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KEK visit to Fermilab --- Week 2

KEK visit to Fermilab --- Week 2. - Made Interface Bread Board to allow KEK system to switch the clock phase. After resolving grounding issues, every thing works. - Testing of Demod output from KEK system. From KEK Clocking System. To (MAB), going to the phase switches.

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KEK visit to Fermilab --- Week 2

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  1. KEK visit to Fermilab --- Week 2 - Made Interface Bread Board to allow KEK system to switch the clock phase. After resolving grounding issues, every thing works. - Testing of Demod output from KEK system From KEK Clocking System To (MAB), going to the phase switches protection: -0.6 volts min, 1.2 volts max, 1 nF to ground

  2. Testing the Demod Readout of KEK system eccosorb or Gunn Diode KEK clocking system (4Khz and 50 Hz) PS voltages Magic-T Module 50 ohm KEK preamps (x100) KEK ADC Q1 LV biases from MMIC Jig Board Mac Mini

  3. Demod output has small glitches and drifts Hard to see change in Demod output with and without eccosorb no eccosorb End 4 Khz clock Start 4Khz clock eccosorb

  4. Gunn Diode switching ON/OFF makes clear change in Demod Output Gunn Diode OFF Gunn Diode ON

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