Recent questions tagged fm

Description : How Do I Build a Low Power FM Radio Station?

Last Answer : How Do I Build a Low Power FM Radio Station? A low power FM radio station offers individuals or small groups the ability to go on the air and communicate with the general public using FM radio ... FCC or your local government to determine which, if any FM frequencies you are allowed to transmit on.

Description : Draw block diagram of PLL as a FM demodulator. Explain function of each block.

Last Answer : Operation:  The FM signal which is to be demodulated is applied at the input of the PLL.  the PLL is locked to the FM  The error voltage produced at ... using PLL ensures a high Linearity, between the instantaneous input frequency and VCO control voltage (error amplifier output)

Description : Compare narrow band FM with wide band FM.

Last Answer : Narrow band FM Wide band FM 1 .Modulation Index is less than or slightly greater than 1.  1. Modulation Index is greater than 1.  2.Maximum deviation is ... .Application:-FM mobile communication like police wireless, ambulance etc. 5. Application:-Entertainment broadcasting.

Description : Compare AM with FM with respect to following points: a) Definition. b) Modulation index. c) Bandwidth. d) Side band.

Last Answer : Parameters AM FM Definition It is the process in which the amplitude of carrier signal is varied in accordance with the instantaneous value of modulating signal keeping frequency and ... frequency deviation. Side band There are two sidebands Infinite number of sideband

Description : Draw neat block diagram of FM receiver and explain function of each block

Last Answer : Explanation:-  RF amplifier: There are two important functions of RF amplifier: 1) To increase the strength of weak RF signal. 2) To reject image frequency signal. In FM ... FM broadcast, the maximum modulating frequency is 15 kHz. Hence the audio amplifier must have large bandwidth.

Description : List different methods of demodulation of FM signal.

Last Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator