Data in binary is a small current (voltage)
logic zero value below 0.8 volts
logic 1 is 2 - 5 volts.
The incoming data as voltages converted to clean digital form of 1 and 0
using logic gates. The binary data is converted to an analog current,
and enhanced using an amplifier and transmitted.
A simple 4-bit D/A converter can be made with a four-input amplifier.
Each bit pattern is represented by a voltage level.
Analog to Digital Conversion
The input analog voltage processed to produce a digital value of signals transmitted.
Read more about RADAR systems Analog to Digital
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