Karteikarten
Frequency Modulation
Karten in diesem Stapel (8)
- 1Define frequency modulation (FM)The frequency of the carrier is changed in accordance with the amplitude of the modulating wave
- 2Define centre frequency?The frequency occupied by the carrier when in an un-modulated state
- 3Define frequency deviation (fd)The amount of change in frequency from the centre frequency in the modulated wave
- 4Define carrier/frequency swing?The difference between the highest and lowest frequencies the modulated wave can attain
- 5Define deviation ratio?The ratio of the maximum frequency deviation and the highest permissable modulating frequency
- 6Define modulation index (MI)The decimal number representing the ratio of the frequency deviation and the highest frequency of the modulating wave
- 7How would you work out the modulation index?MI = fd/fm
- 8How would you work out the transmission bandwidth (FM)?Tx BW = 2(fd + fm) = Hz
Informationen
- Beschreibung
- BigDave BigDave (Topics) Karteikarten am Frequency Modulation, erstellt von B L am 13/02/2017.
- Erstellt von
- B L
- Aufrufe
- 0
- Bewertung
Mehr zu Analog and Digital Modulation