Pulsed interval radio calibration

A wireless device comprising:

• an antenna;
• Radio Frequency (RF) circuitry coupled to the antenna and operable to receive a baseband signal, to convert the baseband signal to an RF signal, and to couple the RF signal to the antenna;
• baseband processing circuitry coupled to the RF circuitry, the baseband processing circuitry operable to:
• produce the baseband based upon calibration operations;
• and
• perform the calibration operations over a plurality of calibration time periods, each calibration time period divided into a plurality of first interval portions interspersed with a plurality of second interval portions, for each calibration time period of the plurality of calibration time periods:
• apply respective calibration settings:
• during the first interval portions apply substantially fixed first current input to at least one gain adjustable element of the RF circuitry;
• during the second interval portions apply varying current input to the at least one gain adjustable element of the RF circuitry;
• and
• measure output levels of the RF circuitry over the calibration time period;
• and
• select calibration settings for subsequent use based upon the output levels.