I am going to try a convoluted connect round. The next N questions will be connected to a theme. Slightly convoluted, but easily deducible.

Many people falsely think that the first letter of the last names of these three men (in order) lead to the name of this popular hobby. In reality, it came from a pejorative term like n00b. What are we talking about?

Cracked by: Sumanth Patlolla , s m muneer ali and Dibyo

Answer:
HAM Radio – It is sometimes claimed that HAM came from the first letter from the last names of three radio pioneers: Heinrich Rudolf Hertz, Edwin Armstrong, and Guglielmo Marconi. However, this cannot be the source of the term as Armstrong was an unknown college student when the term first appeared.