Final answer:
To send an assignment, the information can be modulated and sent via analog AM or FM radio waves or as digital signals in binary format. AM varies wave amplitude, while FM varies frequency. Digital signals can be compressed and are less prone to interference.
Step-by-step explanation:
To transmit an assignment to your instructor using radio waves or digital signals, the information would be encoded through a process called modulation. Analog radio signals can be sent via amplitude modulation (AM) or frequency modulation (FM). With AM, the amplitude of the wave is varied to carry the information, while in FM, the frequency of the wave is modulated, keeping the amplitude constant. On the other hand, digital signals transmit data by converting information into a binary format, consisting of ones and zeros, which is less susceptible to interference and can be easily compressed to transmit more information.
Digital data is transmitted in the form of electromagnetic waves at radio frequencies as well. For instance, the binary data would be converted into an electromagnetic wave and sent via AM or FM frequencies, the same way music is transmitted to your car's radio.
For AM broadcasting, assigned frequencies range from 540 to 1600 kHz, whereas for FM, the range is 88 to 108 MHz. Each station operates at a specific frequency within these ranges, determined by international agreement, to avoid overlapping and interference of signals.