An example of a radio frequency (RF) transmitter system for communication
may include a transmit pre-distortion module configured to provide a
second transmit calibration signal during a transmit calibration mode
based on a first transmit calibration signal and one or more transmit
calibration adjustment signals. The one or more transmit calibration
adjustment signals may include an offset parameter associated with DC
offset and an imbalance parameter associated with at least one of gain
and phase imbalances. The system may include a transmit channel frequency
converter coupled to the transmit pre-distortion module. The transmit
channel frequency converter may be configured to provide a fourth
transmit calibration signal during the transmit calibration mode based on
a third transmit calibration signal and a transmit reference signal.