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Message ID: 1136     Entry time: Wed Nov 3 20:45:29 2010
Author: Zach 
Type: Electronics 
Category: GYRO 
Subject: PDH box IN -> INMON TF 

 Here is a transfer function from the IN to INMON ports of the primary PDH box (#1437). It is pretty constant up to about 10kHz, where it begins to fall off. The phase lag at 10kHz is ~3 degrees. This is consistent with Koji's LISO modeling of the stage, and it indicates that cascading OP27s may not be a suitable practice for our application.


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