Rotctld error(Unable to control EA4TX)

When I try to execute this command in the terminal-
rotctld -m1102 -t4533 -r /dev/ttyUSB0
I get this as output in the terminal-
rot_open: error = IO error.
Can anyone tell what is the problem?

rotctld - m 1102 -r /dev/ttyACM0 -t 4533

1 Like