Sangean ATS-606A - Manual (Page 47)

To have best reception, while is necesary, press fine
tuning button FINE, LCD will appear FINE indicating
now is under Fine tuning status. The tuning step
now will become 1 kHz/step on AM(MW/LW/SW)
band and 50 kHz/step on FM band while pressing
tuning [
]or[V] button.
FINE TUNING
46
SW
M 1 2 3 4 5 6
FINE