The reason that most seti programs choose to listen at microwave radio frequencies is that They have an ability of transmitting along a vast range of frequencies without any overlap .
Microwaves are the most energy efficient way to send information In electromagnetic spectrum, microwaves comes between radio waves and infrared waves. They are high frequency waves and their wavelengths are short . Due to which they are used in radio and television broadcasting too . They have an ability of transmitting along a vast range of frequencies without any overlap . Hence , most seti programs choose to listen at microwave radio frequencies .
To learn more about electromagnetic spectrum here :
https://brainly.com/question/15576247
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