31. Transmitters for two meters are typically 0.25 to 1 watts power output, and use keyed amplitude modulation . 32. The information is conveyed via amplitude modulation of a 50control car are used to detect the signal. 33. Many RR Lyraes, including RR Lyrae itself, show long period amplitude modulations , known as the Blazhko effect. 34. Single sideband transmission is a form of amplitude modulation but in effect filters the result of modulation. 35. As with amplitude modulation , best results are obtained when both the expander and compressor waveforms are modified. 36. In amplitude modulation , the amplitude or " strength " of the carrier oscillations is what is varied. 37. Note that ICAO Annex 10 limits the worst case amplitude modulation of the sub-carrier to 40 %. 38. To understand how a balanced modulator works it is necessary to understand amplitude modulation and how it works. 39. The information is conveyed via amplitude modulation of a 50 control car are used to detect the signal. 40. Pulse-amplitude modulation LED drivers are able to synchronize pulses across multiple LED channels to enable perfect colour matching.
