I am confused! Was it wireles or hardwired?
"The camera was a Canon EOS 5D Mark II with
wireless transmitter attached and mounted inside a Pelican case customized by Kennedy. It was mounted on a camera plate that was screwed into the platform and then mounted on a Bogen arm. The camera was wired via Ethernet for transmission through a DSL line at Kennedy's position on the balustrade above and behind the platform. The
camera was trigged via a hardwire to eliminate radio interference.
Which ever way he did it - Pretty smart!