New message - Antenna Counterpoise
A coil-loaded counterpoise at a low height above ground is used to
provide an artificial ground for an antenna when, for some reason, a
true ground connection is not possible or there is not enough ...
Entraide > Radio > Radio Amateur
New Program RJELOOP4
This program predicts approximate performance of general purpose,
multiband, horizontal loop antennas of given perimeter of loop. It is
not intended for precision predictions of operating data.
...
Entraide > Radio > Radio Amateur
La Levy - suite 2
From: F6AEM@F6KDS.FRPA.FRA.EU
>>>> par rapport au diamètre).
En multibande 14/21/28 MHz, on préfère 31,10 mètres (102 feets).
Raccourcir si montée en V inversé.
Le stub est une ...
Entraide > Radio > Radio Amateur