Assertion: signal | /r/CapableOf | reverse signal
Facets:
value: to f
type: OTHER
value: to f bfo
type: OTHER
Source sentences:
text: signals where a high card or one followed by a lower card is encouraging when an attitude signal and showing an even number of cards when a count signal; and reverse or upside down signals where the meanings are reversed, i.e. a low card or one followed by a higher card is encouraging when an attitude signal and showing an even number of cards when a count signal.
text: When the signal is multiplied by (aka heterodyned with) the BFO waveform, it shifts the signal to ( F if + F bfo ) {\displaystyle \left(F_{\text{if}}+F_{\text{bfo}}\right)} , and to | F if − F bfo | {\displaystyle \left|F_{\text{if}}-F_{\text{bfo}}\right|} , which is known as the beat frequency or image frequency.