Analog Modulation is the technique used which was used in the
earliest SNG systems. In 1982 during the war between England
and Argentina over the Falkland Islands, the technology was
first demonstrated. Digital Satellite News Gathering (DSNG)
came into picture during 1990s due to implementation of digital
modulation.
DSNG van is a sophisticated affair and it is capable of deployment
anywhere in the world. Broadcast engineers are currently working
on designs for remotely controlled, robotic DSNG vehicles that
can be teleoperated in hostile environments such as battle zones,
deep space missions, and undersea explorations without endangering
the lives of human operators.