Page 1 of 1
#4 Consider a superheterodyne AM receiver with different standards using IF frequency of 280 kHz with adding format, AM
Posted: Fri May 20, 2022 10:20 pm
by answerhappygod
- 4 Consider A Superheterodyne Am Receiver With Different Standards Using If Frequency Of 280 Khz With Adding Format Am 1 (179.7 KiB) Viewed 12 times
#4 Consider a superheterodyne AM receiver with different standards using IF frequency of 280 kHz with adding format, AM range of 420 kHz-1800 kHz, and the maximum frequency of the baseband signal being assigned as 6 kHz. We are tuning to station 760 kHz (1 point per part): (i) For IF filter, (center frequency, BW) is: (a) (760 kHz, 6 kHz) (b) (280 kHz, 12 kHz) (c) (280 kHz, 6 kHz) (d) (760 kHz, 12 kHz) (ii) For mixer filter, (center frequency, BW) is: (a) (280 kHz, 12 kHz) (b) (760 kHz, 6 kHz) (c) (760 kHz, 12 kHz) (d) (280 kHz, 6 kHz) (iii) For audio filter, (center frequency, BW) is: (a) (0, 12 kHz) (b) (280 kHz, 6 kHz) (c)(0,6 kHz) (d) (280 kHz, 12 kHz) (iv) For the mixer oscillator the frequency is: (a) 480 kHz (b) 1215 kHz (c) 940 kHz (d) 1040 kHz (v) The image station is at: (a) 1320 kHz (b) 1040 kHz (c) 11670 kHz (d) No image interference