Icom IC-M502 Instruction Manual page 37

LCD contrast
This item adjusts the contrast of the LCD in 8 steps.
Set mode
LCD
contrast
LCD contrast 4 (default)
The optional HM-127 has it's own setting for the beep tone.
Attenuation level
This item sets the receive attenuation level for the attenuator
function from 3 levels.
Set mode
Attenuation
level
Attenuation level 1 (default)
Scrambler code
When an optional scrambler unit is connected, the scrambler
code can be set depending on dealer setting.
When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to
127 or 1 to 32) can be selected, respectively.
Set mode
Scrambler
code
Scrambler code 0 (UT-98 default)
Scrambler type
When an optional scrambler unit is connected, the scrambler
type can be selected in set mode depending on dealer set-
ting.
Set mode
Scrambler
type
UT-98 scrambler unit
8
SET MODE
Scrambler code 127
UT-112 scrambler unit
33