Thomas Kunz
Systems and Computer Engineering
6
AMPS: History
–FCC allocated spectrum space in the 800 MHz spectrum
and issued licenses for test systems in Chicago and Washington,
D.C.
–first commercial systems available 1983,
available in all major cities in US in a few years
–AMPS
result of extensive research by Bell Labs in 1960s and
1970s
–800 MHz band was compromise
nlower frequencies occupied by FM and TV systems
nhigher frequencies were deemed too unreliable
(information loss due to weather conditions, multipath fading,
etc.) with existing technology