If your scope is sync'd to the modulation's frequency, then you should see that each cycle of the carrier has a different amplitude caused by AM modulation of the carrier.
The envelope is the voltage tips of the modulated carrier. The "bubble" is an imaginary line that connects the carrier's tips so that the modulation is seen easier.
You won't see sidebands nor any waveform that is outside the carrier frequency unless a real-time- swept-frequency-display is used on the scope, just like the pics in articles in Google.
If the carrier is modulated and filtered as a single sideband or as a suppressed-carrier signal then the scope's display will look different, just like the pics in articles in Google.
The envelope is the voltage tips of the modulated carrier. The "bubble" is an imaginary line that connects the carrier's tips so that the modulation is seen easier.
You won't see sidebands nor any waveform that is outside the carrier frequency unless a real-time- swept-frequency-display is used on the scope, just like the pics in articles in Google.
If the carrier is modulated and filtered as a single sideband or as a suppressed-carrier signal then the scope's display will look different, just like the pics in articles in Google.