Thank you, JimB.
Q1:
JimB said:
there would be no advantage in doing so.
Why wouldn't there be any advantage? If you are using only a single sideband transmission then you are effectively saving half of the usually required bandwidth. Please help me with it.
Q2:
It says
here that noise is interference generated by by lightning, motors, automotive ignition systems, and any power line switching that produces transient signals.
During lightning a static charge is built up and ionization of the atoms take place. In case of ionization, electrons are transferred from one atom to other (electrons jump from shell to another, and from one atom to another) and this is accompanied by emission of electromagnetic radiation and this radiation is what interferes with the signal. If my understanding is not correct, please help me.
Something similar happens in case of automotive ignition systems where the spark of a sparking plug functions as a mini lightning bolt.
But what really happens in case of motors and power line switching. Perhaps it has something to do with inductive effect.
For an inductor, when the switch is closed, no current passes through it for a moment but maximum voltage appears across the inductor.
Then the voltage starts decreasing and current starts increasing. Magnetic flux would also increase along with increasing current. When voltage across inductor has reached zero value, the current and magnetic flux have reached their maximum values. The inductor stores its energy in its magnetic flux.
Could you please help me with this? Thanks.
Regards
PG