Icom Ic_r20 Communications Reciever Instruction Manual

38
7
SCAN OPERATION
■Auto-memory write scanThis scan is useful for searching a specified frequency range
and automatically storing busy frequencies into memory
channels. The auto-memory write scan is performed with any
VFO scan types (ALL, BAND, PROG).
qSelect VFO mode with [VFO MHz].
wPush and hold [MODE SCAN]to enter scanning type se-
lection condition.
eRotate [R-DIAL]to select the desired scanning type.
•“ALL” for full scan; “BAND” for band scan, “PROG-xx” for pro-
grammed scan (xx= 0 to 24;...

39
7
SCAN OPERATION
Memory channels can be set to be skipped for memory skip
scan. In addition, memory channels can be set to be skipped
for both memory skip scan and frequency skip scan. These
are useful to speed up the scan interval.
qSelect a memory channel:
➥Push [MR S.MW]to select memory mode.
➥Rotate [R-DIAL]to select the desired channel to be a
skip channel/frequency.
wPush [MR S.MW]for 1 sec. to enter the select memory
write condition.
ePush [8 SET]several times to select “SKIP.”
•While pushing...

40
7
SCAN OPERATION
D D
Scan pause timerThe scan pauses when receiving signals according to the
scan pause time. It can be set from 2 to 20 sec. or unlimited.
qPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select “SET EXPAND,” then push
[8 SET].
eRotate [R-DIAL]to turn the expand set mode selection
ON, then push [8 SET].
rRotate [R-DIAL]to select “SCAN PAUSE,” then push
[8 SET].
tRotate [R-DIAL]to set the desired scan time to pause from
2–20 sec. (2 sec. steps) and “HOLD,” then push [8...

41
7
SCAN OPERATION
D D
Scan resume timerThe scan restarts after the signal disappears according to the
resume time. It can be set from 0–5 sec. or unlimited.
qPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select “SET EXPAND,” then push
[8 SET].
eRotate [R-DIAL]to turn the expand set mode selection
ON, then push [8 SET].
rRotate [R-DIAL]to select “SCAN RESUME,” then push
[8 SET].
tRotate [R-DIAL]to set the desired scan resume timer from
0–5 sec. (1 sec. steps) and “HOLD.”
•“0SEC” : Scan...

42
8
PRIORITY WATCH
■Priority watch typesPriority watch checks for signals on the frequency every
5sec. while operating on a VFO frequency or scanning. The
receiver has 3 priority watch types to suit your needs. 
The watch resumes according to the selected scan resume
condition. See the left page for details.
NOTE: If the pocket beep function is activated, the receiver
automatically selects the tone squelch function when pri-
ority watch starts.D D
About priority beep functionWhen receiving a signal on...

43
8
PRIORITY WATCH
■Priority watch operationD
D
Memory channel watch and memory scan watchqSelect VFO mode; then, set an operating frequency.
wSet the watching channel(s).
For memory channel watch:
Select the desired memory channel.
For memory scan watch:
Select memory mode, or the desired bank group; then,
push [MODE SCAN]for 1 sec. to start memory/bank scan.
ePush [8 SET]for 1 sec. to enter set mode.
rRotate [R-DIAL]to select “PRIORITY WATCH,” then push
[8 SET].
tRotate [R-DIAL]to turn the priority...

44
8
PRIORITY WATCH
D D
VFO scan watchqSelect memory mode.
•Select a memory bank, if desired.
wPush [MODE SCAN]for 1 sec. to start memory/bank scan,
if desired.
While scanning memory/bank channels:
Starts memory/bank scan first. Memory/bank scan can-
not be started after VFO scan is started.
ePush [8 SET]for 1 sec. to enter set mode.
rRotate [R-DIAL]to select “PRIO,” then push [8 SET].
tRotate to turn the priority watch ON, then push [8 SET].
•Select “BELL” if the priority beep function is necessary....

45
COMFORTABLE RECEIVING
9■Tone/DTCS squelch operationThe tone or DTCS squelch opens only when receiving a sig-
nal with the same pre-programmed subaudible tone or DTCS
code, respectively. You can silently wait for the specified sig-
nal using the same tone.
qSet the desired frequency in FM mode.
wWhile pushing [7 TONE], rotate [R-DIAL]to select the de-
sired squelch condition from “TSQL,” “TSQLS,” “DTCS,”
“DTCSS,” “VSC” and “OFF.”•One of “TSQL,” “ TSQLS,” “DTCS,” “DTCSS” and “VSC”
appears according to...

46
9
COMFORTABLE RECEIVING 
■Tone squelch frequency/DTCS code setting88.5 Hz and 023 is set as the default for the tone squelch fre-
quency and the DTCS code, respectively. The frequency and
code can be selected as desired.
qPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select “SET EXPAND,” then push
[8 SET].
eRotate [R-DIAL]to turn the expanded set mode ON, then
push [8 SET].
rRotate [R-DIAL]to select “TONE FREQ” when selecting
the tone squelch frequency; select “DTCS CODE” when
selecting...

47
9
COMFORTABLE RECEIVING
■DTCS polarity settingAs well as the code setting, the polarity setting is also avail-
able for the DTCS operation. When a different polarity is set,
the DTCS never releases audio mute even when a signal with
matched code number is received.
qPush [8 SET]for 1 sec. to enter set mode.
wRotate [R-DIAL]to select “SET EXPAND,” then push
[8 SET].
eRotate [R-DIAL]to turn the expanded set mode ON, then
push [8 SET].
rRotate [R-DIAL]to select “DTCS POLARITY,” then push
[8 SET].tRotate...