Icom IC-T90A Instruction Manual page 14

2
PANEL DESCRIPTION
➥ While pushing [PTT], this key sends a DTMF "B".
!4 CALL/LOCK SWITCH [CALL/TV LOCK]
➥ Toggles between call channel, TV channel,
C
weather channel (U.S.A. version only) and
CALL/TV
LOCK
VFO mode in sequence. (p. 20)
➥ Push for 1 sec. to toggle the lock function ON and OFF.
(p. 74)
• "é" appears while the key lock function is in use.
➥ While pushing [PTT], this key sends the DTMF code "C".
!5 DTMF MEMORY SWITCH [• DTMF.M]
➥ Push for 1 sec. to enter the DTMF memory
.
channel. (p. 67)
DTMF.M
➥ Inputs MHz digit for frequency input. (p. 19)
➥While pushing [PTT], this key sends the DTMF code "E"
(M).
!6 VOLUME/DIAL SWITCH [1 V↔D]
➥ Push for 1 sec. to exchange [Y]/[Z] and
1
[DIAL] functions. (p. 23)
V D
• "VOL" appears when the tuning dial functions as a
volume control.
➥ Inputs digit '1' for frequency input, memory channel se-
lection, etc.
➥ While pushing [PTT], this key sends the DTMF code "1".
!7 TONE SWITCH [2 TONE] (p. 70)
9
➥ Push for 1 sec. to activate the following tone
2
functions in order.
TONE
• Subaudible tone encoder — "T" appears. (p. 29)
• Tone squelch — "T SQL" appears. (p. 71)
• Pocket beep — "T SQLS" appears. (p. 71)
• DTCS squelch — "DTCS" appears. (p. 71)
• DTCS beep — "SDTCS" appears. (p. 71)
• No tone operation — no tone indicator appears.
➥ Inputs digit '2' for frequency input, memory channel se-
lection, etc.
➥ While pushing [PTT], this key sends the DTMF code "2".
!8 OUTPUT POWER SWITCH [3 H/L] (p. 28)
➥ Push for 1 sec. to toggle output power be-
3
tween high and low.
H / L
• "LOW" appears when low output power is selected.
➥ Inputs digit '3' for frequency input, memory channel se-
lection, etc.
➥ While pushing [PTT], this key sends the DTMF code "3".
!9 DUPLEX SWITCH [4 DUP] (pgs. 29, 31)
➥ Push for 1 sec. to activate the following duplex
4
functions in order.
DUP
• Minus duplex operation — "–DUP" appears.
• Plus duplex operation — "DUP" appears.
• Simplex operation — no duplex indicator appears.
➥ Inputs digit '4' for frequency input, memory channel se-
lection, etc.
➥ While pushing [PTT], this key sends the DTMF code "4".