm diameter of aluminum tube from 6 mm distance between stub and radiator 15 mm
The elements have direct connection to the supporting boom by a metal ring where on either side one half of the element is screwed
Adjust lenght of the dipole if needed important,you can also use a folded dipole with a 1:4 balun
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal