A heating cooker for heating to process an object placed on a mounting base of a heating chamber including at least a single piece of a rod-like heater arranged along a face member forming the heating chamber and a heat shielding member provided along a longitudinal direction of the rod-like heater between the rod-like heater and the face member on an outer side of the heating chamber. More specifically, a programmable configuration register may be used to provide a mechanism for periodically scheduling requests associated with a hot-plug operation, such as initialization, rebuild, and verify requests. As opposed to using the absolute signal strength or power of an RF signal transmitted by a wireless node, implementations of the present invention compare the differences between signal strength values detected at various pairs of radio receivers to corresponding differences characterized in a model of the RF environment. The frame is preferably extruded.