ICOM IC-R75 用户手册
4
2
PANEL DESCRIPTION
■
Front panel
(continued)
!9
PREAMP SWITCH [P.AMP] (p. 16)
Push to toggle between preamp-1 and preamp-2
or turn the preamp OFF.
@0
ATTENUATOR SWITCH [ATT] (p. 16)
Push to toggle the 20 dB attenuator function ON
and OFF.
@1
NOISE REDUCTION SWITCH [NR] (p. 20)
➥ Toggles the optional noise reduction function
ON and OFF when pushed. Functions in SSB,
CW and RTTY modes. An optional UT-106
CW and RTTY modes. An optional UT-106
DSP
UNIT
is required.
➥ Enters noise reduction level set mode when
pushed for 2 sec. An optional UT-106
DSP UNIT
is
required.
@2
AUTOMATIC NOTCH FILTER SWITCH [ANF]
(p. 20)
(p. 20)
Push to turn the optional automatic notch filter for
receiving AM signals ON and OFF. An optional
UT-106
UT-106
DSP UNIT
is required.
@3
NOISE BLANKER SWITCH [NB] (p. 15)
Toggles the noise blanker ON and OFF. The noise
blanker reduces pulse-type noise such as that
generated by automobile ignition systems. This
function is not effective for FM, or non pulse-type
noise.
generated by automobile ignition systems. This
function is not effective for FM, or non pulse-type
noise.
@4
AGC SWITCH [AGC] (p. 16)
➥ Toggles the AGC (Automatic Gain Control) time
constant fast and slow when pushed.
➥ Toggles the AGC function ON and OFF when
pushed for 2 sec.
@5
SELECT SWITCH [SEL] (pgs. 24, 26)
➥ Toggles the select memory setting ON and OFF
when pushed in memory mode.
➥ Toggles the memory name indication ON and
OFF when pushed for 2 sec. in memory mode.
@6
SCAN SWITCH [SCAN] (p. 25)
➥ Push momentarily to start/stop the programmed
scan in VFO mode.
➥ Push momentarily to start/stop the memory
scan in memory mode.
➥ Push for 2 sec. to start the priority watch in VFO
mode.
• Push [SCAN] again to cancel the priority watch.
FIL
TS
CW/RTTY
FM
SSB
AM
PHONES
POWER
RF/SQL
TWIN PBT
AF
COMMUNICATIONS RECEIVER
DN
UP
1
2
ABC
3
DEF
4
GHI
5
JKL
6
MNO
7
PRS
8
TUV
9
WXY
.
0
QZ
ENT
V/M
MW
SEL
SCAN
CLR
LOCK
AGC
NB
ANF
NR
ATT
P.AMP
SET
CLOCK
ANT
Function display (p. 5)
!9
@0
@1
@2
@3
@4
@6
@5
@5