There is a 4700 Ohm pullup resistor that must be installed between +5 V and the key line.? The wiring instructions show it being installed at the key jack.? Is it OK to install it on the Raduino board, on the solder side of the Digital connector?? Or is soldering to that board too risky??
73/72,
Dean K5DH
uBITX msn 279
