Complex sentence: ENG originally referred to the use of point-to-point terrestrial microwave signals to backhaul the remote signal to the studio, however, in modern news operations it also includes SNG (satellite news gathering) and DSNG (digital satellite news gathering).
Split into simpler sentences: ENG originally referred to the use of point-to-point terrestrial microwave signals to backhaul the remote signal to the studio. In modern news operations, however, it also includes SNG (satellite news gathering) and DSNG (digital satellite news gathering).