Din cablu coaxial se realizează o bobină de 20 spire, cu diametrul spirelor 100 mm, iar la un capăt al bobinei, atît conductorul central, cît si cămaş metalică se conectează la cămaşa metalică a buclei, astfel încît distanţele de la jumătatea bobinei pînă la locul lipirii să fie egale.
La mijlocul bobinei cablul se curăţă de învelişul exterior pe o distanţă de 3—4 cm şi, la conductorul central al cablului, ca şi la una din cămăşile metalice, se lipesc conductoarele ce fac legătura cu antena.
Ansamblul general al bobinei este prezentat în fig. 74, iar modul de conectare la antenă, în fig. 75.
Bobina descrisă asigură conectarea cablului coaxial asimetric la antene simetrice de aceeaşi impedanţă şi posibilitatea de lucru în gama de frecvenţe cuprinse între 10—30 MHz, respectiv benzile de radioamatori de 14, 21 si 28 MHz. Acest dispozitiv de simetrizare a fost realizat şi experimentat de radioamatorul DL1UX.
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