Icom Ic_r20 Communications Reciever Instruction Manual

VI
QUICK REFERENCE GUIDE
[Using the keypad]
➥E
nter the desired frequency
via the keypad.•Direct input can be set until 1 kHz digit, rotate [R-DIAL]to set
below 1 kHz frequency after set tuning steps, if necessary. (See
p. 14 for setting the tuning step.)
•Pushing [VFO MHz]omits the entry of 100 kHz and below, when
you want to edit to these digits “0.”
•Push [DUALWATCH]to cancel the entry.5. Receive mode selection➥Push [MODE SCAN]several
times to select the desired re-
ceive mode.•FM, WFM, AM, LSB, USB...

VII
QUICK REFERENCE GUIDE■Programmed scan operation25 pairs, 50 channels of memories are used for programmed
scan operation, that specify a scanning range. The pro-
grammed scan scans between “xxA” and “xxB” (xx=00 to 24)
frequencies. Therefore, before operating the programmed
scan, different frequencies must be programmed into “A” and
“B” channels.D D
Programming scan edgesAstart frequency must be programmed into a “xxA,” and end
frequency must be programmed into a “xxB” memory channel.1. Setting...

VIII
QUICK REFERENCE GUIDE
D D
Starting scan 
1. Select VFO mode.Push [VFO MHz]to select the VFO mode for full, band and
programmed scan operation.•Select memory mode by pushing [MR S.MW]for memory or bank
scan.2. Selecting a scanning typeWhile pushing and holding
[MODE SCAN], 
rotate [R-DIAL]
to select one of the desired
scanning type.
•Available scan types when VFO
mode is selected; “ALL” for full
scan; “BAND” for the selected
band; one of “PROGxx” (xx=0 to
24) for programmed scan.
•Available scan...

■Front, top and side panels
qANTENNA CONNECTOR (p. II)
BNC connector: Connects the supplied antenna.
wSQUELCH KEY [SQL] (p. 18)
➥Push and hold to temporarily open the squelch and
monitor the operating frequency.
➥While pushing this key, rotate the tuning dial* to adjust
the squelch level.
eUP/DOWN KEYS [Y Y
]/[Z Z
]
Adjust audio volume level.* (p. 17)
rUSB JACK [USB]
Connects to a PC using an optional OPC-1382 
CLONING
CABLE
for cloning. Cloning allows you to quickly and easily
transfer the programmed...

2
1
PANEL DESCRIPTION
1
uLEFT DIAL [L-DIAL]
➥During single band operation, rotate to adjust audio vol-
ume level.* (p. 17)
➥During dualwatch operation, activates as the tuning dial
for upper side on the display.*
iRIGHT DIAL [R-DIAL]
➥Rotate to select the operating frequency.* (p. 12)
➥While scanning, changes the scanning direction.*
(p. 26)
➥While pushing [SQL], sets the squelch level.* (p. 18)
➥While pushing [VFO MHz], sets the operating frequency
in 1 MHz or 10 MHz in VFO mode.* (p. 14)
➥While pushing...

3
1
PANEL DESCRIPTION
tVFO/MHz KEY [VFO MHz]
➥Push to select VFO mode. (p. 11)
➥Push for 1 sec. to toggle between the 1 MHz
or 10 MHz tuning steps (p. 14)
yMODE/SCAN KEY [MODE SCAN]
➥Push to select the operating mode (FM, WFM,
AM, USB, LSB, CW). (p. 16)
➥Push for 1 sec. to start a scan. (p. 35)
uMEMORY KEY [MR S.MW] 
➥Push to select between memory mode, TV
channel and PreSet channel. (p. 11)
➥Push for 1 sec. to enter memory write condi-
tion. (p. 26)
➥Push for 2 sec. to write the operating fre-
quency...

4
1
PANEL DESCRIPTION
1
!2TONE SCAN KEY [4 T-SCAN]
➥Inputs digit ‘4’ for frequency input, memory
channel selection, etc.
➥Push for 1 sec. to start a tone scan. (p. 48)
!3FREQUENCY SKIP KEY [5 SKIP]
➥Inputs digit ‘5’ for frequency input, memory
channel selection, etc.
➥Push for 1 sec. to turn the frequency skip
function ON and OFF in VFO mode. (p. 39)
•“PSKIP” appears when the frequency skip function
is in use.➥Push for 1 sec. to set the memory channel as
the following skip channel in memory mode in...

5
1
PANEL DESCRIPTION
!8TUNING STEP KEY [9 TS]
➥Inputs digit ‘9’ for frequency input, memory
channel selection, etc.
➥Push for 1 sec. to select the tuning step. 
(p. 14)
!9LOCK KEY [• LOCK]
➥Inputs MHz digit for frequency input. (p. 15)
➥Push for 1 sec. to toggle the lock function ON
and OFF. (p. 16)
•“” appears while the key lock function is in use.
@0REWIND/ATTENUATOR KEY [
Ω
ΩΩ
Ω
ATT]
➥Push to select the track for recorded audio.
(p. 64)
➥Push and hold to rewind during playing the
recorded audio. (p....

6
1
PANEL DESCRIPTION
1
■Function displayqBATTERY INDICATOR 
➥“” appears when the installed batteries have
ample capacity.
•They do not appear when operating with an external power
source.
➥“” appears when the batteries are nearing ex-
haustion.
•IC-R20 installed the BP-206 must be charged presently, but
when it installed alkaline batteries can be operate for a while.
➥Scrolls while charging the installed BP-206. (p. 8)
➥Battery indicator blinks when completely charged.wDUPLEX INDICATORS (p. 20)
“+DUP”...

7
1
PANEL DESCRIPTION
rANL/NB INDICATOR(pgs. 21, 52)
➥“ANL” appears when the ANL (Automatic Noise Limitter)
function is in use. The ANL function is available only for
AM mode.
➥“NB” appears when the noise blanker function is in use.
The noise blanker function is available while in
LSB/USB/CW modes.
tLOCK INDICATOR(p. 16)
Appears when the lock function is activated.
yAFC INDICATOR(p. 21)
Appears when the AFC function is activated.
•The AFC function is available for single band operation only.
uSKIP...