Adjective
characterized by lack of variation in pitch, tone, or volume
Source: WordNethe lectured in an unmodulated voice edged with hysteria Source: Internet
Contact calls are soft, unmodulated sounds made by individuals that have been separated from their group and may be responded to with a "contact answer" call that starts out loud, but becomes softer. Source: Internet
Modulation index The AM modulation index is a measure based on the ratio of the modulation excursions of the RF signal to the level of the unmodulated carrier. Source: Internet
It is thus defined as: : where and are the modulation amplitude and carrier amplitude, respectively; the modulation amplitude is the peak (positive or negative) change in the RF amplitude from its unmodulated value. Source: Internet
Modulation index As in other modulation systems,the modulation index indicates by how much the modulated variable varies around its unmodulated level. Source: Internet
The unmodulated radio frequency carrier is applied to the control grids of both tubes. Source: Internet