olemus
ISO/IEC 2382:
ühispöörduse meetod, mis eraldab ühisedastuskanalis
igale osakanalile eraldi sagedusriba
=
multiple access technique in which a separate frequency band is allocated to each tributary transmission channel in a common channel

ülevaateid
https://en.wikipedia.org/wiki/Frequency-division_multiple_access

http://acts.ing.uniroma1.it/courses/comelet/Slides/20071217_TEL_lecture_2.pdf