| 摘要 |
<p>The invention relates to a heterodyne receiver, preferably for multi-channel reception, in particular for the reception of optical signals, where the received signal is mixed with an oscillator signal of an oscillator in a mixing stage to generate an intermediate frequency in an intermediate frequency stage (ZF stage). According to the invention, it is provided that the frequency (fLO) of the oscillator can be tuned discontinuously in steps (Sp 1, Sp 2) and the intermediate frequency stage can be tuned continuously. <IMAGE></p> |
