direct fm generation is a method of generation of fm signal directly with the help of parameter variation method.
in this method we use some of the devices which converts the variation in voltage to variation in frequency such as varactor diode.
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SAP addresses are the FM frequencies, like FM 91.4.
AM and FM radio are analog
KISS-FM in Chicago broadcasts at 103.5 on the FM dial. That's 103.5 MHz, which is the same thing as 103,500 KHz.
FM transmitter : In this case the frequency of a carrier signal is modulated/altered in accordance with that of frequency of modulating signal. TYPES OF FM TRANSMITTER: 1> directly modulated FM transmitter. 2>indirectly modulated FM transmitter. an FM transmitter is a portable device that plugs into the headphone jack or proprietary output port of a portable audio or video device, such as a portable media player, CD player, or satellite radio system. The sound is then broadcast through the transmitter, and plays through an FM broadcast band frequency. Purposes for an FM transmitter include playing music from a device through a car stereo, or any radio.
AM stands for amplitude modulation, while FM stands for frequency modulation. In AM, the amplitude (the height or depth of the crests or troughs) changes, while in FM, the frequency changes.