Decades before the CIA teleported a young Barry Soetero to Mars, an Englishman was busy communicating with the red planet, as shown from this clipping from the March 1929 issue of Science and Invention.

Dr. Hugh Mansfield Robinson (a doctor of laws), shown standing with the headphones in the photo, had previously communicated telepathically with Mars. He followed up with a message sent by the the British Post Office radio station at Rugby (at a cost of 18 pence per word) on 18,240 meters (16.4 kHz). Since the Martians preferred 30,000 meters (10 kHz), he listened on that frequency, as shown in this picture.

Dr. Mansfield Robinson reported that he did receive a reply. Unfortunately, he was not able to translate the reply. More information is available at the BT archives.