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  1. JimRogers

    Suggested Readings for Engr Students

    I liked Good to Great by J Collins. It had an objective approach about it. I alsi think that the Hitchiker's Guide has a lot of good philosophy and some great humor.
  2. JimRogers

    Roller Coaster Analysis

    Rather than Octave, I have found SciLab to be very useful and free. Down load from www.scilab.org
  3. JimRogers

    GigE thru a military connector

    A mated pin socket pair seems to be about 40 mm. 1/10 of a wavelength at 250 MHz in the Cat5e cable is about 76 mm. That is the reason that I think that the approach will work. I will be using the PC pin approach at the source end so I will come onto the board via a standard RJ45, 100 Ohm diff...
  4. JimRogers

    GigE thru a military connector

    I need to run a GigE channel through a military (38999) connector. Does anyone have any experience with using adjacent pins (#22) in a 38999 for high frequency (~250 MHz) signals. The Cat5e impedance is 100 Ohms and my quick calc shows that the 38999 contact pair will be about 200 Ohms.However...
  5. JimRogers

    Read any good books lately?

    The path between the Seas by David McCollough - The building of the panama canal 1870 - 1914. The interaction of engineering and politics was interesting Making of the Atomic Bomb and Dark Sun both by Richard Rhodes Some technical details and a lot of insight on a truly large engineering...
  6. JimRogers

    Random vibration analysis of PCB

    I am an Electrical Engineer with very little background in vibration. Are there any general guidelines for designing a circuit card for a level of vibration? Something like cards under this size can often sustain this level of vibration.
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