I Function Display - Icom IC-M421 Instruction Manual

2
PANEL DESCRIPTION

I Function display

q w
-CALLING
!1
q CHANNEL NUMBER READOUT
Indicates the selected operating channel number.
• "A" appears when a simplex channel is selected. (p. 7)
w POWER INDICATOR (p. 8)
➥
"25W" appears when high power is selected.
➥ "1W" appears when low power is selected.
e BUSY/TRANSMIT INDICATOR (p. 8)
➥ "BUSY" appears when receiving a signal or when the
squelch opens.
➥ "TX" appears while transmitting.
4
e r t y
BUSY-INT----
25W-DUP-TAG-
NORMAL-SCAN-
23 34.154N-
135 34.351E-
UTC-12:00-
!0
r DUPLEX INDICATOR (p. 7)
Appears when a duplex channel is selected.
• Duplex channel has a different transmit frequency and receiving
frequency.
t CHANNEL GROUP INDICATOR (p. 7)
u
Indicates whether an International "INT" or U.S.A. "USA"
channel is selected. (depends on version)
i
y TAG CHANNEL INDICATOR (p. 13)
o
Appears when a tag channel is selected.
u SCAN INDICATOR
➥ Either "NORMAL SCAN" or "PRI-SCAN 16" scan
type appears while scanning. (p. 13)
➥ "DUAL 16" appears during dualwatch; "TRI 16" ap-
pears during tri-watch. (p. 11)
i POSITION INDICATOR
➥ Shows the GPS position data.
• "??" may blink every 2 sec. instead of position data; when the
GPS position data is invalid. In such a case, the last position
data is held for up to 23.5 hours.
• "??" may blink every 2 sec. instead of position data 4 hours
after the position data is input manually, up until 23.5 hours
have past.
• A beep sounds automatically for 1 min. every 4 hours when
the GPS or manually input position data has not been up-
dated.
➥ "No Position" appears when no GPS receiver is
connected and no position data is input manually.