Assertion: radio spectrum | /r/CapableOf | become congested
Facets:
value: increasingly
type: DEGREE
value: in recent decades
type: TEMPORAL
Source sentences:
text: Because it is a fixed resource which is in demand by an increasing number of users, the radio spectrum has become increasingly congested in recent decades, and the need to utilize it more effectively is driving modern telecommunications innovations such as trunked radio systems, spread spectrum, ultra-wideband, frequency reuse, dynamic spectrum management, frequency pooling, and cognitive radio.
text: So although the radio spectrum is becoming increasingly congested, there is little prospect of additional frequency bandwidth outside that currently in use becoming available.