Rig command: m
write_block(): TX 6 bytes
0000    fe fe 04 e0 04 fd                                   ......
read_string(): RX 6 characters
0000    fe fe 04 e0 04 fd                                   ......
read_string(): RX 10 characters
0000    fe fe 00 04 00 90 79 20 14 fd                       ......y ..
icom_get_mode: wrong frame len=4
get_mode: error = Command rejected by the rig