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As january the 5th, 3 modules have been redesigned and assembled into a dedicated proto board.
These are the front end 10Mhz BP filter, the 4 Mhz Ladder filter and the 6.1Mhz VFO oscillator.
These 3 modules have been assembled with the first internal mixer and after been tested output from ladder filter has been sent to the KX3 antenna tuned on 4Mhz.
Results can be considered excellent and here the lab snapshot:
Next audio stage
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