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Group Delay Ripple in Broadband Repeater Line Caused by Amplifier Mismatch

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1 Author(s)
Prochazka, A. ; Canadian Broadcasting Corporation

A formula is derived enabling one to ascertain a group delay variation caused by poor amplifier VSWR in a broadband repeater line. Calculated examples are given whicn show that this periodic peak-to-peak variation of group delay is most severe in the low band VHF TV channels and can reach magnitudes of 100 nsec in present day coaxial cable repeater systems.

Published in:

Cable Television, IEEE Transactions on  (Volume:CATV-3 ,  Issue: 1 )