[HomeBrew] Direct Conversion RX
R. Blackman
richard.blackman at sympatico.ca
Thu Oct 1 19:35:25 EDT 2009
Hello to group:
If you would like a chuckle, check out my YouTube video of my direct
conversion project.
http://www.youtube.com/watch?v=go6NbBu8CIE
Recipe:
Take one old DDS PIC controller, add an AD9851 DDS, W1FB's QRP notebook
NE602 mixer /receiver page 78.
Discard the BFO section in lieu of the AD9851. Add a G5RV and some 9 volt
batteries. "VOILA"
The bad: The sensitivity is so weak, only the very strongest stations are
heard.
The good: the sensitivity is so weak that there is no AM broadcast
breakthrough....
Enjoy.
Richard VA3NDO
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