Icom Ic-Prc100 Communications Receiver For Computer Instruction Manual

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5SCAN OPERATION
Programmed scan
Programmed scan automatically searches for signals within
a specified frequency range.
For programmed scan, scan edges must be programmed
in advance. See the next section for details.
DUsing the multi-function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wClick the [SET] button to call up the setting screen if it is
not displayed.
eClick the [Program SCAN] tab to show the program list.
rSelect a programmed scan range to be scanned with the
mouse, then click the close ([]) button.
tClick the [PROG] button to start programmed scan.
•“PROG”flashes while scanning.
yTo cancel the scan, click [STOP] or [PROG].
•When the frequency is changed after cancelling a scan and a
new scan is activated, scan starts from the starting frequency of
the specified frequency range. When the frequency is not
changed, scan starts from the previously stopped frequency.
DUsing the simple function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wCall up the setting screen if it is not displayed.
•Click the [MENU] button and select the ‘Function Setting (SET).’
•When the scan controller screen is in use, click the [SET] button
on the screen.
eClick the [Program SCAN] tab to show the program list.
rSelect a programmed scan range to be scanned with the
mouse, then click the close ([]) button.
tCall up the scan controller screen if it is not displayed.
•Click the [MENU] button and select the ‘Scan Controller.’
yClick the [PROG] button in the scan controller screen to
start programmed scan.
•“Program SCAN”flashes in the scan controller screen while
scanning.
uTo cancel the scan, click [STOP] or [PROG].
•When the frequency is changed after cancelling a scan and a
new scan is activated, scan starts from the starting frequency of
the specified frequency range. When the frequency is not
changed, scan starts from the previously stopped frequency.
[PROG]
[STOP]
[SET] 
						

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5SCAN OPERATION
Setting scan edges
Settings such as frequency range, receive mode, tuning step,
etc. must be set in advance. Up to 20 settings can be pro-
grammed.
qCall up the setting screen if it is not displayed.
•For the multi-function receiver screen, click the [SET] button.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Function Setting (SET).’When the scan controller
screen is in use, click the [SET] button on the screen.
wClick the [Program SCAN] tab to show the program list.
eClick a start frequency cell in the [START] column to se-
lect the data input condition.
•When a cell is clicked, the scan edges of the line are automati-
cally set as scan edges.
rInput the start frequency into the selected cell from the
keyboard, then push [Enter] (data appears automatically in
other cells when new range is entered.).
•Data must be set in this cell or the [END] cell before data can be
set in other cells.
•To erase the data, push the [Delete] key after selecting a [START]
or [END] cell.
tSet data into other cells as desired, then click the close
([]) button to close the program list.
Selected scan edge numberSet other data, if desired
Scan edge frequency 
						

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5SCAN OPERATION
Auto memory write scan
Auto memory write scan does the same as the programmed
scan and then writes paused signal frequencies into memory
channels of a specified memory bank. Scan edges must be
programmed in advance. (p. 28)
DUsing the multi-function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wClick the [SET] button to call up the setting screen if it is
not displayed.
eClick the [Program SCAN] tab to show the program list.
rSelect the programmed scan edges to be scanned with the
mouse, then click the [Auto MW SCAN] tab.
tSelect a memory bank to be written.
•To clear the selected memory bank contents, click [All Clear].
yClick the [AUTO] button to start auto memory write scan.
•“AUTO”flashes while scanning.
uTo cancel the scan, click [STOP] or [AUTO].
DUsing the simple function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wCall up the setting screen if it is not displayed.
•Click the [MENU] button and select the ‘Function Setting (SET).’
•When the scan controller screen is in use, click the [SET] button
on the screen.
eClick the [Program SCAN] tab to show the program list.
rSelect the programmed scan edges to be scanned with the
mouse, then click the [Auto MW SCAN] tab.
tSelect a memory bank to be written.
•To clear the selected memory bank contents, click [All Clear].
yCall up the scan controller screen if it is not displayed.
•Click the [MENU] button and select the ‘Scan Controller.’
uClick the [AUTO] button to start auto memory write scan.
•“Auto MW SCAN”flashes while scanning.
iTo cancel the scan, click [STOP] or [AUTO].
[AUTO]
[STOP]
[SET] 
						

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5SCAN OPERATION
Memory scan
This function searches all memory channels in a selected
memory bank.
DUsing the multi-function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wClick the [BANK
∧] or [BANK∨] button to select the de-
sired memory bank.
•When using the memory list screen, click [BANK#]/[BANK$]
or select a bank name with [$] to select a memory bank.
eClick the [SET] button to call up the setting screen if it is
not displayed.
rClick the [Memory SCAN] tab.
tMake sure the check boxes are not checked (%) then click
the close ([]) button.yClick the [MEMO] button to start memory scan.
•“MEMO”flashes while scanning.
uTo cancel the scan, click [STOP] or [MEMO].
DUsing the multi-function receiver screen
qMake sure the squelch is set to the threshold point. (closed
condition)
wClick the [BANK] button and select the desired memory
bank.
•When using the memory list screen, click [BANK#]/[BANK$]
or select a bank name with [$] to select a memory bank.
eCall up the setting screen if it is not displayed.
•Click the [MENU] button and select the ‘Function Setting (SET).’
•When the scan controller screen is in use, click the [SET] button
on the screen.
rClick the [Memory SCAN] tab.
tMake sure the check boxes are not checked (%) then click
the close ([]) button.
yClick the [MEMO] button in the scan controller screen to
start memory scan.
•“Memory SCAN”flashes while scanning.
uTo cancel the scan, click [STOP] or [MEMO].
Not checked for the memory scan 
						

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5SCAN OPERATION
Versatile memory scan
Using the [Memory SCAN] tab in the setting screen you can
set conditions specific only to memory channels during mem-
ory scan.
qCall up the setting screen if it is not displayed.
•For the multi-function receiver screen, click the [SET] button.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Function Setting (SET).’When the scan controller
screen is in use, click the [SET] button on the screen.
wClick the [Memory SCAN] tab.
eMake sure the desired check boxes are checked (%).•When selecting the [SEL] box (select memory scan), only
memory channels specified as SEL (select) are scanned.
•When selecting the [SKIP] box (memory skip scan),
memory channels specified as SKIP channels are not
scanned.
•When selecting the [MODE SEL] box (mode select mem-
ory scan), only memory channels programmed with the
specified receive mode (in the [Select Mode] check box)
are scanned.
rClick the close ([]) button.
tStart the desired memory scan.•For the multi-function receiver screen, click the [MEMO] button.
•For the simple function receiver screen, click the [MEMO] button
in the scan controller screen.
yTo cancel the scan, click [STOP] or [MEMO].
•All settings can be used simultaneously.
•SEL, SKIP and receive mode are set in the memory list
screen.
•At least 2 memory channels must be programmed with
the desired condition for scan to proceed.
Check for select memory scan Check for memory skip scan
Check for mode 
select memory scanCheck the desired 
modes for mode select
memory scan 
						

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5SCAN OPERATION
Scan resume condition
When receiving a signal, scan automatically pauses on that
signal. The scan resume condition sets the time that the scan
pauses before resuming or whether scan stops instead of
pausing.
qCall up the setting screen if it is not displayed.
•For the multi-function receiver screen, click the [SET] button.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Function Setting (SET).’When the scan controller
screen is in use, click the [SET] button on the screen.
wClick the [SCAN Delay] tab, then click to select a resume
condition from [DELAY Timing].
(a) ‘Pause until Signal disappears’
Scan pauses when receiving a signal and remains
paused until the signal disappears.(b) ‘Delay Volume’
When setting a delay time using the [DELAY] control
(multi-function receiver screen) or [DELAY] scroll bar
(scan controller screen), scan pauses when receiving a
signal and then resumes after the specified delay.
(c) ‘SCAN Stop’
When a signal is received during scan, scan stops and
does not resume.
eClick to select a restart delay time from [Restart Delay].
This setting is valid when selecting (a) or (b) above.
(a) 0 Sec.
Scan resumes immediately after the signal disappears.
(b) 1 Sec.
Scan resumes 1 sec. after the signal disappears.
(c) 2 Sec.
Scan resumes 2 sec. after the signal disappears.
rClick the close ([]) button to close the setting screen.
[DELAY][DELAY] 
						

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5SCAN OPERATION
Scan speed setting
The searching speed of frequencies or memory channels is
variable.
DUsing the multi-function receiver screen
➥Click the [SPEED] control with the sub mouse button to in-
crease the scan speed; click the [SPEED] control with the
main mouse button to decrease the scan speed.
•When clicking and holding the control, the scan speed scrolls up
or down.
DUsing the simple function receiver screen
qCall up the scan controller screen if it is not displayed.
•Click the [MENU] button and select the ‘Scan Controller.’
wDrag the [SPEED] scroll bar upward to increase the scan
speed and downward to decrease the scan speed.
[SPEED]
[SPEED] 
						

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6BAND SCOPE
Operation
The band scope function allows you to visually check a spec-
ified frequency range.
Receive audio is muted while monitoring the band scope.
Push [s/❙❙] to pause sweeping and receive the audio.
DUsing the multi-function receiver screen
qClick the sweep start/pause button ([s/❙❙]) to begin a
sweep; signal conditions appear starting from the center of
the range.
•Conditions over the entire set frequency span can be observed
around the center frequency of the currently received frequency.
wClick the [SPAN+] or [SPAN–] button to select the sweep
width through SPAN1 (±100 kHz) to SPAN4 (±2 MHz).
eClick the [TSJ] or [TSK] button to select the sweep tuning
step.
•“LIMIT”appears when a tuning step greater than the sweep step
range is selected.
rClick the waveform to select the frequency of the signal.
•Click the [s/❙❙] button to pause a sweep and monitor the fre-
quency. Repeat to resume the sweep.
•While pausing the band scope, you can also select the frequency
by clicking the waveform. The current receive frequency is
marked by a dotted line and the previous receive frequency is
displayed at center.
tClick the sweep stop button ([‘]) to cancel a sweep.
DUsing the simple function receiver screen
qCall up the band scope screen if it is not displayed.
•Click the [MENU] button and select the ‘Band Scope.’
wClick the sweep start/pause button ([s/❙❙]) to begin a
sweep; signal conditions appear starting from the center of
the range.
•Conditions over the entire set frequency span can be observed
around the center frequency of the currently received frequency.
eClick the [∫] or [√] button to select the sweep width
through SPAN1 (±100 kHz) to SPAN4 (±2 MHz).
•Choose [SPAN1] when band conditions are crowded (many sig-
nals are present); choose [SPAN4] when few signals are present.
rClick the [TSJ] or [TSK] button on the function controller
screen to select the sweep tuning step.
•Click [MENU] and select the ‘Function controller’when it is not
displayed.
•“LIMIT”appears when a tuning step greater than the sweep step
range is selected.
Click to select sweep width. Click to start or pause sweeping. 
						

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6BAND SCOPE
tClick the waveform to select the frequency of the signal.
•Click the [s/❙❙] button to pause a sweep and monitor the fre-
quency. Repeat to resume the sweep.
•While pausing the band scope, you can also select the frequency
by clicking the waveform. The current receive frequency is
marked by a dotted line and the previous receive frequency is
displayed at center.
yClick the close ([]) button to stop sweeping and close the
band scope screen.
Changing the automatic
sweep step limit
The frequency steps used while sweeping are automatically
set according to the tuning step. However, these steps can be
defined using the [BAND SCOPE] tab on the setting screen.
qCall up the setting screen if it is not displayed.
•For the multi-function receiver screen, click the [SET] button.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Function Setting (SET).’When the scan controller
screen is in use, click the [SET] button on the screen.
wClick the [BAND SCOPE] tab.
eClick a frequency step range from inside the [Automatic
Sweep-Step Limit].
•The sweep step range can be selected from one of 1 kHz to 100
kHz, 1 kHz to 50 kHz or 1 kHz to 25 kHz.
rClick the close ([]) button to close the setting screen.
DAbout the limit indicator
When using the band scope function and the selected tuning
step (TS) is outside the automatic sweep step setting, [LIMIT]
appears in the band scope display. This indicates that the tun-
ing step (TS) and the sweep step width are not the same. 
						

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7TONE SQUELCH OPERATION
The tone squelch opens only when receiving a signal con-
taining a matching subaudible tone in FM mode. For exam-
ple, you can silently wait for calls from group members using
the same tone in an amateur band.
DUsing the multi-function receiver screen
qClick the [FM] button to select FM mode.
wClick the [T-SQL] button to bring up the [TONE SQUELCH]
dialog box.
•“T-SQL”appears in the function display.
eClick the [$] button, then select the desired tone squelch
frequency.
•Fifty-one tone frequencies from 67.0 to 254.1 Hz are available.
rClick the close ([]) button to close the [TONE SQUELCH]
dialog box.
tWhen the received signal includes a matching tone,
squelch opens and the signal can be heard.
•When the received signal’s tone does not match, tone squelch
does not open, however, the S-indicator shows signal strength.
yClick the [T-SQL] button to cancel the tone squelch.
•“T-SQL”disappears.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function Controller’when it
is not displayed.
wClick the [FM] button in the function controller screen to se-
lect FM mode.eClick the [TSQL] button to bring up the [TONE SQUELCH]
dialog box.
•“T-SQL”and tone squelch frequency appear in the information
display.
rClick the [$] button, then select the desired tone squelch
frequency.
•Fifty-one tone frequencies from 67.0 to 254.1 Hz are available.
tClick the close ([]) button to close the [TONE SQUELCH]
dialog box.
yWhen the received signal includes a matching tone,
squelch opens and the signal can be heard.
•When the received signal’s tone does not match, tone squelch
does not open, however, the S-indicator shows signal strength.
uClick the [TSQL] button to cancel the tone squelch.
•“T-SQL”and tone squelch frequency disappear.
•Available tone squelch frequencies (unit: Hz)
67.0
69.3
71.0
71.9
74.4
77.079.7
82.5
85.4
88.5
91.5
94.8097.4
100.0
103.5
107.2
110.9
114.8118.8
123.0
127.3
131.8
136.5
141.3146.2
151.4
156.7
159.8
162.2
165.5167.9
171.3
173.8
177.3
179.9
183.5186.2
189.9
192.8
196.6
199.5
203.5206.5
210.7
218.1
225.7
229.1
233.6241.8
250.3
254.1