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Entry  Fri Oct 28 20:39:19 2011, MIrko, Update, LSC, RFAM monitor in place. ( Uncalibrated ) EPICS troubles MC_DC11MHz.mMC_DC29MHz.mMC_DC55MHz.mRFAMPD.c
    Reply  Sun Oct 30 14:08:35 2011, rana, Update, Electronics, RFAM monitor in place. ( Uncalibrated ) EPICS troubles 
Message ID: 5764     Entry time: Sun Oct 30 14:08:35 2011     In reply to: 5760
Author: rana 
Type: Update 
Category: Electronics 
Subject: RFAM monitor in place. ( Uncalibrated ) EPICS troubles 

Quote:

{Suresh, Jamie, Mirko]

We adapted the Stochmon box to include LP filters at 1.8Hz behind the RMS parts.
Then measured the RMS signals for different RF signal levels at 11.0.65, 29.5, 55.325MHz provided by a RF freq. generator.
As you can see in the data below the suppression of the BP filters of neighboring frequencies is only 35-35dB in power (see also manufacturer specs).

We therefor want to substract crosstalk, by calculating it out. We decided to use C-code in CDS. No computer crashing this time :)

 This is neat idea, but it seems like it would be easier to just add another set of rf BP filters inside of the StochMon box. Luckily, Steve was thinking ahead and ordered extra filters.

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