DocumentCode
1720940
Title
Automatic communications control system
Author
Grindahl, Mervin L.
Author_Institution
E. F. Johnson Company
Volume
30
fYear
1980
Firstpage
525
Lastpage
529
Abstract
In FM Land Mobile communication systems, the frequency spectrum below 300 Hz is essentially unused and can be exploited for data transmission. This paper explores a signaling method using subaudible data transmission and its application in a trunked radio dispatch system.
Keywords
Automatic control; Band pass filters; Communication system control; Control systems; Logic; Low pass filters; Pulse modulation; Pulse shaping methods; Radio frequency; Repeaters;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference, 1980. 30th IEEE
Type
conf
DOI
10.1109/VTC.1980.1622861
Filename
1622861
Link To Document