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2 x 5 Element Yagi array for 144MHz
A 2 x 5 antenna may have similar basic gain to say a well made 10 element long yagi but with slightly different distribution of azimuth and altitude
post 10 Aug 2024
Antenna for UHF VHF Links →
A 70cm Big Wheel Antenna
This is a 70cm big wheel antenna which is needed for our beacon
AIS Antenna
The AIS signals are sent on two frequencies near 162-MHz, the upper end of the VHF Marine Band. Most commercially made antennas for the VHF Marine Band are omnidirectional verticals, and their gain is limited
Antenna Yagi 7 elements 403 Mhz
This antenna, designed with the help of Yagi-Calculator, a small and very practical program, was created in 4h30
Antenna for 2mt Yagi vhf 9 element
Antenna yagi 9 element Band 144-146 MHz gain 11 dB
Antenna Log-periodica Dual Band
The antenna belongs to the category of directional and broadband antennas
150
This is a 70cm big wheel antenna which is needed for our beacon
The AIS signals are sent on two frequencies near 162-MHz, the upper end of the VHF Marine Band. Most commercially made antennas for the VHF Marine Band are omnidirectional verticals, and their gain is limited
This antenna, designed with the help of Yagi-Calculator, a small and very practical program, was created in 4h30
Antenna yagi 9 element Band 144-146 MHz gain 11 dB
The antenna belongs to the category of directional and broadband antennas
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