Lake Sawyer Hawks

Perfect spring weather for flying. Bring a friend out to the field!

Marlow Anderson Field • Hobart, WA

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PCM

Pulse-code modulation (PCM) is a digital representation of an analog FM signal where the magnitude of the signal is sampled regularly at uniform intervals, then quantized to a series of symbols in a digital (usually binary) code. PCM hides small amounts of interference, which helps prevent unexpected aircraft movements during transient interference. However, small RFI issues may go unnoticed until they become significant.