Icom IC-R75 Instruction Manual page 8

2
PANEL DESCRIPTION
■ Front panel
!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
is required.
UNIT
➥ Enters noise reduction level set mode when
pushed for 2 sec. An optional UT-106
required.
@2 AUTOMATIC NOTCH FILTER SWITCH [ANF]
(p. 20)
Push to turn the optional automatic notch filter for
receiving AM signals ON and OFF. An optional
UT-106
DSP UNIT
@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.
4
(continued)
Function display (p. 5)
AF RF/SQL
PHONES POWER
P.AMP ATT NR
! 9 @ 0 @ 1
DSP UNIT
is required.
COMMUNICATIONS RECEIVER
SSB CW/RTTY
AM FM
TWIN PBT
ANT
SET
CLOCK
ANF NB AGC
@ 2 @ 3 @ 4
@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.
DSP
@6 SCAN SWITCH [SCAN] (p. 25)
➥ Push momentarily to start/stop the programmed
scan in VFO mode.
is
➥ 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.
1 2 3
ABC DEF
FIL
4 5 6
GHI JKL MNO
TS
7 8 9
PRS TUV WXY
.
0
ENT
QZ
V/M MW CLR
@6
SEL SCAN
@5
DN UP
LOCK