Icom Ic_r20 Communications Reciever Instruction Manual

							48
9
COMFORTABLE RECEIVING
■Tone scanBy monitoring a signal that is being operated with pocket
beep, tone or DTCS squelch function, you can determine the
tone frequency or DTCS code necessary to open a squelch.
qSet the frequency to be checked for a tone frequency or
code.
wTurn the desired tone type, tone squelch or DTCS, ON by
holding [7 TONE]with turning [R-DIAL].•One of “TSQL” or “DTCS” appears. 
•Even when the pocket beep function is activated, the function is
cancelled when starts the tone scan.ePush [4 T-SCAN]for 1 sec. to start the tone scan.•To change the scanning direction, rotate [R-DIAL].
rWhen the CTCSS tone frequency or 3-digit DTCS code is
matched, the squelch opens and the tone frequency or
code is temporarily programmed into the selected condi-
tion, such as memory channel.•The tone scan pauses when a CTCSS tone frequency or 3-digit
DTCS code is detected.✔
For your convenient!
Even if no tone type is selected, either tone squelch or DTCS,
pushing [4 T-SCAN]for 1 sec. will also start tone scan. In this
case, the tone scan searching for tone squelch frequency
only.☞NOTE:The decoded tone frequency or code is pro-
grammed temporarily when a memory channel is se-
lected. However, this will be cleared when the memory
channel is re-selected.
√
1880
√
013
DTCS scan Tone squelch scan
[R-DIAL]T-SCAN4TONE7
9 
						

							49
SET MODE
10■GeneralSet mode is used for programming infrequently changed val-
ues or conditions of functions.
In addition, the IC-R20 has an expanded set mode which is
used for programming even more infrequently changed val-
ues or conditions of functions. When turning the expanded
set mode OFF, only about one third of the set mode items are
displayed for simple operation.D D
Set mode entering and operationqPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select the desired item, then push
[8 SET].
eRotate [R-DIAL]to select the desired value or condition,
then push [8 SET]to return the setting item selection
mode.
rPush [DUALWATCH]to exit set mode, or rotate [R-DIAL]
to select another set mode item.
D D
Expanded set mode ON/OFFqPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select “SET EXPAND.”
ePush [8 SET]to enter “SET EXPAND,” rotate [R-DIAL]to
select the expanded set mode ON and OFF, then push
[8 SET].
rRotate [R-DIAL]to select the desired item.
tPush [8 SET]to enter the item, rotate [R-DIAL]to select
the desired value or condition, then push [8 SET].
yPush [DUALWATCH]to exit set mode, or rotate [R-DIAL]
to select another item.
SET-EXPAND
-ON >OFF
----------------
SET-EXPAND
>ON -OFF ----------------
Expanded set mode OFF Expanded set mode ON
***-SET-MODE-***
>SET-EXPAND -FM-ANTENNA -AM-ANTENNA -AF-FILTER -ANL -NOISE-BLANKER ----------------
***-SET-MODE-***
-NOISE-BLANKER -POWER-SAVE -BACKLIGHT -BEEP-LEVEL -KEY-TOUCH-BEEP >PRIORITY-WATCH ----------------
SET-EXPAND
-ON >OFF
----------------
SET-EXPAND
>ON -OFF ----------------
DIAL.SEL SWEEP CENTER
T-SCAN SKIP M.N
TONE SET TS
ATTRF GAIN
IC Recorder
123
4560
789BANDDUALWATCH
MAIN/SUB
POWER
VFO
MHzMODE
SCANMR
S.MW
SCOPE
LOCK
RECAFC
SET8DUALWATCH 
						

							50
10
SET MODE
■Set mode itemsThe following items are available in the set mode and ex-
panded set mode.D D
General set mode itemsD D
Expanded set mode items
†Available for the USA version only.
***-SET-MODE-***
-DTCS-CODE >TONE-FREQ -DUPLEX -OFFSET-FREQ -SCOPE-AF-OUTPUT -SCAN-STOP-BEEP ----------------***-SET-MODE-***
-CI-V-BAUD-RATE >CI-V-ADDRESS -WX-ALERT -LCD-CONTRAST -BANK-LINK -DTCS-POLARITY ----------------***-SET-MODE-***
>CI-V-TRANSCEIVE -CI-V-BAUD-RATE -CI-V-ADDRESS -WX-ALERT -LCD-CONTRAST -BANK-LINK ----------------***-SET-MODE-***
-SCAN-RESUME >SCAN-PAUSE -AUTO-POWER-OFF -MONITOR -DIAL-SPEED-UP -LOCK ----------------
• Monitor switch action (p. 54)
• Auto power OFF (p. 54)
• Scan pause timer (p. 55)
• Scope audio output (p. 56)
• Duplex direction (p. 56) • Offset frequency (p. 56) • Scan stop beep (p. 55) • Scan resume timer (p. 55)
• Tone  frequency (p. 57)
• DTCS code (p. 57)
• DTCS polarity (p. 57)
• LCD contrast (p. 58) • Memory bank link (p. 58)
• Weather  alert
† (p. 58)
• CI-V address (p. 59)
• CI-V baud rate (p. 59)
• CI-V transceive (p. 59) • Key lock effect (p. 53)
• Dial speed acceleration (p. 54)
***-SET-MODE-***
>SET-EXPAND -FM-ANTENNA -AM-ANTENNA -AF-FILTER -ANL -NOISE-BLANKER ----------------***-SET-MODE-***
-NOISE-BLANKER -POWER-SAVE -BACKLIGHT -BEEP-LEVEL -KEY-TOUCH-BEEP >PRIORITY-WATCH ----------------
• Priority watch (p. 51)
• Key-touch beep (p. 51)
• Beep output level (p. 51)
• Display backlighting (p. 51)
• Expanded set mode (p. 49) • Noise blanker (p. 52)
• ANL function (p. 52)
• AF filter (p. 52)
• AM antenna selection (p. 53)
• FM antenna selection (p. 53) • Power save (p. 52)
10 
						

							51
10
SET MODE
D D
Priority watch
Turn the priority watch or priority beep (priority watch with
beep emission capability) ON. (default: OFF)
•ON: Start priority watch after exiting set mode.
•BELL : Emits beeps and blinking “S” indicator when
a signal is received on the priority frequency.D D
Key-touch beepThe key-touch beep can be turned OFF for silent operation.
(default: ON)
D D
Beep output levelAdjust the key-touch beep tone level to the desired level
within 39 levels.
The key-touch beep (previous item) must be set to ON to
have a beep tone.D D
Display backlightingThe receiver has display backlighting and function key illumi-
nation with a 5 sec. timer for night time operation. The back-
lighting can be turned ON continuously or turned OFF, if
desired.
•AUTO : Lights when some operation is performed, goes
out after 5 sec. (default)
•ON: Lights continuously during receiver power is ON.
•OFF : Never lights.
BACKLIGHT
>ON -OFF ----------------
BACKLIGHT
-ON -OFF
-AUTO>AUTO ----------------
Auto setting
Continuously ON setting
BEEP-LEVEL
BEEP-LEVEL
Minimum level (no audio)Maximum level
KEY-TOUTCH-BEEP
-ON >OFF
----------------
KEY-TOUTCH-BEEP
>ON -OFF ----------------
Key-touch beep OFF Key-touch beep ONPRIORITY-WATCH
>ON -OFF ----------------
PRIORITY-WATCH
-ON -OFF
-BELL>BELL ----------------
Priority watch ON Priority beep ON 
						

							52
10
SET MODE
D D
Power save
The power save function reduces the current drain to con-
serve battery power. This power save function can be turned
OFF, if desired. In the default setting (“AUTO” selection), the power save func-
tion is activated in 1:4 
(125 msec.: 500 msec.)
ratio when no sig-
nal is received for 5 sec. The ratio becomes 1:8 
(125 msec.:
1sec.)
when no signal is received for another 60 sec.
D
D
Noise blankerThe noise blanker reduces pulse-type noise such as that gen-
erated by automobile ignition systems. This function is only
effective for SSB/CW modes and not effective for non pulse-
type noise.
•OFF : The noise blanker function is turned OFF.
(default)
•ON: The noise blanker function is turned ON.
D
D
ANL functionThe ANL (Automatic Noise Limitter) function reduces noise
components when AM is selected.
•OFF : The ANL function is turned OFF.
(default)
•ON: The ANL function is turned ON.D
D
AF filterThe AF filter suppresses high-pitch tone when this setting is
ON. This function is not effective for FM mode.
•OFF : The AF filter is deactivate. (default)
•ON: The AF filter is activate.
AF-FILTER
-ON >OFF
----------------
AF-FILTER
>ON -OFF ----------------AF filter is ON
AF filter is OFF
ANL
-ON >OFF
----------------
ANL
>ON -OFF ----------------ANL function is ON
ANL function is OFF
NOISE BLANKER
-ON >OFF
----------------
NOISE BLANKER
>ON -OFF ----------------Noise blanker is ON
Noise blanker is OFF
POWER-SAVE
-AUTO >OFF
----------------
POWER-SAVE
>AUTO -OFF ----------------
Power save ON Power save OFF
10 
						

							53
10
SET MODE
D D
AM antenna selection
This setting is activated only for the AM broadcast band,
0.495–1.620 MHz (differ according to version) reception.
•EXT : Use the antenna connected to the antenna con-
nector. (default)
•BAR: Use the internal bar antenna for AM broadcast
band reception.
D D
FM antenna selection
This setting is activated only for the FM broadcast band,
76.000–107.995 MHz (differ according to version), recep-
tion.
•EXT : Use the antenna connected to the antenna
connector. (default)
•EARPHONE: Use the connected earphone’s cable as
the antenna for FM broadcast band recep-
tion.
D D
Key lock effectWhile the key lock function is ON, [VOLUME]and [SQL]can
still be accessed. Accessible keys can be set to one of 4
groups.
[POWER]and [•LOCK]are also accessible during the lock,
however, these keys are not effected by this setting.
•NORMAL : [VOLUME]and [SQL]are accessible. 
(default)
•NO SQL : [SQL]is accessible. 
•NO VOL : [VOLUME]is accessible. 
•ALL: No accessible key is available, except
[POWER]and [• LOCK].
LOCK
-NO-SQL -NORMAL ----------------
LOCK
-NO-SQL -NORMAL
>NO-VOL-NO-VOL
-ALL>ALL ----------------
LOCK
-NO-SQL >NORMAL
----------------
LOCK
>NO-SQL -NORMAL
-NO-VOL-NO-VOL
-ALL-ALL ----------------
Normal lock condition
Audio output can be adjustedSquelch level can be adjusted
Receiver power and lock
function only switchable
FM-ANTENNA
-EARPHONE >EXT
----------------
FM-ANTENNA
>EARPHONE -EXT ----------------
External antenna Connected earphone cableAM-ANTENNA
-BAR >EXT
----------------
AM-ANTENNA
>BAR -EXT ----------------
External antenna Internal bar antenna 
						

							54
10
SET MODE
D D
Dial speed acceleration
The dial speed acceleration automatically speeds up the tun-
ing dial speed when rotating [R-DIAL]rapidly.
•OFF : The dial speed acceleration is turned OFF.
•ON: The dial speed acceleration is tuned ON. 
(default)D D
Monitor key actionThe monitor key, [SQL], can be set as a ‘sticky’ key. When
set to the sticky condition, each push of [SQL]toggles the
monitor function ON and OFF.
•PUSH : Pushing and holding [SQL]to monitor the fre-
quency. (default)
•HOLD : Push [SQL]to monitor the frequency and push
again to cancel it.
D D
Auto power OFFThe receiver can be set to automatically turn OFF after a
specified period has past.
30 min., 1 hour, 1.5 hours, 2 hours, BUSY and OFF (default)
can be specified. The specified period is retained even when
the receiver is turned OFF by the auto power OFF function.
To cancel the function, select “OFF” in this set mode.
•30–120: The receiver automatically turns OFF (with a
beep) after a specified period from last key op-
eration.
•BUSY : The receiver automatically turns OFF (with a
beep) after 3 minutes from last key operation or
signal reception.
AUTO-POWER-OFF
>30MIN -OFF ----------------AUTO-POWER-OFF
-30MIN -OFF
-90MIN -60MIN
-90MIN -60MIN
-BUSY-BUSY -120MIN>120MIN ----------------
30 min. timer 2 hrs. timer
MONITOR
-HOLD >PUSH
----------------
MONITOR
>HOLD -PUSH ----------------
Push and hold [SQL] to monitor Push to monitor
DIAL-SPEED-UP
-ON >OFF
----------------
DIAL-SPEED-UP
>ON -OFF ----------------The acceleration ON The acceleration OFF
10 
						

							55
10
SET MODE
D D
Scan pause timer
Selects the scan pause time. When receiving signals, the
scan pauses according to the scan pause time.
•2–20 : Scan pauses for 2–20 sec. on a received signal,
and selected in 2 sec. steps. (default: 10 sec.)
•HOLD : Scan pauses on a received signal until it disap-
pears. Rotate [R-DIAL]to resume manually.
D
D
Scan resume timerSelects scan resume time. Scan resumes after the specified
period when the received signal disappears.
•0: Scan resumes immediately when the received
signal disappears.
•1–5: Scan pause 1–5 sec. after the received signal
disappears. (default: 2 sec.)
•HOLD : Scan pauses on the received signal even if it dis-
appears. Rotate [R-DIAL]to resume manually.
D
D
Scan stop beepTurns the scan stop beep function ON and OFF. 
When the function is activated (“ON” is selected), a long beep
will sounds each time when signal is received during scan.
SCAN-STOP-BEEP
-ON >OFF
----------------
SCAN-STOP-BEEP
>ON -OFF ----------------
No beep is sound when
receiving a signalA long beep is sound when
receiving a signal
SCAN-RESUME
-1SEC -0SEC ----------------SCAN-RESUME
-2SEC -1SEC
-3SEC >2SEC
-4SEC -3SEC
-5SEC>HOLD -4SEC-5SEC ----------------Scan resumes after 2 sec. Scan resumes manually
SCAN-PAUSE
-4SEC -2SEC ----------------SCAN-PAUSE
-14SEC -12SEC
-8SEC -6SEC
-18SEC -16SEC
-12SEC>HOLD >10SEC-20SEC ----------------Scan pauses for 10 sec. Scan pauses until signal 
disappears 
						

							56
10
SET MODE
D D
Scope audio output
Sets the audio output function while scope operation.
The scope audio output is used for finding out the signals
while scope function are modulated, unmodulated or beet
signal etc.D D
Offset frequencySets the duplex offset frequency for each frequency band in-
dependently within 0 to 159.99999 MHz range. During duplex
operation (–DUP or +DUP), the monitoring frequency (while
[SQL]is pushed) shifts the set frequency. 
The default value may differ according to the selected fre-
quency band 
(before accessing set mode)
and receiver version.
The selected tuning step in VFO mode is used for the off-
set frequency setting.
D D
Duplex directionSets the duplex direction. The displaying frequency shifts the
programmed offset frequency (at left below) when monitor
function is in use (while pushing [SQL]).
•OFF : Simplex operation. (default)
•–DUP : The displaying frequency shifts down dur-
ing monitor.
•+DUP : The displaying frequency shifts up during
monitor.
DUPLEX
--DUP >OFF
-+DUP ----------------
DUPLEX
--DUP -OFF
>+DUP ----------------
Simplex operation Positive duplex operation
OFFSET-FREQ
----0.000.00OFFSET-FREQ
159.999.99 ----------------
----------------
----------------
SCOPE-AF-OUTPUT
-ON >OFF
----------------
SCOPE-AF-OUTPUT
>ON -OFF ----------------
----------------
No audio output while
sweep operationAF output while
sweep operation
10 
						

							57
10
SET MODE
D D
Tone frequency
Sets subaudible tone frequency for tone squelch operation.
Total of 50 tone frequencies (67.0–254.1 Hz) are available.
(default: 88.5 Hz)
•Available subaudible tone frequencies D
D
DTCS code Sets DTCS code for DTCS squelch operation. Total of 104
codes (023–754) are available. (default: 023)•Available DTCS code
The polarity can also be set in “DTCS polarity” as follow.
D D
DTCS polaritySets DTCS polarity from normal and reverse.
(default: NORMAL)
DTCS-POLARITY
-REVERSE >NORMAL
----------------
DTCS-POLARITY
>REVERSE -NORMAL ----------------
Normal setting Reverse setting
023
025
026
031
032
036
043
047
051
053125
131
132
134
143
145
152
155
156
162245
246
251
252
255
261
263
265
266
271356
364
365
371
411
412
413
423
431
432506
516
523
526
532
546
565
606
612
624 054
065
071
072
073
074
11 4
11 5
11 6
122165
172
174
205
212
223
225
226
243
244274
306
311
315
325
331
332
343
346
351445
446
452
454
455
462
464
465
466
503627
631
632
654
662
664
703
712
723
731
732
734
743
754
DTCS-CODE
-023DTCS-CODE
-754 ----------------
----------------
Code 023 setting Code 754 setting
67.0
69.3
71.9
74.4
77.079.7
82.5
85.4
88.5
91.594.8
97.4
100.0
103.5
107.2110.9
114.8
118.8
123.0
127.3131.8
136.5
141.3
146.2
151.4156.7
159.8
162.2
165.5
167.9171.3
173.8
177.3
179.9
183.5186.2
189.9
192.8
196.6
199.5203.5
206.5
210.7
218.1
225.7229.1
233.6
241.8
250.3
254.1
TONE-FREQ
--88.5TONE-FREQ
254.1 ----------------
----------------
88.5 Hz setting 254.1 Hz setting