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Message ID: 213     Entry time: Tue Jul 13 18:40:56 2010
Author: Megan 
Type: Summary 
Category: VCO 
Subject: Comparison of Modeled and Measured VCO Noise 

I modeled the VCO using LISO to find a model of the electronic noise entering the actual VCO. I will double-check all the resistor and capacitor values with the actual VCO to make sure I'm modeling what I actually measured and post the file I used. I also converted the electronic noise into frequency noise of the VCO assuming the conversion factor of 680 kHz/V (found by measuring the frequency response around 80MHz - previous post).

I will work on replacing resistors tomorrow, after looking at my model to see which have the greatest impact on noise, and see if that decreases the measured electronic noise.

Attachment 1: Electronic_and_Frequency_Noise.png  18 kB  | Hide | Hide all
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