NUE-PSK Digital Modem

Hardware Modifications

Changes required for optimum performance


Chassis Grounding Mod - step 1
Scrape or grind off the blue solder mask on the bottom side of the pcb, at the mounting hole closest to the J2 Keyboard connector.
Chassis Grounding Mod - step 2
Scrape or grind the inside of the chassis for the hole corresponding to that same mounting hole. This will then make good electrical contact with the aluminum 1/4 spacer provided.
Add filter cap across power jack pads.

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Page last updated:  March 12, 2010