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UHF-VHF Yagi Construction
These optimized wide-band antennas offer up to 16 dBi gain and 30 dB F/B ratio when mounted at 20 feet over average
post 20 Dec 2024
Antenna for UHF VHF Links →
The simplest FM antenna
The J-pole antenna, is a vertical omnidirectional transmitting antenna used in the shortwave frequency bands
ntenna HB9CV 3 elementi 402 MHz
Il guadagno di quest'antenna e' sufficiente per la caccia in fase finale
UHF Portable Yagi AntennaThis four elements Yagi for 430-440Mhz, to use it this summer in portable operation
Diamond F23 Antenna FailureProblem the Diamond F23 antenna to the top of the a small disc ceramic capacitor
2m and 70cm Colinear Flowerpot antenna
Is an end-fed half wave antenna for 2m made from nothing more than RG58 coax and 25mm PVC pipe. With the addition of some tinfoil and sticktape, it can double as a 70cm colinear
150
The J-pole antenna, is a vertical omnidirectional transmitting antenna used in the shortwave frequency bands
Il guadagno di quest'antenna e' sufficiente per la caccia in fase finale
Is an end-fed half wave antenna for 2m made from nothing more than RG58 coax and 25mm PVC pipe. With the addition of some tinfoil and sticktape, it can double as a 70cm colinear
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