Computer Controlled CATV System (1973)

By Jack Cauldwell. Arvin Systems, Inc.

The most crucial parameter of any CATV system is the complete system alignment. Presently each amplifier is aligned by hand using a Field Strength meter or a simultaneous sweep system and, consequently, takes a number of days to complete the entire system alignment. The only problem is that the system alignment does not remain stable over periods of time due to temperature changes, voltage variations, and component degradation.

There are several ways to detect the condition of system alignment, but all require going through the system by hand with a Field Strength meter to make corrections. Usually an alignment problem shows up as a poor picture on a customer's TV set. After a few complaints are made, the system operator determines that it is time to realign the amplifiers. There have been several attempts to curb the variations in system alignment, but none have proven good enough to eliminate periodic system alignments.

By clicking the "Download Paper" button, you are agreeing to our terms and conditions.

Similar Papers

Computer-Aided CATV System Design
By Richard L. Amell, Cox Cable Communications, Inc.
1979
CATV System Design and Operation
By C. Bailey Neal, Archer S. Taylor, Donald W. Levenson, Orville D, Page, J.D. Cauldwell, P. Knight and E. R. Mertz, John Campbell and Joseph P. Gleason
1969
A Computer Design Of CATV Distribution Systems
By Ivan T. Frisch, Vice President, Bill Rothfarb, Sr. Engineer, Aaron Kershenbaum, Sr. Engineer, Network Analysis Corporation
1971
A Test System For Controlled Subjective Testing Of Cable System Impairments
By Tom Elliot, Cable Television Laboratories, Inc. & Joseph B. Waltrich, Jerrold Communications
1991
Maintenance Of Large CATV Systems
By Jack Long, Vice President-Engineering, Transvideo Corporation, A Division of Cox Cable Communications
1971
CATV System Powering Considerations
By Peter Deierlein, Magnavox CATV Systems Company
1989
Industrial Two-Way CATV Systems
By Harold W, Katz, Interactive Systems, Inc,
1974
Computer Assisted RF Performance Testing
By Jeck Koscinski and Dan Earley, Warner Amex Cable Communications Inc.
1983
Advanced Hybrids For CATV Amplifiers
By Jay G. Staiger, Magnavox CATV Systems, Inc.
1983
Control Of Remote Hubs In Addressable CATV Systems
By Andrew E. Hospador, General Instrument Corroration
1985
More Results >>