"01461646-v"^^ . "0"^^ . "combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two"@en-us . "201002760"@en-us . . "0"^^ . . . "heterodyne"@en-us . . "201420087"@en-us . . "201461646"^^ . . . "heterodyne"^^ .