Complex sentence: Obvious jamming is easy to detect as it can be heard on the receiving equipment, it is some type of noise such as stepped tones (bagpipes), random-keyed code, pulses, erratically warbling tones, and recorded sounds.
Split into simpler sentences: Obvious jamming is easy to detect as it can be heard on the receiving equipment. It is some type of noise such as stepped tones (bagpipes), random-keyed code, pulses, erratically warbling tones, and recorded sounds.