23cms Quadrature hybrids

The critical dimensions are the case and line, I have had 30 lines cut with a laser cutter to better than 0.1mm tolerances and I am having some boxes milled from brass. All will be silver plated
post 13 Mar 2024
23cms Quadrature hybrids

Antenna 23cm 1.2 GHz Links


Building UHF Yagis A Practical
A detailed photo essay on how he builds his well designed UHF Yagi antennas

Construction of a 23cm double bi-quad antenna
I had half a spool of 2mm enamelled copper wire left over from my 12-turn helix, so this was soon bent into shape to make the element

Construction of a QRP 23cm HB9CV antenna
HB9CV antenna my own 23cm version using brass for the boom and radiating elements

Direttiva Yagi 10 elementi 23cm
Antenna per ATV, in 23cm una semplice yagi a 10 elementi

Double Quad
A description of a 9 dBd double quad and its calculations

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

Satellite Antenna Rotator Controller and TRACker

Satellite Antenna Rotator Controller and TRACker ARCTRAC is a portable integrated satellite tracking system

40m Compact 4-Square Antenna

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