Page 261 - Build Your Own Transistor Radios a Hobbyists Guide to High-Performance and Low-Powered Radio Circuits

actually for radio-frequency (RF) mixing, the aliasing signals аге signals that сап

seгve as intermediate-frequency (IF) signals.
Alia5ing 15 а Mixing Effect

For using а sampling system as а mixer to provide ап IF signal, let's staгt Ьу
thinking about what happens when ап input signal matches the exact frequency
and phase of the sampling signal. Figure 15-5 presents ап example pulse-train
signal. For а sine-wave input signal of the samefrequency, see Figure 15-6.

,..,

FIGURE 15-5 А pulse-train signal that will Ье sampling ап input signal of
the same phase and frequency.