One data stream is input to a radio frequency input terminal of a first receiver interface circuit, and the second bit stream is applied to an RF input terminal of a second receiver interface circuit. Apparatus comprises catheters having electrodes for targeting and affecting nerve tissue at a cellular level to reversible and irreversible nerve portion and incapacitation. Thus, when an alarm unit receives a reference synchronization pulse, the alarm unit applies the reference synchronization pulse as a reference point in time to trigger a series of flashes or audio tones. The light diffuser sheet is oriented relative to the OLED device so as to provide a selected diffusive property to light emitted from the OLED device. A printer configured to adjust gloss appearance of images is also disclosed.