[eagle] 70 cm Receiver - Replacing U8 made no difference

Juan Rivera juan-rivera at sbcglobal.net
Mon Jun 4 19:56:35 PDT 2007


John,

 

Changing the second Mixer, U8 had no affect on the passband ripple.  We've
now replaced the matching network and the mixer with no change at all.  What
do you suggest for the next move?

 

Please see the Eagle Receiver page
http://www.amsat.org/amsat-new/eagle/EaglePedia/index.php/U-Band_Receiver

Under Project Status I've started a new log titled Troubleshooting Resumes.
It has before and after pictures of the passband ripple

 

73,

 

Juan - WA6HTP

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