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Antenna double bands 144/432 mhz
L'elemento attivo e' un dipolo aperto. L'accoppiamento con la discesa è realizzato con il sistema hair-pin derivato dal Delta-match
post 03 Feb 2024
Antenna for UHF VHF Links →
Stacking Transformation
The ideal impedance transformation ratio are actualy ZL = 50 Ohm and ZI = 100 Ohm, but to get this ideal impedance transformation means that for TR, we must use a coaxial cabel with a Characteristic impedance Zo = 70.71 Ohm
Super facil antena vhf 1/4 onda
Antenna Ground plane (GP) has the property of receiving and transmitting in an omnidirectional way, that is to say everywhere equally
Super J-Pole Collinear
The antenna J is very simple in construction and has good results
T-match for vhf -uhf Antennas
The T-Match with its balanced feed point is one method of feeding a Balanced Dipole
Antenna Yagi 11 Elements
After using the charts according to DL6WU, the following values have been encoded for the calculation
155
The ideal impedance transformation ratio are actualy ZL = 50 Ohm and ZI = 100 Ohm, but to get this ideal impedance transformation means that for TR, we must use a coaxial cabel with a Characteristic impedance Zo = 70.71 Ohm
Antenna Ground plane (GP) has the property of receiving and transmitting in an omnidirectional way, that is to say everywhere equally
The antenna J is very simple in construction and has good results
The T-Match with its balanced feed point is one method of feeding a Balanced Dipole
After using the charts according to DL6WU, the following values have been encoded for the calculation
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