Chapter
Bell Labs and Radio Astronomers' Contribution to the First Telecommunication Satellite
1:22:28 - 1:35:51 (13:22)
Bell Labs employed radio astronomers to improve the signal-to-noise ratio of the first telecommunication satellite, but they found that they could not improve its quality due to the excess noise. This noise had already been predicted and measured by Edward Ohm, and had a value of about three kelvin.
Clips
Bell Labs used radio astronomy technology to try and improve the signal noise ratio of telecommunication satellites.
1:22:28 - 1:35:51 (13:22)
Radio Astronomy
Summary
Bell Labs used radio astronomy technology to try and improve the signal noise ratio of telecommunication satellites. Despite their efforts, they could not get rid of the excess noise, leading to the birth of the first cell phone.