Rotator
From GNU Radio
Makes a complex rotator block. The phase increment (in radians) is how much phase will be added to the input every value.
In the example below the phase increment is set to 0.01 radians and the sample rate is 100kHz, so that equates to 1000 radians every second, or 1000/(2pi) = 159 cycles per second. This corresponds to a period of about 6ms, as shown in the time sink.
Example Flowgraph.