Why do modern radio telescopes use azimuth and elevation mounts?

Modern radio telescopes primarily utilize azimuth and elevation mounts because they are more practical and cost-effective to construct than equatorial mounts.1

While equatorial mounts allow a telescope to track a celestial object by moving along a single axis parallel to Earth's rotation, they are difficult and expensive to build, particularly for the very large structures required for radio astronomy. In contrast, modern radio telescopes employ digital computers to drive the antenna simultaneously about the azimuth (horizontal) and elevation (vertical) axes. This computer-controlled approach allows the telescope to accurately follow the motion of a radio source across the sky without the mechanical complexity of an equatorial design.1