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4el 21Mhz Yagi Antenna
This is a nice compact Yagi 21 Mhz beam. It has a short length boom which is made from a single piece 1.25inch square tube section
post 09 Feb 2024
Antenna 15m 21 MHz Links →
2 Eement. FOR 10-12-15MT
Poles are 5 mt length 21 mhz I use four bamboo poles for each element
3 Element Yagis Antennas for HF
Use the DK7ZB-match with 2x75-Ohm-coax for the 28-Ohm-Yagis and 2x50-Ohm-coax for the 12,5-Ohm-Yagis
Delta Quad
2 elements driven in phase inversion, single band for 15 m
25
Poles are 5 mt length 21 mhz I use four bamboo poles for each element
Use the DK7ZB-match with 2x75-Ohm-coax for the 28-Ohm-Yagis and 2x50-Ohm-coax for the 12,5-Ohm-Yagis
2 elements driven in phase inversion, single band for 15 m
Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible
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
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo