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Entry  Tue Jan 25 16:30:16 2011, Tara, Frank, DailyProgress, Electronics Equipment, RCAV RFPD fixed RCAV-RFPD1.jpgRCAV-RFPD2.jpgnew_RCAV-RFPD3.jpg
    Reply  Fri Jan 28 13:35:35 2011, Tara, Frank, DailyProgress, Electronics Equipment, RCAV RFPD fixed 35MHzPD.pngpd21.png
       Reply  Sun Jan 30 22:58:35 2011, Tara, DailyProgress, Electronics Equipment, RCAV RFPD fixed beat_2011_01_30.png
Message ID: 456     Entry time: Fri Jan 28 13:35:35 2011     In reply to: 454     Reply to this: 457
Author: Tara, Frank 
Type: DailyProgress 
Category: Electronics Equipment 
Subject: RCAV RFPD fixed 

The TF of 2 35.5MHz RFPD and 21.5 MHz RFPD are measured by the Jenne laser. RCAV's RFPD has the better response, while ACAV's RFPD peak is slightly shift to 37 MHz. But the peak is low Q so we lose only a few dB. PMC's RFPD is now tune to have a resonance peak at 21.5 MHz and a notch at 43 MHz as it should be.

 

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