ICOM 279501 Manual De Usuario
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PANEL DESCRIPTION
u TRANSMIT POWER/LOCK SWITCH [Hi/Lo•
]
• Selects high, middle or low power when pushed. (p. 9)
• Toggles the lock function ON/OFF when pushed for
• Toggles the lock function ON/OFF when pushed for
1 sec. (p. 10)
i CHANNEL 16 SWITCH [16•
9
]
• Selects Channel 16 when pushed. (p. 7)
• Selects call channel when pushed for 1 sec. (p. 7)
• Enters call channel write mode when the call channel is
• Selects call channel when pushed for 1 sec. (p. 7)
• Enters call channel write mode when the call channel is
selected and this switch is pushed for 3 sec. (p. 10)
o CHANNEL UP/DOWN SWITCHES [Y
Y]/[Z
Z]
• Selects an operating channel. (pgs. 7–9)
• Selects the SET mode condition of the item. (p. 16)
• Selects the SET mode item when pushed with [SQL].
• Selects the SET mode condition of the item. (p. 16)
• Selects the SET mode item when pushed with [SQL].
(p. 16)
• Checks tag channels or changes scanning direction dur-
ing scan. (p. 13)
!0 SQUELCH SWITCH [SQL•
MONI
]
• Push this switch, then adjust the squelch level with
[Y
Y]/[Z
Z]. (p. 11)
• Manually opens the squelch for monitoring the channel
while pushed and held. (p. 10)
• While pushing this switch, turn power ON to enter the set
mode. (p. 16)
!1 PTT SWITCH [PTT]
Push and hold to transmit; release to receive.
■ Function display
q SIGNAL STRENGTH INDICATOR (pgs. 10, 20)
Shows the relative signal strength while receiving signals.
w TRANSMIT POWER INDICATOR
• “LOW” appears when low power is selected.
• “MID” appears when middle power is selected.
• No indication appears when high power is selected.
• “MID” appears when middle power is selected.
• No indication appears when high power is selected.
e TAG CHANNEL INDICATOR (p. 13)
Appears when tag channel is selected.
r SQUELCH LEVEL INDICATOR (p. 11)
Show the squelch level.
q
r
t
y
w e
!4
!6
!5
u
i
i
o
!0
!1
!2
!3
!1
!2
!3
!8
!7
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IC-M90.qxd 04.8.23 3:53 PM Page 5