Question: What is the primary cause of Out of Band (OOB) emissions in a transmitter, according to the 3GPP specification?
Option 1: Impulse noise from the receiver
Option 2: Non-linearity in the transmitter and modulation process
Option 3: Intermodulation distortion from multiple carriers
Option 4: Phase noise from the local oscillator
Explanation: Out of Band emissions are primarily caused by non-linearity in the transmitter and the modulation process, as stated in the 3GPP specification. This is because non-linearities in the transmitter can generate unwanted frequency components outside the assigned channel bandwidth, resulting in OOB emissions.