pll transmitter

1W PLL Transmitter with MC145152 Following 1W PLL transmitter exciter provides stable, low noise operation. Transmitter uses a PLL frequency synthesizer built with MC145152 which covers the FM band in 100kHz steps. The VCO uses MV2109 varicap diode to automatically tune to selected frequency...

Early 5 Watt Pll Transmitter This page shows you how FM PLL Stereo was done back in the early days. The switching stereo coder was sound but had no left-right identification ident circuit. The carrier frequency was determined by a low frequency VFO circuit which was also FM modulated. The whole...