The AQA A-level Physics Paper 3B (June 2022), Option E (Electronics), covers operational amplifiers, logic gates, modulation, and communication systems. Key topics include determining voltage gain, Boolean expressions, truth tables, and frequency modulation advantages. The paper addresses Schmitt trigger oscillators, pulse rate frequencies, and mark-to-space ratio adjustments. It evaluates fibre optic and satellite communication solutions for remote locations, focusing on signal reliability, bandwidth, and practical implementations. Keywords: AQA Physics, electronics, operational amplifier, logic gates, frequency modulation, Schmitt trigger, fibre optics, satellite communication.