By Topic

Phase Effects in Cross-Modulation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Linley Gumm ; Tektronix, Inc.

CATV amplifiers can convert amplitude cross-modulation into phase cross-modulation. It has been generally assumed that this is desirable. A theory is developed and checked experimentally that shows that the fm deviations caused by the phase shifts are visible in television receivers. If the phase shift exhibits a rise time of about 100 ns or less, phase cross-modulation and amplitude cross-modulation are equally visible if the sidebands of the two modulation processes are equal for a 15 kHz squarewave. The visibility of the phase cross-modulation is rise-time dependent, showing a 12 dB decrease in visibility as the rise time is lengthened to about 300 ns.

Published in:

IEEE Transactions on Cable Television  (Volume:CATV-1 ,  Issue: 1 )