Icom IC-28H Instruction Manual page 10

This. switch has no function when
neither option is installed.
3-2 LCD READOUT
(9 FREQUENCY
(0 SUBAUDIBLE ТОМЕ
INDICATOR "ТОМЕ"
(DDUPLEX MODE
INDICATORS "DUP-, DUP+"
(8OFFSET WRITE
INDICATOR "OW"
49 GROUP CODE
INDICATOR "Aos"
Q) SQUELCH SYSTEM
INDICATOR "D.SQL"