RX KF-owca DK3FQ - Transformator w.cz. i BF520

[SP6VGX]

no to wychodza okolice 18 - 20MHz

tak na szybko liczac w matlabie

Kod:

clear all;
c0 = 33e-12;
c1 = 470e-12;
c2 = 1e-9;
L = 2e-6;

CZ = 1 / (1/c0 + 1/c1 + 1/c2);

f = 1 / (2*pi*sqrt(L*CZ));

format longg;
CZ / 1e-12
f / 1e6

Kod:

ans = 29.9126342789917 (CZ - pF)
ans = 20.576798427987 (f - MHz)