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AZskibum
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Re: Smart Driving
AZskibum   5/22/2014 12:42:14 PM
Excellent point about driving style. Unfortunately, during rush hour traffic, your fellow drivers will probably not allow you to coast toward the red light. As soon as the space in front of you exceeds 1.25 car lengths, someone will zoom into that space.

zeeglen
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Smart Driving
zeeglen   5/22/2014 10:01:45 AM
Good ideas all, but the driving style can make a big difference too, especially for stop and go city driving in a non-hybrid vehicle.

Example: When a distant traffic light is red and cars are already waiting at the intersection, take your foot off the gas or turn off the cruise control. Coast to the light using natural friction to slow down instead of wearing out your brake pads in the last few seconds to waste the gasoline you have purchased.

If you travel the same route every day learn which intersections have synchronized lights.  Often when not speeding up to the posted speed limit, you can arrive at the next light just after it has turned green and traffic ahead of you has already begun to move.  No brakes, no waste.

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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