Title :
A low cost multi-media radio system
Author :
Merrill, Steven C. ; McDonough, Anne K. ; Symes, Steven W. ; Desourdis, Robert I., Jr.
Author_Institution :
Sci. Applications Int. Corp., Stow, MA, USA
Abstract :
An alternative, or supplemental, approach to automatic link establishment (ALE) radios is to combine modern, commercially available packet radio technology with an understanding of channel requirements to produce a low-cost multimedia radio (MMR). A prototype unit has been demonstrated to provide two-way, half-duplex packetized message communication via skywave propagation when the operating frequency is below the maximum usable frequency (MUF) and meteor burst (MB) propagation when the operating frequency exceeds the MUF. The prototype MMR uses off-the-shelf commercial radio equipment, including packet radio controller, HF transceiver, 1 kW power amplifier (HPA), Yagi antennas, and PC-controller for a total cost below $4000
Keywords :
ionospheric electromagnetic wave propagation; meteor burst communications; multimedia systems; packet switching; radio systems; transceivers; 2-way half-duplex packetised message communication; HF transceiver; PC-controller; Yagi antennas; automatic link establishment HF radios; low-cost multimedia radio; meteor burst communication; packet radio controller; power amplifier; prototype MMR; skywave propagation; Communication system control; Costs; Frequency; Multimedia communication; Multimedia systems; Packet radio networks; Power amplifiers; Prototypes; Radio control; Transceivers;
Conference_Titel :
Military Communications Conference, 1991. MILCOM '91, Conference Record, Military Communications in a Changing World., IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-87942-691-8
DOI :
10.1109/MILCOM.1991.258411
