Upstream RF Troubleshooting
Upstream RF Troubleshooting
Upstream RF Troubleshooting
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Group Delay<br />
• From the IEEE Standard Dictionary of<br />
Electrical and Electronics Terms:<br />
<strong>Upstream</strong> <strong>RF</strong><br />
<strong>Troubleshooting</strong><br />
Group delay is “the derivative of radian phase<br />
with respect to radian frequency. It is equal to<br />
the phase delay for an ideal non-dispersive<br />
delay device, but may differ greatly in actual<br />
devices where there is a ripple in the phase<br />
versus frequency characteristic.”<br />
© 2003, Cisco Systems, Inc. All rights reserved.<br />
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