What are the applications of SSB-SC modulation?
Amplitude modulation is one way to carry information on a
carrier, such as a
radio signal. Another way is FM (Frequency Modulation). While FM
offers greater
clarity for audio, and the higher frequencies that FM use offer
a wider
bandwidth, allowing for more information to be transmitted, one
application
where FM and digital are not suitable are Aviation
communication, which to this
day still use AM analogue. This is because weaker signals can be
heard over
stronger, closer ones with AM, allowing for emergency
transmissions to have
more chance of being heard over other traffic. Also, AM uses a
narrower
bandwidth than FM, allowing more users in a smaller space. This
is important for
the lower frequencies of Radio, where space is at a premium (ie
shortwave
bands).