Small chambers shielding effectiveness measurement

The article concerns problems connected with measuring shielding effectiveness of small shielded chambers. In the article the measuring procedure and the position for measuring shielding effectiveness of small shielded chambers have been described. Particular attention was paid to maximization of dynamics in measuring attenuation of shields through minimization of noise level in measuring receiver obtained as a result of narrowing the RBW filter of intermediate frequency and through averaging the received noised test signal.