Patent ID: 9544070
Date: 2017-01-10
CPC Classifications: H04B,H04L

Claim:
1. An apparatus comprising: an analog receiver configured to receive an input radio frequency (RF) signal and to convert the signal into corresponding I/Q values using a local oscillator frequency signal; analog to digital (A/D) converters configured to respectively convert the corresponding analog I/Q values into digital I/Q values; a digital processor, disposed downstream from the A/D converters, configured to process a resulting signal based on the digital I/Q values, wherein the digital processor comprises an adjustable filter configured to select a frequency band of the input RF signal, and a calculating unit configured to calculate at least one RF signal parameter from the I/Q values of the selected frequency band; a first signal interface configured to provide the at least one RF signal parameter; and a second signal interface configured to provide the digitized I/Q values for further RF signal analysis, and wherein the apparatus is configured to operate in one or more of a first operating mode consisting of a normal receiving mode involving an intermediate frequency, and a second operating mode consisting of a single receive band receiving mode involving a down-conversion to approximately zero hertz, and in the second receiving mode the adjustable filter of the digital processor is deactivated.