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[[RF.Spice A/D]] doesn't offer a sine wave chirp generator with triangular modulation. But you can build one using an FM modulator block just as you did in the first part of this tutorial lesson. You will do this by feeding a triangular wave generator V1 with a frequency of 20kHz (and a period of 50μs) as the modulating signal to the FM Modulator block X1 with a carrier frequency fc = 1GHz and a maximum frequency deviation of 10MHz. As the input triangular wave oscillates between -1V and +1V, the output frequency of the FM modulator will oscillate between 990MHz and 1010MHz. Therefore, B = 20MHz and T<sub>s</sub> = 25μs.
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