(a) A spectrum analyser's display of an FM signal is shown in Figure Q5(a). There are several pairs of sidebands with ap
Posted: Fri May 20, 2022 7:02 pm
(a) A spectrum analyser's display of an FM signal is shown in Figure Q5(a). There are several pairs of sidebands with appreciable power. Atten 10 dB Mk 1 500.0 kHz 0.001 dBm Ref 0 dBm Samp Log 5 dB/ VAvg 10 W1 S2 S3 FC AA Start 450 kHz Res BW 1 kHz VBW 1 kHz Stop 550 kHz #Sweep 500 ms (401 pts) Figure Q5(a) Determine the following: i) What is the carrier frequency? [3 marks] ii) What is the information frequency? [3 marks] iii) How many sidebands are there? [3 marks] With reference to Bessel table in Table Q5(a)ii, determine the modulation index, mf. [3 marks] v) Determine the bandwidth occupied by the FM signal. [3 marks] iv)