FIELD: radio engineering and communications.
SUBSTANCE: invention can be used in receiving system, particularly in a receiver which receives an OFDM signal of DVB-C2. Receiving device includes a demodulation unit configured to convert a received signal to a baseband signal when a first frequency differs from a second frequency, wherein first frequency is a centre frequency in a band of received signal, second frequency is a centre frequency in a band of a desired signal included in a part of band of received signal, and a constant component of baseband signal is to be a frequency in vicinity of second frequency.
EFFECT: improved characteristics of reception in case of receiving a signal with variable frequency range.
75 cl, 27 dwg
