Icom IC-T7H - Circuit Description; Receiver Circuits; VHF RF Circuit (2 F Unit); UHF RF Circuit (2 F Unit)

1
PANEL DESCRIPTION
3
!1 OUTPUT POWER SWITCH [H/L(SET)]
➥ Push to toggle between low and high output
power (p. 12).
• “LOW” appears when low output power is selected.
➥ Push and hold to enter set mode.
!2 TONE SWITCH [TONE(DUP)]
➥ Push this switch to activate the following func-
tions in order (pgs. 21, 22).
• Subaudible tone encoder—“T” appears.
• Pocket beep—“T SQLS” appears.
• Tone squelch— “T SQL” appears.
• No tone operation—no indicator appears.
➥ Push this switch for 1 sec. to select semi-duplex
or simplex operation (p. 13).
• “– DUP” appears during minus duplex operation,
“DUP” appears during plus duplex operation and no
indicator appears during simplex operation.
➥ For the European version only, while pushing
[PTT], push this switch to transmit a 1750 Hz
tone burst signal (p. 13).
!3 VFO/CLEAR KEY [VFO(CLR MHz)
;;
]
➥ Clears some functions, such as digit input before
entry, scan, etc.
➥ Push this key to select VFO mode (p. 10).
➥ Push and hold for 1 sec., then rotate [DIAL] to
change the MHz digit (p. 11).
➥ While pushing [PTT], this key sends a DTMF “A.”
CLR MHz
VFO
A
DUP
TONE
SET
H L
!4 MEMORY MODE KEY [MR(SKIP)
<<
]
➥ Push this key to select memory mode (p. 12).
•“
XX
” appears while in memory mode.
➥ While in memory mode, push this key for 1 sec.
to toggle the selected memory channel between
a skip and a non-skip channel (p. 20).
• “SKIP” appears when the channel is set as a skip
channel.
➥ While pushing [PTT], this key sends a DTMF “B.”
!5 CALL MODE KEY [CALL
==
]
➥ Push this key to select the call channel (p. 15).
• “C” appears while the call channel is selected.
➥ While pushing [PTT], this key sends a DTMF “C.”
!6 SELECT MEMORY WRITE KEY [S.MW(MW)
>>
]
(pgs. 15, 16)
➥ Push this key to enter memory select mode.
•“X” flashes and the [DIAL] can be used for channel
selection (for memory writing or clearing).
➥ Push and hold for 1 sec. to write the set contents
into the selected memory channel (or VFO, call
channel).
➥ Push then push and hold this key while in mem-
ory select mode to erase the contents of the
selected memory channel.
➥ While pushing [PTT], this key sends a DTMF “D.”
MW
S.MW
D
CALL
C
SKIP
MR
B
IC-T7H-2.qxd 2007.07.19 4:10 PM Page 3