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Antenna yagi 3 element
Example for F = 145 MHz2.07m, spacings = 2.07x0.25 = 51.7 cm, reflector fed 151/F = 1.04m, elements alimentes 143/F= 98.6 cm 2 times 49.3cm, director = 137 / F 0.945mm, or a Boom of 1.05m, impedence = 50 ohms, gain = 7 DBD, RAV-AR = 20 DB
post 14 Oct 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
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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
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Nightfire Electronics Source of small electronic kits and parts