1. (adjective) responding to or operating at a wide band of frequencies

• wideband

1. (adjective) of or relating to or being a communications network in which the bandwidth can be divided and shared by multiple simultaneous signals (as for voice or data or video)

• electronic network
• network

2. (adjective) responding to or operating at a wide band of frequencies

• frequency band
• frequency band
• waveband
• waveband