Many of the TV frequency bands have been vacated by TV's move to digital, so, in a country hungry for wireless resources, it was proposed that this spectrum get redirected to mobile access use.

当电视信号变为数字信号后，许多电视的频率带宽都被闲置下来。 因此，在一个渴望无线资源的国家，这些频带被引向移动接入应用可谓众望所归。

youdao

The root cause for interoperability remains the same--multiple users in different frequency bands using different waveforms.

同样，这也是使用不同波形、不同频率的多个用户不能保持互操作性的根本原因。

youdao

Exploit differences in technologies and frequency bands.

发掘各种技术和频带之间的差别。

youdao

The technology uses gaps in radio spectrum, called 'white spaces', which exist in between frequency bands.

ENGADGET: UK regulator wants white space wireless service in 2014, starts trials this fall

The superconductor's lack of resistance allows the firm to build filters that can chop a signal into much narrower frequency bands than a traditional filter.

ECONOMIST: Superconductors are starting to become useful

For example, 3G cell phones require multiple power amps (compared to one in each 2G phone) to support 2G and 3G air interface standards across multiple frequency bands.

FORBES: Anadigics Powers Up