Icom IC-F70DT Instruction Manual page 14

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PANEL DESCRIPTION
COMPANDER KEY "COMP"
Push to toggle the compander function ON and OFF.
The compander function reduces noise components from the
transmitted audio to provide clear communication.
USER SET MODE KEY "SET"
➥ Push and hold to enter user set mode.
• During user set mode, push this key to select an item, and change
the value or condition using push [CH Up]/[CH Down].
➥ Push and hold this key again to exit user set mode.
User set mode is also available via the 'Power ON function.'
Refer to p. 17 also.
OPT OUT KEYS "OP1"/"OP2"/"OP3"
Push to control the output signal level of the optional ports in
the optional unit connector.
OPT MOMENTARY KEYS "01M"/"02M"/"03M"
Push and hold to control the output signal level of the optional
ports in the optional unit connector.
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TONE/NAC CH SELECT KEY "TSEL"
(LMR (P25 Conventional) operation only)
➥ While in the analog mode operation, push to select the
continuous tone channel using [CH Up] or [CH Down] to
change the tone frequency/code setting.
➥ While in the digital mode operation, push to select the NAC
channel using [CH Up] or [CH Down] to change the NAC
code setting.
➥ While in the mixed (digital and analog) mode operation,
push to select the continuous tone channel using [CH Up]
or [CH Down] to change the tone frequency/code setting.
Then push this key to enter the setting. After that, the NAC
channel selection screen appears. Select the NAC channel
using [CH Up] or [CH Down] to change the NAC code set-
ting. Then push this key to enter the setting.