Accession Number:

ADA090770

Title:

Wideband Multiplex System.

Descriptive Note:

Final rept.

Corporate Author:

GENERAL ELECTRIC CO UTICA NY AIRCRAFT EQUIPMENT DIV

Personal Author(s):

Report Date:

1980-06-01

Pagination or Media Count:

108.0

Abstract:

The objective of this contract was to design and assemble a wideband video multiplexing system which would provide a means for distributing several wideband video and sync signals on a single coaxial cable to multiple video display terminals. Frequency Division Multiplexing FDM is employed in this system. It divides a particular portion of the RF spectrum into discrete information channels. Each channel contains separate composite video and sync signals for subsequent display. Five separate channels are provided with an assigned channel bandwidth of 6 MHz per channel. Channel frequency is determined by the modulator transmitter unit, which generates the appropriate RF carrier. Channel assignments conform to the commercial TV band and include channels 2, 4, and 5 for bus 1 and channels 7 and 9 for bus 2. Selection of these channels insures sufficient channel spacing to minimize interference.

Descriptors:

• *FREQUENCY DIVISION MULTIPLEXING
• *VIDEO SIGNALS
• *VIDEO NETWORKS
• *COAXIAL CABLES
• DISTRIBUTION
• SPECIFICATIONS
• PERFORMANCE(ENGINEERING)
• INTEGRATED CIRCUITS
• BROADBAND
• USER NEEDS
• SYNCHRONIZATION(ELECTRONICS)
• TABLES(DATA)
• FLOW CHARTING
• MULTIPLEXING
• RADIOFREQUENCY
• CHANNELS
• INSTRUCTION MANUALS
• SCHEMATIC DIAGRAMS
• SPREAD SPECTRUM
• FREQUENCY MODULATORS

Subject Categories:

• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE