Answer:
1. PRI: The chip that controls the radio frequency waves within a device
Explanation: A chip or device that is used to control the frequency on the devices is called Primary Rate Interface (PRI).
2. Baseband: A list of radio frequencies
Explanation: Base band is the list frequency that is used for transmission of the signal before modulation
3. PRL: The connection between a mobile device and radio tower
Explanation: It is known as preferred roaming list, that is used to store the information about mobile devices that are connected to the tower.
