low-frequency spectrum

low-frequency spectrum

[′lō ‚frē·kwən·sē ′spek·trəm]
(spectroscopy)
Spectrum of atoms and molecules in the microwave region, arising from such causes as the coupling of electronic and nuclear angular momenta, and the Lamb shift.
References in periodicals archive ?
* On April 10, 2019, Quebecor announced the purchase by Videotron of 10 blocks of low-frequency spectrum in the 600 MHz band in Innovation, Science and Economic Development Canada's ("ISED Canada") latest commercial mobile spectrum auction.
More crucially, the Snapdragon X55 supports 5G FDD which is required in Europe and other places to make use of low-frequency spectrum for 5G connectivity.
In fact, Clearwire high band spectrum is Sprint's bargaining chip in the planned merger with T-Mobile which in possession of more low-frequency spectrum.
The results of our experiments show the influence of microwave frequency at 2.45 GHz on the low-frequency spectrum of water.
At the near-field point, the low-frequency spectrum is due to the passage of the static axle loads.
To our mind, this can be explained by the following assumptions: * The low-frequency spectrum of the mill body vibration is mainly correlated to the grinding process, as well as to the grinding product parameters, * The transformation of the low-frequency vibration of the mill body into acoustic waves and the transformation of the acoustic waves into an electrical signal ( by the acoustic sensor ) are accompanied by large losses and as a result this double transformation acts like a filter which eliminates the low-frequency useful information about the grinding process.

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