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Entry  Wed Apr 27 15:34:38 2011, kiwamu, Update, Electronics, AS55 demod board with new 90 deg splitter : healthy 
    Reply  Wed Apr 27 17:38:01 2011, kiwamu, Update, Electronics, Re : AS55 demod board with new 90 deg splitter : healthy relativephase.pngIQamplitude.png
Message ID: 4572     Entry time: Wed Apr 27 15:34:38 2011     Reply to this: 4573
Author: kiwamu 
Type: Update 
Category: Electronics 
Subject: AS55 demod board with new 90 deg splitter : healthy 

A new 90 deg splitter, PSCQ-2-51W, has been installed on another demod board called AS55.

It shows a reasonably close 90 degree separation between the I and Q signals at 55 MHz with various LO and RF power.

So far we have ordered only three PSCQ-2-51Ws for test. Now we will order some more for the other demodulators.

 Some plots will be posted later.

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