History of radio upon the idea of grounding his transmitter and receiver. With these improvements the system was capable of transmitting signals up to and over hills. Marconi's experimental apparatus proved to be the first engineering-complete, commercially successful radio transmission system. Marconi's apparatus is also credited with saving the 700 people who survived the tragic "Titanic" disaster. In 1896, Marconi was awarded British patent 12039, "Improvements in transmitting electrical impulses and signals and in apparatus there-for", the first patent ever issued for a Hertzian wave (radio wave) base wireless telegraphic system. In 1897, he established a radio station on the Isle of Wight,
Faint Images of the Radio Sky at Twenty-Centimeters the FIRST Bright Quasar Survey (FBQS), which comprised quasar candidates that were then followed up with optical spectroscopy. The initial survey found 69 quasars, with 51 being newly identified. A number of broad absorption line quasars were discovered by FIRST. Other, high-redshift quasars were identified in the survey by cross-matching with SDSS. Variability was detected in over 1600 sources during the course of the survey, including stars, pulsars, galaxies, quasars, and unidentified radio sources. On large scales, the two-point correlation function between radio galaxies was observed. Faint Images of the Radio Sky at Twenty-Centimeters Faint Images of the Radio Sky