Icom Ic-Prc100 Communications Receiver For Computer Instruction Manual

							17
3BASIC OPERATION
Setting a frequency
Depending on the situation, the receive frequency can be set
using the following methods. Frequencies can be set from
0.01000 to 1300.00000 MHz.
DUsing the tuning dial
➥Click the tuning dial with the sub mouse button to increase
the frequency; click the tuning dial with the main mouse
button to decrease the frequency.
•The frequency changes according to the preset tuning steps. See
the next page for selecting the tuning step.
•When clicking and holding either button the frequency scrolls up
or down.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function Controller’when it
is not displayed.
wClick [FREQJ] or [FREQK] on the function controller to
set the frequency according to the selected tuning step.
•The frequency changes according to the selected tuning steps.
See the next page for selecting the tuning step.
•When clicking and holding either button the frequency scrolls up
or down.
DUsing the keypad 
➥Click the desired numeral buttons, then click [ENT] to set
the frequency.
•When making a mistake while inputting a frequency, click [CE] to
clear the input and return to the previous frequency.
•When you want to change the 100 kHz digit and below, click [•]
first, then the numeral buttons and then [ENT].
•When you want to set the 100 kHz digit and below to 0, input the
MHz digits and then click [ENT].
•When inputting a frequency outside of the allowed receive fre-
quency range, the previously selected frequency is automatically
selected after clicking [ENT].
DUsing the PC keyboard
➥Push the desired numeral keys, then push [Enter] to set the
frequency.
•When inputting from the keyboard, click anywhere in the receiver
screen first, then begin inputting from the keyboard.
•When making a mistake while inputting a frequency, push [Esc]
to clear the input and return to the previous frequency.
•When you want to change the 100 kHz digit and below, push [•]
first, then the numeral keys and then [Enter].
•When you want to set the 100 kHz digit and below to 0, input the
MHz digits and then push [Enter].
•Push [b] or [a] to set the frequency according to the selected
tuning step.
•When inputting a frequency outside of the allowed receive fre-
quency range, the previously selected frequency is automatically
selected after clicking [Enter]. 
						

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3BASIC OPERATION
Setting a tuning step
When using the tuning dial or [FREQJ]/[FREQK] buttons to
change the frequency, or when a scan function is activated,
the frequency changes in increments determined by the set
tuning step. This can be changed if desired.
The following tuning step are available.
•1 kHz•5 kHz•6.25 kHz•9 kHz•10 kHz•12.5 kHz
•15 kHz•20 kHz•25 kHz•30 kHz•50 kHz•100 kHz
•500 kHz•1 MHz•10 MHz
DUsing the multi-function receiver screen
➥Click [TSJ] or [TSK] to set the desired tuning step.
•The selected tuning step is displayed in the function display.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function Controller’when it
is not displayed.
wClick [TSJ] or [TSK] on the function controller screen to
select the desired tuning step.
•The selected tuning step is displayed in the information display if
the information display is in use.
Receive mode selection
Receive modes are determined by the physical properties of
the radio signals. The receiver has 3 receive modes: FM, AM
and WFM modes.
Typically, AM mode is used for the AM broadcast stations
(0.495–1.620 MHz) and air band (118–135.995 MHz), and
WFM is used for FM broadcast stations (76–107.9 MHz).
When using the automatic mode function, a receive mode,
tuning step and filter selection are automatically selected after
inputting a frequency.
DUsing the multi-function receiver screen
➥Click [FM], [WFM], [AM] or [AUT-M] to select the desired re-
ceive mode.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function Controller’when it
is not displayed.
wClick [AM], [FM], [WFM] or [AUT-M] to select the desired
receive mode. 
						

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3BASIC OPERATION
Automatic mode selection
An automatic mode function is available to automatically set
the receive mode, IF filter passband width and tuning step
after inputting a frequency.
Each click of the [AUT-M] button toggles the automatic mode
function on and off.
•For the simple function receiver screen, the [AUT-M] button is on the
function controller screen.
DSetting the automatic mode function
The default setting for the automatic mode function can be
added to, changed or deleted. Up to 20 ranges can be mem-
orized into the automatic mode function settings.
qFor the multi-function receiver screen, click the [SET] but-
ton to call up the setting screen.
For the simple function receiver screen, click the [MENU]
button and select the ‘Function Setting (SET)’to call up the
setting screen.wClick the [Auto Mode] tab to display the automatic mode
list.
eClick a cell in the [Freq Low] column and the desired line.
rInput the lower frequency of the frequency range from the
keyboard, then push [Enter].
•When nothing is input into the [Freq Low] or [Freq High] column,
settings for other columns cannot be made.
•When inputting a new frequency, other data automatically ap-
pears in the other column.
•To delete a frequency range setting, enter [0] or [Space] into the
[Freq Low] column from the keyboard.
tInput the higher frequency of the frequency range into the
[Freq High] column, push the [Enter] key.
ySet other data such as mode, tuning step, etc., if desired.
•Double-click the desired cell, select the desired item and double-
click the selection.
uClick the close ([]) button to close the setting screen.
Click to bring up the 
setting screen. 
						

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3BASIC OPERATION
Setting squelch level
The squelch function sets a minimum receive signal level
below which no audio is emitted from the speaker. This con-
veniently prevents noise and static from being emitted when
receiving weak signals or no signals at all.
Further setting of squelch removes weak signals. The remove
level is displayed on the S-meter (S-meter squelch). The
squelch does not open if a signal below the set S-meter level
is received.
DUsing the multi-function receiver screen
➥Click the [SQUELCH] control with the sub mouse button to
increase the squelch level (tight squelch); click the
[SQUELCH] control with the main mouse button to de-
crease the squelch level (loose squelch).
•The S-meter squelch level is displayed in the function display.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function controller’when it is
not displayed.
wClick [SQLJ] or [SQLK] on the function controller to select
the desired squelch level.
•The S-meter squelch level is displayed under the frequency indi-
cation.
IF filter selection
Increasing or decreasing the width of incoming signals can
help eliminate interference. Available filters vary according to
the receive mode. See the table below.
K: Factory setting;K: Selectable;–: Not selectable
DUsing the multi-function receiver screen
➥Click the [WID] or [NAR] buttons to toggle between filter
widths.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function controller’when it is
not displayed.
wClick [WID] or [NAR] on the function controller to select the
filter width.
6 kHz IF filter
FM
WFM
AMK
–
K15 kHz
K
–
– K50 kHz
K
K230 kHz
K–
K 
						

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3BASIC OPERATION
Attenuator function
Strong signals (such as from broadcast stations, pocket beep-
ers, nearby amateur radio stations, etc.) can cause distortion
of receive signals. The attenuator function can reduce signal
strength of interfering signals by approx. 20 dB.
DUsing the multi-function receiver screen
➥Click [ATT] to toggle the attenuator function ON and OFF.
•“AT T”appears in the function display.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function controller’when it is
not displayed.
wClick [ATT] on the function controller to toggle the attenua-
tor function ON and OFF.
•“AT T”appears in the information display if the information display
is in use.
Automatic noise limiter
The automatic noise limiter removes noise components from
an AM signal.
DUsing the multi-function receiver screen
➥Click [ANL] to toggle the automatic noise limiter ON and
OFF.
•“ANL”appears in the function display.
DUsing the simple function receiver screen
qClick [MENU] and select the ‘Function controller’when it is
not displayed.
wClick [ANL] on the function controller to toggle the auto-
matic noise limiter ON and OFF.
•“ANL”appears in the information
display if the information display
is in use.
[ATT]
[ANL] 
						

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4MEMORY CHANNELS
General
The receiver has 1000 memory channels in 20 banks for stor-
age of often-used frequencies.
DMemory channel contents
The following information can be programmed into memory
channels:
•Memory channel name 
•Operating frequency (p. 17)
•Receive mode (p. 18)
•IF filter selection (p. 20)
•Attenuator ON/OFF (p. 21)
•Tuning step (p. 18)
•Select memory scan setting (p. 31)
•Memory skip scan setting (p. 31)
•Tone squelch ON/OFF and it’s frequency (p. 36)
•Memory channel comment 
Saving memory channels
The memory channels can be stored as a PCfile.
DUsing the multi-function receiver screen
➥Select [Save] or [Save As] on the [File] menu to back up
memory channel data.
➥Select [Open] on the [File] menu to open memory channel
data.
➥Select [New] on the [File] menu to make a new file for
memory channel data.
DUsing the simple function receiver screen
➥Select [Save] or [Save As] in the [File] menu on the short-
cut menu to back up memory channel data.
➥Select [Open] in the [File] menu on the shortcut menu to
open memory channel data.
➥Select [New] in the [File] menu on the shortcut menu to
make a new file for memory channel data. 
						

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4MEMORY CHANNELS
Selecting a memory channel
DUsing the up/down button on the multi-
function receiver screen
qClick the [BANK∧] or [BANK∨] button to select a memory
bank.
wClick the [CH
∧] or [CH∨] button to select a memory chan-
nel.
DUsing the [Mch] button on the multi-
function receiver screen
➥Click the desired numeral buttons (1 to 50), then click [Mch]
to set memory channel.
•When making a mistake while inputting a memory channel, click
[CE] to clear the input and return to the previous frequency.
DUsing the simple function receiver screen
qClick the [BANK] button and select a desired memory
bank.
wClick a numeral button, [1]–[5], to select memory channels
1–5.
•Use the memory list screen to select memory channels 6
to 50.
DUsing the memory list screen
qCall up the memory list screen if it is not displayed.
•For the multi-function receiver screen, click the memory list
screen button or select ‘Memory List’from the [View] menu.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Memory List.’
wClick [BANK#]/[BANK$] or select a bank name with [$]
to select a memory bank.
eClick the memory channel number in the [CH] column to
set the desired memory contents.
•Click the data area you want to call up, then click [Rx Entry] to
call up the data.
w Select memory bank e Select memory channel 
						

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4MEMORY CHANNELS
Memory channel programming
Each memory bank (1 to 20) can hold up to 50 channels and
can store the information listed below.
Bank name, memory name, frequency, mode, filter, atten-
uator, tuning step, select memory scan, skip channel, tone
squelch and remark.
DUsing the multi-function receiver screen
qClick the [BANK∧] or [BANK∨] button to select a memory
bank to be programmed.
wClick the [CH
∧] or [CH∨] button to select a memory chan-
nel to be programmed.
eSet a frequency and mode, etc. that you want to memo-
rize.
rClick the [MW] button to program the displayed frequency
into the memory channel.
•“NONAME”appears in the memory channel indicator.
DUsing the memory list screen
qCall up the memory list screen if it is not displayed.
•For the multi-function receiver screen, click the memory list
screen button or select ‘Memory List’from the [View] menu.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Memory List.’
wClick [BANK#]/[BANK$] or select a bank name with [$]
to select a memory bank.eClick a cell in the [Frequency] column and the desired
memory channel line.
rInput the receive frequency from the keyboard, then push
[Enter].
•Input frequency first in order for other data to be input.
tSet other data such as mode, tuning step, etc., if desired.
•Double-click the desired cell, select the desired item and double-
click the selection.
Clearing a memory channel
DUsing the multi-function receiver screen
qSelect a desired memory channel to be cleared with
[BANK
∧]/[BANK∨] and [CH∧]/[CH∨].
wClick the [MCL] button to clear the memory channel con-
tents.
e Select desired cellt Set other data, if desired 
						

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4MEMORY CHANNELS
Editing the memory list
DEditing a bank name
Bank names and memory names can be set or changed for
the screen being used.
qCall up the memory list screen if it is not displayed.
•For the multi-function receiver screen, click the memory list
screen button or select ‘Memory List’from the [View] menu.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Memory List.’
wClick [BANK#]/[BANK$] or select a bank name with [$]
to select a memory bank.
eClick the memory bank name indicator or a memory name
cell on the memory list screen.
•The memory bank name or memory name is highlighted.
rInput the name from the keyboard.
•Push [Enter] first to modify the previously input name.
tPush the [Enter] key to input the name.
DInserting and deleting channels
New blank channels can be inserted into the channel list and
channels no longer needed can be deleted from the channel
list.
qCall up the memory list screen if it is not displayed.
•For the multi-function receiver screen, click the memory list
screen button or select ‘Memory List’from the [View] menu.
•For the simple function receiver screen, click the [MENU] button
and select the ‘Memory List.’
wClick [BANK#]/[BANK$] or select a bank name with [$]
to select a memory bank.
eClick the position where you want to insert/delete a chan-
nel.
rClick [Insert CH] or [Delete CH] to insert or delete the
channel at the selected position.
•When memory channel 50 is not a blank channel, a new blank
channel can not be inserted. Delete a channel or use another
memory bank in this case.
Memory name column
Memory bank name 
						

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5SCAN OPERATION
Scan typesUp to 20 programmed scan ranges, memory scan, memory
select scan, memory skip scan, mode select memory scan
and auto memory write scan provide scanning versatility.
PROGRAMMED SCAN
(p. 27)Repeatedly scans between 
two user-programmed fre-
quencies. Used for checking 
for frequencies within a 
specified range such as 
repeater output frequencies, 
etc.
Scan
Jump Scan edges
Scan edgeScan edge
SELECT MEMORY SCAN
(p. 31)Repeatedly scans only select 
memory channels within a 
memory bank. This function 
can be turned ON/OFF in 
[Memory SCAN] tab. Select 
channels can be set in the 
memory list screen.
Not yet
programmed
ch 50ch 1 ch 2 ch 3
ch 4
ch 5 ch 6 ch 49
Not yet programmed
ch 50ch 1 ch 2 ch 3
ch 4
ch 5 ch 6 ch 49
MEMORY SKIP SCAN
(p. 31)Skips unwanted memory 
channels that inconvenient-
ly stop scanning. This func-
tion can be turned ON/OFF 
in [Memory SCAN] tab. 
Skip channels can be set in 
the memory list screen.
Not yet
programmed
ch 50ch 1 ch 2 ch 3
ch 4
ch 5 ch 6 ch 49
MEMORY SCAN 
(p. 30)Repeatedly scans memory 
channels within a memory 
bank (1–20).
Not yet
programmed
SKIP
ch 50ch 1 ch 2 ch 3
SEL
SELSKIP
SEL SELSEL
SEL
MODE SELECT MEMORY 
SCAN (p. 31)Repeatedly scans only 
selected mode channels 
within a memory bank. This 
function can be set in 
[Memory SCAN] tab of the 
setting screen.
FM
AM
FM FM FMFM
FM
ch 5 ch 6 ch 49
ch 4
AUTO MEMORY WRITE
SCAN (p. 29)The frequencies that the 
programmed scan stops 
are automatically program-
med into a selected memo-
ry bank.
ch 1ch 2
Pause
Program ProgramPause Scan