However, the beat frequency is still at the carrier frequency and therefore contains a high ( typically MHz ) conponent.
22.
The Kell factor is the reduction necessary in signal bandwidth such that no beat frequency is perceived by the viewer.
23.
A " heterodyne " is a beat frequency such as can be heard when two close musical notes are sounded together.
24.
Reduction of the carrier level permits higher station to permit demodulation, usually by means of a beat frequency oscillator ( BFO ).
25.
This helped to prevent power line hum and magnetic interference from causing visible beat frequencies in the displayed picture of analogue receivers.
26.
The period of this beat frequency is linearly proportional to the angular velocity of the ring laser with respect to inertial space.
27.
If one measures simultaneously several pulses, interference takes place with a beat frequency equal to the inversal average sequence time of the pulses.
28.
In this case, the beat frequencies arising are differently phased across the detector surface and these destructively interfere producing a low signal output.
29.
During the pulses of carrier the beat frequency is generated, while between the pulses there is no carrier so no tone is produced.
30.
The difference between consonance and dissonance is not clearly defined, but the higher the beat frequency, the more likely the interval is dissonant.
