Icom IC-9100 Overview page 5

Independent receivers
3 independent receiver circuits from the antenna connector to the
second IF mixer (image rejection mixer). One for HF/6m, 2m, and
70cm Simple recei er design red ce the n mber of IF stages in a 70cm. Simple receiver design reduce the number of IF stages in a
receiver reduces the image and internal noise insertion points.
Installing the UX‐9100 adds a fourth independent receiver.