DocumentCode
785462
Title
A New Frequency-Division Radiotelegraph Multiplex System (MADFAS)
Author
Niutta, A.
Author_Institution
Italcable, Rome, Italy
Volume
9
Issue
4
fYear
1961
fDate
12/1/1961 12:00:00 AM
Firstpage
412
Lastpage
416
Abstract
A frequency-division multiplex system (MADFAS) is described for operation at HF with less bandwidth than is commonly allowed. The reduction in required bandwidth is achieved by using oscillators with greater frequency stability, and signaling by FSK with the minimum frequency shift compatible with the keying speed. Details on the design and operational characteristics of the system are presented.
Keywords
Automatic frequency control; Bandwidth; Circuits; Filters; Frequency conversion; Frequency division multiplexing; Frequency shift keying; Oscillators; Radio transmitters; Stability;
fLanguage
English
Journal_Title
Communications Systems, IRE Transactions on
Publisher
ieee
ISSN
0096-2244
Type
jour
DOI
10.1109/TCOM.1961.1097729
Filename
1097729
Link To Document