Icom IC-746PRO Instruction Manual page 16

1
PANEL DESCRIPTION
I Front panel
i746PRO
TUNER ANT
NR NOTCH
T
A
/NOTCH
NR
Y
AF RF/SQL
MIC GAIN RF PWR CW PITCH
!8
!8 MULTI-FUNCTION SWITCHES [F1]–[F5]
➥Push to select the function indicated in the LCD
display above these switches. (p. 11)
• Functions vary depending on the operating mode.
➥Push to input a character for memory keyer pro-
gramming or memory name. (pgs. 31, 67)
!9 MENU SWITCH [MENU]
Push to change the set of functions assigned to the
multi-function switches.
• Toggles between menu 1 (
@0 MODE SWITCHES
Selects the desired mode. (p. 23)
• Announces the selected mode when an optional UT-102
is installed. (p. 90)
➥ Selects USB and LSB mode alternately.
SSB
➥ Selects SSB data mode
when pushed for 1 sec. in SSB mode.
➥ Selects CW and RTTY mode alternately.
CW/RTTY
➥ Switches CW and CW-R
mode when pushed for 1 sec. in CW
mode.
➥ Switches RTTY and RTTY-R
mode when pushed for 1 sec. in
verse)
RTTY mode.
➥ Selects AM and FM mode alternately.
AM/FM
➥ Selects AM/FM data mode
when pushed for 1 sec. in AM/FM mode.
3
(continued)
HF/VHF TRANSCEIVER
F 1 F 2 F 3 F 4
MENU SSB CW/RTTY AM/FM
KEY SPEED P.AMP/ATT NB VOX/BK-IN
!9 @0 @1 @2 @3
) and menu 2 ( ).
(USB-D, LSB-D)
(CW reverse)
(RTTY re-
(AM-D, FM-D)
1.8 1 3.5 2 7
10 4 14 5 18
7 8
21 24 28
0 144 ENT
GENE 50
MP - W MP - R
TX
XFC
F 5
FILTER
CALL
MONITOR
@4 @5 @6 @7
@1 PREAMP/ATTENUATOR SWITCH [P.AMP/ATT]
(p. 48)
➥ Push momentarily to toggle between preamp-1
and preamp-2.
• "P.AMP1" activates for HF all bands.
• "P.AMP2" activates high-gain preamp for 24 MHz
band and above.
➥ Push for 1 sec. to toggle the attenuator function
ON and OFF.
✔ What is the preamp?
The preamp amplifies received signals in the front end cir-
cuit to improve the S/N ratio and sensitivity. Select "P.AMP1"
or "P.AMP2" when receiving weak signals.
✔ What is the attenuator?
The attenuator prevents a desired signal from distorting
when very strong signals are near the desired frequency, or
when very strong electric fields, such as from a broadcast-
ing station, are near your location.
@2 NOISE BLANKER SWITCH [NB] (p. 51)
➥ Switches the noise blanker ON and OFF when
pushed. The noise blanker reduces pulse-type
noise such as that generated by automobile igni-
tion systems. This function cannot be used for
FM, or non-pulse-type noise.
• "NB" appears while the noise blanker is activated.
➥ Enters the noise blanker level set mode when
pushed for 1 sec.
TWIN PBT
3
F-INP
6
9
SPLIT
PBTC MW
A /B
V / M M-CL
M-CH
TS
RX
LOCK
∂TX
RIT CLEAR
RIT/∂TX
LOCK/
SPCH
@8 @9
#7
#6
#5
#4
#3
#2
#1
#0