A low power receiver, comprising: an antenna comprising at least one antenna; a resonant circuit comprising at least one resonant circuit; and, a nonlinear device, wherein said antenna forms said resonant circuit or a part of said resonant circuit, or is directly or indirectly coupled to said resonant circuit, said antenna and said resonant circuit being tuned to receive a first high frequency carrier of a predetermined first frequency F1 and a second high frequency carrier of a predetermined second frequency F2 simultaneously, which differ from each other by a predetermined intermediate or baseband frequency Fout = |F2 - F1|, wherein said nonlinear device is directly or indirectly connected to said resonant circuit in a manner to allow for generation of a intermediate frequency signal or said baseband signal, respectively, of frequency Fout, wherein said low power receiver is adapted to operate according to a heterodyning principle of down converting a high frequency signal to said intermediate frequency signal or said baseband signal, respectively, by mixing said first high frequency carrier and said second high frequency carrier to thus regain said intermediate frequency signal characterized in that the receiver is configured to receive at least two pairs of high frequency carriers (402,404), wherein the high frequency carrier pairs (402, 404) carry the same signal information and a first pair of high frequency carriers having a difference in frequency, which is equal to a difference in frequency of a second pair of high frequency carriers to form only one intermediate frequency signal or baseband signal as a heterodyning of each of the at least two pairs of high frequency carriers. an antenna comprising at least one antenna; a resonant circuit comprising at least one resonant circuit; and, a nonlinear device, wherein said antenna forms said resonant circuit or a part of said resonant circuit, or is directly or indirectly coupled to said resonant circuit, said antenna and said resonant circuit being tuned to receive a first high frequency carrier of a predetermined first frequency F1 and a second high frequency carrier of a predetermined second frequency F2 simultaneously, which differ from each other by a predetermined intermediate or baseband frequency Fout = |F2 - F1|, wherein said nonlinear device is directly or indirectly connected to said resonant circuit in a manner to allow for generation of a intermediate frequency signal or said baseband signal, respectively, of frequency Fout, wherein said low power receiver is adapted to operate according to a heterodyning principle of down converting a high frequency signal to said intermediate frequency signal or said baseband signal, respectively, by mixing said first high frequency carrier and said second high frequency carrier to thus regain said intermediate frequency signal characterized in that the receiver is configured to receive at least two pairs of high frequency carriers (402,404), wherein the high frequency carrier pairs (402, 404) carry the same signal information and a first pair of high frequency carriers having a difference in frequency, which is equal to a difference in frequency of a second pair of high frequency carriers to form only one intermediate frequency signal or baseband signal as a heterodyning of each of the at least two pairs of high frequency carriers.