The simplest form of amplitude modulation is to employ a system ... of the carrier at integral frequencies of the modulating frequency. The relative levels of the sidebands can be read from a table of ...

Save guides, add subjects and pick up where you left off with your BBC account. f = frequency = number of waves produced by a source per second, in hertz Hz. T = period = time it takes for one ...

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 ...