Hz with wider bandwidths giving faster throughput and narrower bandwidths giving slower throughput. Filters are required to operate at many different frequencies, impedances and bandwidths. As other bandwidths, the asymptotic bandwidth is measured in multiples of bits per seconds. The low threshold current also permits high intrinsic modulation bandwidths in VCSELs. Long Term Evolution (LTE) telecommunications networks use several frequency bands with associated bandwidths. Virtual Channels are assigned guaranteed minimum bandwidths. Extended audio bandwidths cause interference on adjacent channels. Different aircraft, control towers and other users transmit with different bandwidths and audio characteristics. Bus clock speeds and therefore bandwidths are both quoted using SI decimal prefixes. This has led to the bandwidths of communication networks achieving terabit per second transmission speeds. Wireless modems come in a variety of types, bandwidths, and speeds. The UK was allocated 11 frequency blocks of varying bandwidths in January 2013. EoIB enables multiple Ethernet bandwidths varying on the InfiniBand (IB) version. As long as tuning is within several signal bandwidths, the result will appear. Inverted-F antennae have narrow bandwidths.