Hits
Antenna Build a 2m 8db collinear
I started to build the antenna by cutting four lengths of wire, the measurement is 38.75ins for a half wave @ 145mhz but I cut them at 39.75ins to compensate for the joints
post 03 Jun 2024
Antenna for UHF VHF Links →
2 Meter antenna cycloid dipole
The 6 and 2 meter cycloid dipoles, note the rain shield covering the rear portion of the matching sections along with the 1/2 wave coaxial cable delay line comprising the 200 ohm balun on each antenna
Yagi LFA 9 elementi per i 2 metri
Yagi lfa loop fed array per i 2m, con boom da 4.6m. l'antenna e' composta da elementi direttori e riflettori come le normali yagi
Matching transformers for 3 stacked yagi
Using three antennas often provides a good compromise between increased antenna gain
150
The 6 and 2 meter cycloid dipoles, note the rain shield covering the rear portion of the matching sections along with the 1/2 wave coaxial cable delay line comprising the 200 ohm balun on each antenna
Yagi lfa loop fed array per i 2m, con boom da 4.6m. l'antenna e' composta da elementi direttori e riflettori come le normali yagi
Using three antennas often provides a good compromise between increased antenna gain
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