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Entry  Mon Jul 19 21:47:36 2010, rana, Summary, DAQ, DAQ timing test 
    Reply  Tue Jul 27 16:03:36 2010, rana, Summary, DAQ, DAQ timing test Untitled.png
Message ID: 3247     Entry time: Mon Jul 19 21:47:36 2010     Reply to this: 3299
Author: rana 
Type: Summary 
Category: DAQ 
Subject: DAQ timing test 

Since we now have a good measurement of the phase noise of the Rb clock Marconi locked to the Rb clock, I wanted to use that to check out the old DAQ system:

I used Megan's phase noise setup - Marconi #2 is putting out 11000013 Hz at 13 dBm into the ZP-3MH mixer. Marconi #1 is putting out 3 dBm at 11000000 Hz into the RF input.

The output goes through a 50 Ohm load and then a Mini-Circuits BNC LP filter (either 2 or 5 MHz). Then an SR560 set for low noise, G = 5, AC coupling, 1-pole LP @ 1 kHz.

This SR560 output goes into the channel C1:IOO-MC_DRUM1 (which is sampled at 16384 Hz with ICS-110B after the usual Sander Liu AA chassis containing the INA134s).

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