Title :
Digital voice considerations for the land-mobile radio services
Author :
Sachs, Herbert M.
Author_Institution :
Sachs/Freeman Associates, Hyattsville, Maryland
Abstract :
This paper investigates the ability of a popular digital voice technique (Adaptive Delta Modulation, ADM/FSK) to operate compatibly in the present Private Land-Mobile Radio Services. It analyzes the technique relative to current FCC rules on cochannel coordination distance, adjacent channel coordination distance, baseband filtering, and analog/digital co-channel compatibility, and recommends rule changes to accommodate this class of digital voice equipment.
Keywords :
Baseband; Decoding; Digital filters; FCC; Frequency shift keying; Land mobile radio; Mobile communication; Privacy; Radio transmitters; Speech analysis;
Conference_Titel :
Vehicular Technology Conference, 1977. 27th IEEE
DOI :
10.1109/VTC.1977.1622446
