I Microphone - Icom IC-M421 Instruction Manual

o TIME ZONE INDICATOR
➥ Shows the current time data when a GPS receiver is
connected.
➥ "No Time" appears when no GPS receiver is con-
nected and no time data is input manually.
➥ "Local" appears when the offset time data is set.
(p. 43)
!0 LOW BATTERY INDICATOR
" " blinks when the battery voltage drops to approx. 11 V
DC or below.
!1 CHANNEL COMMENT INDICATOR
Channel comment appears if programmed. (p. 10)
• More than 9-character comment scrolls automatically.
PANEL DESCRIPTION

I Microphone

q
w
q PTT SWITCH [PTT]
Push and hold to transmit; release to receive. (p. 8)
w CHANNEL UP/DOWN KEYS [J J ]/[K K ]
Push either key to change the operating memory channel,
set mode settings, etc. (pgs. 6, 45)
e TRANSMIT POWER KEY [HI/LO]
➥ Toggles power high and lower when pushed. (p. 8)
• Some channels are set to low power only.
➥ While pushing [HI/LO], turn power ON to toggle the mi-
crophone lock function ON and OFF. (p. 10)
2
2
Microphone
e
5