PLO ABA fix

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Viv
Posts: 11
Joined: Sat Apr 28, 2018 6:49 pm

PLO ABA fix

Post by Viv » Tue Jul 07, 2015 6:54 am

Hi Guys  1.       The board layout for the PLO ABA fix is different from the Scotty version that I built. I can’t find any references or schematics for this board. What are the improvements, and what performance enhancements have been achieved?  2.       Someone asked about best build topography. I didn’t like the egg box idea, it spread the whole thing out too much. My build is compact, uses four build planes made from blank double sided board.  Front end ass inc cavity filterOscillatorsRBW and detector assPower and control ass.  Each module in its own brass shim box. Control cables, ribbon IDC – no out of lock problems. Using Lens USB in conjunction with the original parallel port board for control. I also added a 10.7MHz receiver, AM, WB FM, NB FM using a  transformer style splitter to extract the IF after the final IF amp.  CheersViv  

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