The frequency shift can be achieved by multiplying the band pass signal as given in equation x(t) = (u_c (t) cos 2 F_c t-u_s (t) sin 2 F_c t ) by the quadrature carriers cos[2 Fct] and sin[2 Fct] and lowpass filtering the products to eliminate the signal components of 2Fc.

• A. True
• B. False