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[Discuss-gnuradio] Quadrature direct-conversion receiver design

From: Marcus D. Leech
Subject: [Discuss-gnuradio] Quadrature direct-conversion receiver design
Date: Thu, 04 Mar 2010 21:24:12 -0500
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OK, so this probably seems like a fundamental sort of question, but I've
noticed that there seem to be
  a couple of different places on the net describing quadrature receiver
toplogies, and I want to know something
  fairly simple.

For a direct-conversion quadrature receiver, must you phase split *BOTH*
the RF and LO inputs to the
  mixers?  That is, do you need a 90 degree hybrid on both the RF and LO

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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