For dental and facial imaging, a source of x-rays or other penetrating radiation and a detector are mounted opposite one another on a rotatable gantry, so that the head of the patient can be positioned between the source and the detector, with the axis of rotation of the gantry passing through the patient’s head. Incoming and outgoing queues may be designed such that transactions tofrom one rope do not interfere with another rope. In some embodiments, a multicarrier transmitter generates RF signals for transmission using non-linear switching power amplifiers to amplify outphased switching waveforms allowing the multicarrier transmitter to operate more efficiently than some conventional multicarrier transmitters. The device may change, in response to the analysis, a configuration of at least one of the fixed wireless installations and at least one of the network devices. The second stage is a stage of the processing pipeline that specifies processing of a protocol-specific portion of the message.