IC-PCR1000

Contents CONTENTS Menu command Basic operation Memory functions Scan functions Band scope functions DTMF remote function Convenient functions GETTING STARTED Launching the IC-PCR1000 program Changing receiver screens Hiding components in component screen Changing the volume Setting a squelch level Setting the noise squelch Setting the S-meter squelch Setting the VSC (Voice Scan Control) Selecting a receive mode 8 8
Using the automatic mode function Setting a receive frequency Inputting a frequency with the numeral buttons Setting a frequency with the main dial Setting a frequency with the tuning button Changing the tuning step Programmable tuning step Center indicator Memory channel Calling up a memory channel Selecting a memory channel with the [UP]/[DOWN] buttons
Selecting a memory channel with the numeral buttons 21 Writing to a memory channel Setting/changing bank names and memory names Deleting memories Editing the memory channel list Calling up a memory bank using a 22
bank name Inserting and deleting channels Receiving a specific memory channel Saving a memory channel list CREATING A NEW FILE Opening a file Using the scan functions Before using the scan functions Setting the scan resume condition Scan resume delay time Scanning for signals within a specified frequency range Operating program scan Operating auto memory write scan Editing programmed channels Searching memory frequencies (memory scan) Memory scan options Changing the scan direction
Temporarily muting receive audio Receiving weak signals Frequency drift during receive Noise Blanker Automatic Gain control Attenuator Interference from nearby signals IF filter IF shift Tool bar Tone squelch Using the DTMF remote Setting the remote functions Confirming the RS-232C port Changing the RS-232C port Using the band scope function Selecting the frequency span Changing the automatic sweep step limit LIMIT indicator
Using the band scope optional functions Pick up signals General functions and terminology Component screen Radio screen Communications receiver screen

Contents

Getting started
Launching the IC-PCR1000 program
Turning the IC-PCR1000 program on and off Changing receiver screens Hiding components in the component screen
Basic operation General functions and terminology Memory functions Scan functions Band scope functions DTMF remote functions Convenient functions

Menu commands

Software update information
Software update information will be available at the Icom America home page: http://www.icomamerica.com/
File (F) Turning the software on/off, saving memory channel contents or quitting the program View (V) Selecting the screens or hiding/showing the DTMF remote Option (O) Setting the COM port and tool bar. Help (H) Displaying this help file and version information

Basic operation

Changing the volume
Setting a threshold receive signal level for volume Setting the noise squelch Setting the S-meter squelch
Setting VSC (Voice Scan Control) Selecting a receive mode
Using the automatic mode function Setting a receive frequency Using the numeral buttons Using the main dial Using the tuning button About the center indicator Changing the tuning step

Memory functions

Calling up a memory channel Using the channel Using the numeral buttons to call up a memory channel Writing to a memory channel Setting/changing bank names and memory names Deleting memories / buttons to call up a memory
Memory channel lists Calling up a memory bank using a memory bank name
About the programmable tuning step Inserting and deleting channels Receiving a specified channel Saving a memory channel list Opening a file Creating a new file

Scan functions

Before using the scan functions Scanning for signals within a specified frequency range Scanning frequencies in memory channels Editing programmed channels Changing the scan direction during scanning Memory scan options

Band scope functions

Using the band scope function Selecting the frequency span Changing the automatic sweep step limit About pick up signals Using the band scope optional functions

DTMF remote functions

Using the DTMF remote function Setting the remote function
Convenient functions for receive
Temporarily muting receive audio
Receiving weak signals When the receive signal drifts When vehicle ignition noise causes interference When the receive signal strength fluctuates When strong signals cause interference When nearby signals cause interference Setting the IF filter IF shift Hiding/showing the tool bar Using the tone squelch function Confirming the RS-232C port Changing the RS-232C port

The IC-PCR1000 is a wide band communications receiver for use with a personal computer.
Frequencies in the range 0.01 to 1300 MHz (some ranges may be restricted) can be received, allowing you to listen to a wide variety of stations including amateur radio and broadcast stations. To display the functions of menu bar or tool bar icons click one of the buttons or items in the diagram below.
Launching the IC-PCR1000 software When using Windows 95 1) Before launching the program make sure the ICPCR1000 interface unit power is turned on (the LED lights when power is on). 2) Click the [Start] button and point to [Programs]. 3) Point to the IC-PCR1000 folder. 4) Click the IC-PCR1000 program. Pausing the IC-PCR1000 program Push [POWER] on the tool bar to toggle the ICPCR1000 interface unit receive circuit and the program between pause and active. <<Note>> - If the [Port Error] dialog box appears, while the program is paused and the IC-PCR1000 interface unit power is on, activate the program again. - If the problem persists, check the connections between the computer and interface unit as well as the RS-232C port. Related items Checking the RS-232C port Changing the RS-232C port
Quitting the IC-PCR1000 program Select [Exit] on the [File] menu or click the [Exit]
button in the tool bar. The Readme file contains information about the receiver. Contents Pausing and restarting the IC-PCR1000 interface unit receive circuit and program. Each click of the [POWER] button toggles the ICPCR1000 interface unit receive circuit and program between pause and active. Setting the RS-232C port. Displaying all components in the component receiver screen. Hiding/displaying the TUNING component. Hiding/displaying the METER/SCAN component. Hiding/displaying the MODE/VOL component. Hiding/displaying the BAND SCOPE component. Displaying the radio screen. Displaying the communications receiver screen. Hiding/displaying the memory channel list. Hiding/displaying the DTMF component. Quitting the IC-PCR1000 program.
When using Windows 95 1) Before launching the program make sure the power to the IC-PCR1000 interface unit is on (the LED lights). 2) Click the [Start] button and point to [Programs]. 3) Point to the IC-PCR1000 folder. 4) Click the IC-PCR1000 program.
Changing receiver screens

Click the tool bar button corresponding to the receiver screen you want to use.
For the component screen, click the [COMPO] button.
For the radio screen, click the [RADIO] button.
For the communications receiver screen, click the [RECEIVER] button.
Hiding components in the component screen
Click the tool bar button corresponding to the desired component to toggle it on and off. 1) For the TUNING component, click the [TUNING] button.
2) For the METER/SCAN component, click the [METER] button. 3) For the MODE/VOL component, click the [MODE] button. 4) For the BAND SCOPE component, click the [SCOPE] button.
Adjusting the volume to an optimum level. 1) When in the component screen, drag the [AF GAIN] scroll bar knob to the right to increase the volume and to the left to decrease the volume. 2) When in the radio screen, click the [AF UP] button to increase the volume, click the [AF DOWN] button to decrease the volume. 3) When in the communications receiver screen, right-click on the [AF GAIN] knob to increase the volume, left-click to decrease the volume. Related item Muting the receive volume
Setting a threshold receive signal level for volume (SQUELCH)
The squelch function sets a minimum receive signal level below which no audio is emitted from the speaker. This conveniently prevents noise and static from being emitted when receiving weak signals or no signals at all. Two squelch methods are available as listed below. 1) Setting a threshold for signals to be emitted Noise squelch 2) Setting a threshold for weak signals S-meter squelch

Related item

To temporarily listen to a squelched signal
Setting the noise squelch
In AM/FM mode, when the 6 or 15 kHz IF filter is activated, non-signal noise is muted. 1) When using the component screen, drag the [SQUELCH] scroll bar button to the right or left so that the BUSY indicator just goes out, to mute the noise. 2) When using the radio screen, click the [SQL ] or [SQL ] button so that the BUSY indicator just goes out, to mute the noise. 3) When using the communications receiver screen, right- or left-click the [SQUELCH] knob so that the BUSY indicator just goes out, to mute the noise.
Setting the S-meter squelch
Set the S-meter squelch so that signals below the specified level are not received. 1) When using the component screen, drag the [SQUELCH] scroll bar knob to the right or left to set the desired S-meter level. 2) When using the radio screen, click the [SQL ] or [SQL ] buttons to set the desired S-meter level. 3) When using the communications receiver screen, right- or left-click the [SQUELCH] knob to set the desired S-meter level.

Setting the VSC (Voice Scan Control)
When this function is on, signals received while scanning or when selecting a station and which open
the squelch but are not modulated (contain no voice or music, etc. components) are muted. The BUSY indicator still lights for signals but no audio is emitted. Click the [VSC] button (or indicator for the radio screen) to toggle the VSC function on and off.

Selecting a receive mode

The selected receive mode (signal type) is displayed. Click the button (or indicator for the radio screen) corresponding to the desired mode to select that mode. Available receive modes are SSB (LSB/USB), CW, AM, FM and WFM. When using the automatic mode function, a receive mode and tuning step are automatically selecting after inputting a frequency. <<Note>> - When an incorrect receive mode for a frequency is selected, distorted audio or no audio at all may result.
Using the automatic mode function
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 (or indicator for the radio screen) toggles the automatic mode function on and off. Setting 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 memorized into the automatic mode function
settings. 1) Select the component screen or communications receiver screen, then click the [SET] button to call up the [Setting] dialog box. 2) Click the [AUT-M] tab to display the automatic mode list. 3) Double click anywhere in the column corresponding to the setting you wish to edit. 4) From the keyboard, input the lower frequency of the frequency range you want to be automatic mode selection into the [Freq Low] column, push the [Enter] key. - When nothing is input into the [Freq Low] column, settings for other columns cannot be made. - When inputting a new frequency, other data automatically appears in the other column. - To delete a frequency range setting, enter [0] into the [Freq Low] column from the keyboard. 5) Edit other displayed columns as desired, then click the [Close] button to close the [Setting] dialog box.
Setting a receive frequency
Depending on the situation, the receive frequency can be set in the methods below. 1) When you know the broadcast or communication frequency Input the frequency directly with the numeral buttons. 2) When you don't know the frequency or when you want to fine tune the frequency after entering it directly Use the main dial or tuning button to select a frequency.

Pick up signals

Inputting a frequency with the numeral buttons
Frequencies can be input from 0.010000 to 1300.000000 MHz. However, when using the radio screen, frequencies can only be specified to the 10 Hz digit. 1) When in the component or communications receiver screens, click the desired numeral buttons, then click the [ENT] button to set the frequency. 2) When in the radio screen, click the [F-INP] button, input the desired frequency from the keyboard, then push the [Enter] key. <<Example 1>> Setting 0.810000 MHz Click [0] [.] [8] [1] [ENT]. <<Example 2>> Setting 7.100000 MHz Click [7] [.] [1] [ENT]. <<Example 3>> Setting 145.000000 MHz Click [1] [4] [5] [ENT]. <<Example 4>> Setting 1296.450000 MHz Click [1] [2] [9] [6] [.] [4] [5] [ENT]. <<Example 5>> Setting 1296.450000 MHz from 1296.780000 MHz (when the MHz setting remains the same) Click [.] [7] [8] [ENT].

Using the scan functions

Scan functions automatically search through a range of frequencies or a list of channels for signals. Three basic scan types are available, program scan, auto memory write scan and memory scan. 1) To automatically scan a specified range of frequencies for signals program scan , auto memory write scan 2) To automatically scan frequencies in memory memory scan
Before using the scan functions
Before activating a scan function the operations listed below must be performed in order for the scan to operate normally. Also, scan may appear to start normally but fail to pause when a signal is received. 1) Setting the squelch 2) Setting the VSC (Voice Scan Control) function 3) Setting the scan resume condition
Setting the 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. 1) Click the [SET] button to bring up the [Setting] dialog box. 2) Click the [DELAY] tab, then select a resume condition from within [DELAY Timing] and click the option button. 3) (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 TIME] scroll bar or [DELAY] knob, scan pauses when receiving a signal and then resumes after the specified delay. When a signal disappears before the specified delay time, scan resumes according to the scan resume delay time. (c) SCAN Stop When a signal is received during scan, scan stops and does not resume. When selecting (a) or (b) above, 3 levels of delay can be selected from the [Restart Delay]. 3) Click the [Close] button to close the [Setting] dialog box. Related item Scan resume delay time (When setting (a) or (b) above)

Scan resume delay time

When setting scan resume condition (a) or (b), the scan resume delay time determines the period from
when a signal disappears and scan resumes, (a), or from when the scan resume time elapses, (b), and scan resumes. 1) Click the [SET] button to bring up the [Setting] dialog box. 2) Click the [DELAY] tab, then select a delay time from within [Restart Delay] and click the option button. (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 3) Click the [Close] button to close the [Setting] dialog box.

Scanning for signals within a specified frequency range
Program scan automatically searches for signals within a specified frequency range while auto memory write scan does the same and then writes paused signals into memory channels.

Operating program scan

1) Click the [SET] button to bring up the [Setting] dialog box. 2) Click the [PROG] tab to show the program list. 3) Select a programmed scan range to be scanned with the mouse, then click the [Close] button. 4) Click the [PROG] button in the receiver screen to start program scan.
5) While scan is operating, click the [ (pause)] button to pause the scan. - Repeat this to resume the scan. Scan resumes from the paused frequency. - While pausing the scan, frequency cannot be set with the [Main dial]. 6) To cancel the scan click [STOP] or the scan start button. - When the frequency is changed after canceling 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 paused frequency.
Operating auto memory write scan
1) Click the [SET] button to bring up the [Setting] dialog box. 2) Click the [PROG] tab to show the program list. 3) Select a programmed scan range to be scanned with the mouse. 4) Click the [AUTO] tab, then choose a memory bank from the [BANK] list box and click the [Close] button. - If the memory bank to be programmed is already full, scan will not start. In such a case do one of the following. - Select a different memory bank. - Click the [All Clear] button on the [AUTO] tab to clear the data from the specified bank. - Call up and delete unneeded memory channels only. 5) Click [AUTO] in the receiver screen to start scan operation. - Scan automatically stops when all memory channels become full. 6) When you want to pause the scan temporarily, click the [ (pause)] button or scan start button.
7) Repeat this to resume scan. Scan resumes from the paused frequency. - While pausing the scan, frequency cannot be set with the [Main dial]. 8) Click the [STOP] button to cancel the scan. - When scan is started again after changing the frequency, scan starts from the beginning of the specified frequency range. - When the frequency hasn't been changed, scan starts from the previously paused frequency.

<<Note>> - While in the communications receiver screen and LSB, USB, CW or AM mode is selected, the [NB] button appears in place of the [AFC] button. The [AFC] button functions in WFM mode, but has no effect on the circuitry. - This function will not operate when a filter width of 50 kHz is set. Set a filter width of 15 kHz or less. - In rare cases, after using the automatic frequency control function, the frequency indication may change by 100 Hz.
Ignition noise (NB: Noise Blanker)
While receiving in LSB, USB, CW or AM modes, automobile ignition systems may cause pulse type noise. The noise blanker eliminates such pulse-type noise. 1) While using the component or communications receiver screen, click the [NB] button to toggle the noise blanker function on and off. 2) While using the radio screen, click the [NB] indicator to toggle the noise blanker function on and off. <<Note>> - When using the communications receiver screen and FM or WFM mode is selected, the [NB] button changes to the [AFC] button.
Poor audio due to signal strength fluctuations (AGC: Automatic Gain control)
The automatic gain control helps regulate fluctuating audio output when receiving in SSB, CW and AM modes. AGC is generally used as follows. 1) FAST (AGC indicator appears) While receiving in CW mode or while tuning. 2) SLOW (AGC indicator disappears) While receiving in SSB (LSB/USB) or AM modes.
Interference from strong signals (ATT: Attenuator)
Strong signals (such as from broadcast stations, pocket beepers, 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. 1) When using the component or communications receiver screen, click the [ATT] button to toggle the attenuator function on and off. 2) When using the radio screen, click the [ATT] indicator to toggle the attenuator function on and off.
Interference from nearby signals
Interference caused by nearby signals can be eliminated in the following ways. 1) IF filter Changes the passband width of an incoming signal 2) IF shift Shifts the passband width of the interfering signal up or down
Eliminating interference using IF filters
Increasing or decreasing the width of incoming signals can help eliminate interference. Available filters vary according to the receive mode. See the table below. FILTER 230 kHz 50 kHz 15 kHz 6 kHz 3 kHz* SSB(USB/LSB) l CW l AM l FM l WFM l
l: Factory setting; : Selectable; : Not selectable * When selecting the 3 kHz filter, 3k appears, however the actual width of the filter is 2.8 kHz. 1) When using the component or communications receiver screen, click the [WIDE] or [NAR] buttons to toggle between filter widths. 2) When using the radio screen, move the mouse over the [FILTER] indicator and left-click to decrease the filter width; right-click to increase the filter width.

Eliminating interference using IF shift
IF shift allows you to move the upper or lower edge of a signals passband to eliminate interference caused by "one" side of the signal. This function is not available when using the radio screen. 1) When using the component screen, move the mouse over the [IF-SHIFT] scroll bar knob and drag to the right or left to a position where the interfering signal is eliminated the greatest. Clicking the [CENTER] button returns the passband width to the center.
- Dragging the knob to the left shifts the passband width to the lower end of the receive signal; dragging to the right shifts the passband width to the higher end of the receive signal. 2) When using the communications receiver screen, move the mouse over the [IF-SHIFT] knob and left-click to shift the passband width to the lower end of the receive signal; right-click to shift the passband width to the higher end of the receive signal.
Hiding/showing the tool bar
Select [Tool Bar Off] on the [Option] the menu bar to hide the tool bar. Select [Tool Bar Top] or [Tool Bar Bottom] on the [Option] the menu bar to show the tool bar.
Using the tone squelch function
The tone squelch opens only when receiving a signal containing a matching subaudible tone. Transceiver users can silently wait for calls from group members using the same tone. You can silently wait for calls and receive such signals using this tone squelch function. Tone squelch can be used in FM mode only. 1) While in FM mode, click the [T] or [T-SQL] button to toggle the tone squelch function on and off. When the tone squelch function is on, the [TONE SQUELCH] dialog box and T-SQL indicator appear. *Fifty one tone frequencies from 67.0 to 254.1 Hz are available. 2) Click the [Tone frequency] list box, then click the desired frequency.
3) Click the [Close] button and the [TONE SQUELCH] dialog box disappears. <<Note>> - When using the tone squelch function, signals containing a non-matching subaudible tone or no subaudible tone cannot be received. (squelch does not open)

Using the DTMF remote

The computer can be remotely controlled using DTMF codes in FM mode. When receiving a programmed DTMF code, the IC-PCR1000 displays a message, activates a program/screen saver or plays a Windows' sound file. 1) Select FM mode. 2) Click the [DTMF] button in the tool bar to call up the DTMF component. 3) Click the [ON] button on the DTMF component to toggle the DTMF decoder circuit ON and OFF (the LED lights when the function is on). 4) Click the [REMOTE] button to toggle the DTMF remote function ON and OFF (the LED lights when the function is on). <<Note>> - When receiving a signal including a DTMF code, the received code is displayed in the DTMF indicator window. Up to 20 DTMF digits of the latest received code are displayed. Related item Setting the remote functions
Setting the remote functions
1) Click the [DTMF] button in the tool bar to call up the DTMF component. 2) Click the [ON] button on the DTMF component to toggle the DTMF decoder circuit ON and OFF
(the LED lights when the function is on). 3) Click the [SET] button to bring up the [DTMF Setting] dialog box. 4) Click one of tabs [1] to [5] for settings. 5) Enter the desired key code in the [Receive CODE] field using the keyboard. - 0 to 9, A, B, C, D, E () and F (#) can be used. 6) Select the desired action: displaying a message, executing a file or playing a Windows' sound file. - To display a message, enter the message in the [Action] field. - To execute or to play a file, enter the file name, including full path name, or select a desired file after pushing the [.] button. 7) Click the [Close] button.
Confirming the RS-232C port
1) When using the receiver, click the [PORT] button to bring up the [RS-232C PORT Number] dialog box. 2) Confirm that the port number is correct then click the [OK] button. 3) When you want to change the port number, refer to "Changing the RS-232C port."
Changing the RS-232C port
1) Click the [POWER] button in the tool bar to temporarily pause the program. 2) Click the [PORT] button to bring up the [RS-232C PORT Number] dialog box. 3) Click the desired port COM number to choose it. 4) Click the [OK] button.
Using the band scope function
The band scope function allows you to visually check a specified frequency range in AM, FM, SSB or CW mode for signals.

Using the band scope optional functions
The following optional functions are available for the band scope functions. WFM monitor function The band scope function is normally used in AM and FM modes only; this function allows it to be used as wave form monitor in WFM mode. 1/2 sweep step function This function sets the sweep step value in half of the tuning step, doubling the sweep resolution. 1) Click the [SET] button to bring up the [Setting] dialog box. 2) Click the [SCOPE] tab, select an optional function from within [Option], then click the [Close] button.

About pick up signals

When you find a signal you want to listen to when
using the band scope function, move the mouse over the signal location in the band scope display and click. The receive frequency moves to that frequency. While pausing the band scope, you can also select the displayed signal frequency by clicking the waveform. In this case, the receive frequency is marked by a dotted line and the previously received frequency is displayed at center. <<Note>> - In SSB or CW mode, push the [STOP] button ([ ] - when using the communications receiver screen) or the [ (pause)] button to receive the audio.
General functions and terminology
Component screen Radio screen Communications receiver screen

Component screen

For a description of labels and functions or when you want to learn more in general about this screen, see the paragraphs on following pages.
The screen shot shows the IC -PCR1000 Revision 1.0J.
FREQ (Frequency) indication Indicates the receive frequency and data as it is being input such as memory channel numbers, etc.
MEMO (Memory) indicator Indicates the memory channel (and its name if it has one) being received.
MEMO (Memory channel) / buttons Used to change the memory channel being received. BANK (Memory bank) indicator Indicates the memory bank (and its name if it has one) being received.
- The [BANK] button changes the indication.
BANK (Memory bank) button Used to change the memory bank number indication and memory bank name indication when using the component screen.
- If a memory bank has no name, choosing the name indication does nothing.
BANK (Memory bank) / buttons Used to change the memory bank being received. TS (Tuning step) indicator This is the frequency increment used when selecting a frequency using the [Main dial] and when searching for signals using a scan function.
TS (Tuning step) / buttons Used to change the tuning step. Numeral buttons ([0] to [9]) Used to input a receive frequency or memory channel directly. (Decimal) button Used to set the MHz digit when inputting a frequency. CE (Clear) button Used to clear mistakes while inputting a receive frequency or memory channel. Mch (Memory channel) button
Used to set the numeral buttons for memory channel input. ENT (Enter) button Used to set the numeral buttons for frequency input. Main dial Used to select a receive frequency. MCL (Memory clear) button Used to clear the contents of unneeded memory channels. MW (Memory write) button Writes the current receive frequency into a memory channel. Signal meter Indicates the receive signal strength. Also indicates the S-meter squelch receive level set via the [SQUELCH] scroll bar.

- When using the radio screen, frequency is indicated only to the 10 Hz digit. MEMO (Memory) indicator Indicates the memory channel (and name if it has one) being received. MEMORY CH (Memory channel) / buttons Change the memory channel in 10 channel increments. Push the memory channel button (e.g. [0] to [9], [10] to [19]) to select the memory channel selection.
Memory channel buttons Set the memory channel. To display other memory channels push [MEMORY CH / ]. BANK (Memory bank) indicator Indicates the memory bank (and name if it has one) being received. MEMORY BANK / buttons Change the memory bank being received. TS (Tuning Step) indicator Indicates the selected tuning step when selecting a frequency with the [TUNING] button and when scanning. TS (Tuning Step) / buttons Change the selected tuning step. TUNING / buttons Select a frequency. MCL (Memory clear) button Deletes the contents of unneeded memory channels. MW (Memory write) button Writes the frequency being received into a memory channel. S (Signal) indicator Indicates the receive signal strength. Also indicates the S-meter squelch receive level set with the [SQL / ] buttons. VSC (Voice Scan Control) indicator Appears when the VSC function is on. MODE (Receive mode) indicators
Change the receive mode and indicate the current receive mode. Also, clicking the [AUT-M] indicator turns the automatic mode function on and off. T (Tone squelch) indicator Shows/hides the [TONE SQUELCH] dialog box for setting tone squelch tone frequencies. FILTER (IF filter) indicator Changes the IF filter and indicates the currently selected IF filter.
- Usable IF filter varies according to receive mode.
AFC (Automatic Frequency Control) indicator Turns the AFC function on and off and shows the center indicator. NB (Noise blanker) indicator Turns the noise blanker function on and off and indicates the on or off condition. ATT (Attenuator) indicator Turns the attenuator function on and off and indicates the on or off condition. AGC (Automatic Gain Control) indicator Turns the AGC function on and off and indicates the on or off condition. AF (Audio Frequency) UP/DOWN buttons Adjust the audio output. SQL (Squelch) / buttons Adjust the squelch level. F-INP (Frequency input) button Toggles frequency input capability from the keyboard on and off. Clicking the frequency indication has the same

function.

Communications receiver screen
For a description of labels and functions or when you want to learn more in general about this screen, see paragraphs on following pages.

Frequency span indication Indicates the frequency span selected with the [SPAN+/] button. +200k/ 200k (Max. frequency span value) indicators Indicate the upper and lower observable frequency limits around a receive frequency. In the diagram, the upper and lower limits are +200 kHz and 200 kHz. LIMIT indicator Indicates when the tuning step is greater than the automatic sweep step setting. In the diagram, the tuning step is greater than the automatic sweep step setting and the tuning step (TS) and the sweep step width are not the same. step (Sweep step) indicator Indicates band scope sweep step. Center frequency indicator Indicates the center frequency of the frequency span; this is for the currently received frequency.
Please Note: This Word 6 document is created, without addition by me, from the Help file which is in Icoms PCR1000 program and is not intended to violate any copyright.