A calibrated microphone is placed in front of the speaker and feeds the speaker’s output into a machine that plots the frequency vs. amplitude as shown in Figure A. Figure A Now take a look at the ...

Let’s start our expla nations of loudspeaker measurement graphs with the most basic graph of a speaker’s behavior: the frequency response. Sometimes this is referred to as the amplitude response as ...

There are many different varieties of modulation but they all fall into three basic categories, namely amplitude modulation, frequency modulation and phase modulation, although frequency and phase ...

Save guides, add subjects and pick up where you left off with your BBC account. A boat at sea bobs up and down as waves pass. The vertical distance between a crest and a trough is 52 cm and 20 ...

This report summarises that results of tests at three sites, using typical indoor aerials, to compare FM and AM systems for broadcasting. The main conclusions are as follows:- (1) The proposed BBC ...

Figure 3 Tout amplitude versus R3, 0 = Fully CCW, 1 = CW. Note that R3 has no effect on Pout or –Pout amplitudes, which always have full Vss to Vdd excursions. Oscillation frequency is affected by ...