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PRL

PRI

Baseband

The connection between a mobile device and radio tower

The chip that controls the radio frequency waves within a device

A list of radio frequencies

Baseband: The chip that controls the radio frequency waves within a device, is a range before to become in a different frequency range, for example, an audio frequency when is transmitted is a radio frequency.

The Preferred Roaming List (PRL) is a list of radio frequencies, and a database there residing in a wireless device like a cellphone.

PRI The chip that controls the radio frequency waves within a device.