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Icom IC-R8600 Instruction Manual - Page 34

Noise Blanker (NB), Noise Reduction, Duplex operation, OTHER FUNCTIONS, LEVEL, DEPTH, WIDTH

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5 OTHER FUNCTIONS Noise Blanker (NB) SSB, CW, FSK and AM modes The Noise blanker eliminates pulse-type noise such as the noise from car ignitions. 1. On the FUNCTION screen, touch [NB]. LEach touch turns the Noise Blanker function ON or OFF. 2. To change the NB level, depth or width, touch [NB] for 1 second. ••Turns ON the Noise Blanker and opens the NB menu. 3. Touch the adjusting item. (Example: DEPTH) 4. Rotate to adjust the level. Noise Reduction The Noise Reduction function digitally reduces random noise components, and enhances desired signals that are buried in noise. LThe function is effective in the SSB, AM and CW modes. 1. On the FUNCTION screen, touch [NR]. LEach touch turns the Noise Reduction function ON or OFF. 2. To change the Noise Reduction level, touch [NR] for 1 second. ••Turns ON the Noise Reduction and opens the NR menu. 3. Set the Noise Reduction level to between 0 and 15. ••Adjust the Noise Reduction level to where noise is reduced and the received signal is not distorted. LSet to a higher level to increase the reduction level, and a lower level to decrease it. NOTE: When using the Noise Blanker, received signals may be distorted if they are excessively strong or the noise is other than a pulse type. In that case, turn the OFF Noise Blanker, or shallow the DEPTH on the NB menu. See the description below for details. Noise Blanker OFF Pulse-type noise Noise Blanker ON LEVEL Pulse-type noise eliminated Receive signal Receive signal NB WIDTH Noise Blanker ON (Not enough DEPTH) Pulse-type noise remains Receive signal Noise Blanker ON (WIDTH set too wide) Part of the receive signal is eliminated along with pulse-type noise Receive signal Duplex operation You can receive a communication that uses different frequencies for transmitting and receiving (Duplex), by setting the offset frequency and shift direction. 1. On the FUNCTION screen, touch [DUP]. ••Each touch changes between [DUP-], [DUP+] and [OFF]. 2. To change the frequency offset or shift direction, touch [DUP] for 1 second. 3. Touch the numeric keys or rotate , to set the frequency offset. ••Settable range: 0.000 ~ 200.000 MHz (1 kHz step) Receive frequency Offset frequency (When the Monitor function is ON.) LEVEL (Default: 50%) Set the Noise Blanker activation level to between 0 and 100%. Touch to change the Shift direction DEPTH (Default: 8) 4. Hold down to turn ON the Monitor function. Adjust the noise attenuation level between 1 and 10. ••T he receive frequency shifts according to the set frequency offset and direction, while holding down . WIDTH (Default: 50) ••[DUP-] or [DUP+] blinks when the shifted frequency is out of receive frequency range. Adjust the blanking duration time between 1 and 100. ••The frequency offset and direction is stored in each memory channel. ••When the frequency offset is set to 0.000 MHz, the 5-4 receive frequency is not shifted.

Section	Page
PREFACE	2
IMPORTANT	2
TRADEMARKS	2
EXPLICIT DEFINITIONS	2
FEATURES	3
ABOUT THE SDR WIDEBAND RECEIVER CIRCUITS	3
VOICE CODING TECHNOLOGY	3
SUPPLIED ACCESSORIES	3
FCC INFORMATION	4
ABOUT THE INSTRUCTIONS	5
About the touch operation	5
Touch screen precautions	5
Touch screen maintenance	5
TABLE OF CONTENTS	6
PRECAUTIONS	9
1. PANEL DESCRIPTION	10
Front panel	10
Rear panel	12
Touch panel display	13
MULTI DIAL MENU ([DIAL A])	15
MULTI DIAL MENU ([DIAL B])	15
MULTI DIAL MENU ([DIAL C])	15
MENU screen	15
QUICK MENU	15
FUNCTION screen	16
FUNCTION items	16
Keyboard entering and editing	16
Entering and editing characters	16
Keyboard types	17
Entry example	17
2. INSTALLATION AND CONNECTIONS	18
Selecting a location	18
Heat dissipation	18
For desktop use	18
Grounding	18
Connecting a DC power supply	18
Power supply	18
Turning the receiver's power ON or OFF	18
Connecting an antenna	19
FSK (RTTY) connections	19
External device connection	20
3. BASIC OPERATION	21
Adjusting the volume level	21
RF gain/SQL level/Audio tone	21
Noise squelch	21
S-meter squelch	21
RF gain	21
Monitor function	21
About the VFO and Memory modes	21
Selecting the receiving mode	21
Setting the frequency	22
Directly entering a frequency	22
Changing the Tuning Step	22
About the Tuning Step (TS) function	22
About the Programmable Tuning Step function	23
About the Auto Tuning Step function	23
Selecting the antenna	23
Dial/Panel Lock function	23
Dial Lock function	23
Panel Lock function	23
Adjusting Backlight dimmer	24
Fine tuning	24
When receiving FM, WFM or DIGITAL signal	24
When receiving FSK signal	24
Selecting meter display	24
Meter display types	24
4. SCOPE OPERATION	25
Spectrum scope screen	25
RX Marker	25
Using the Spectrum Scope	25
Setting the span	26
Setting the range	26
Searching for the peak signal	27
Touch screen operation	27
Mini scope screen	27
Adjusting the Reference level	28
Sweep speed	28
Scope set screen	29
5. OTHER FUNCTIONS	31
About the Function screen	31
Preamplifier	31
Attenuator	31
Selecting the antenna	31
AGC function control	31
IP Plus function	32
Notch Filter	32
Setting the notching width and frequency	32
Using the Digital Twin PBT	32
Selecting the digital IF filter	33
Adjusting the passband width	33
Selecting the filter shape	33
Noise Blanker (NB)	34
Noise Reduction	34
Duplex operation	34
AFC function	35
Receiving in the CW mode	35
Setting the CW pitch control	35
About the CW Reverse mode	35
Receiving FSK (RTTY) signal	35
Decoded FSK data display	35
Decoding FSK signal	35
Turning ON the FSK log	36
Viewing the FSK log contents	37
Twin Peak Filter	37
FSK tone and shift setting	37
About the FSK DECODE SET screen	38
Tone squelch function	39
D.SQL (Digital Squelch) function	39
Digital Code Squelch	39
Network Access Code (NAC)	39
Group Code (COM ID) and CC	40
Radio Access Number (RAN)	40
User Code (UC)	40
Descrambler function	40
Decryption function	40
Receive history log	41
Screen Capture function	41
Capturing a screen	41
Viewing the captured screen	41
6. RECORDING AND PLAYING BACK	42
Recording	42
Quick recording	42
Normal recording	42
Playing back	42
Operation while playing back	43
Playing back on a PC	43
Checking the file information	44
Deleting a file	44
Deleting a folder	45
PLAYER SET screen	45
RECORDER SET screen	45
7. USING AN SD CARD	46
About the SD card	46
SD card’s folder contents	46
Saving data onto the SD card	46
Inserting or removing the SD card	46
Inserting	46
Removing (While the receiver is OFF)	46
Removing (While the receiver is ON)	46
Formatting an SD card	47
Saving in the old format	47
Saving the setting data	47
Loading the data files	48
Deleting a data file	48
Checking SD card information	48
8. MEMORY OPERATION	49
Memory channels	49
Selecting channel group	49
Selecting with [▲GRP]/ [▼GRP]	49
Selecting on the GROUP SELECT screen	49
Selecting a memory channel	50
Selecting with [DIAL C]	50
Selecting with [MAIN DIAL]	50
Selecting using the keypad	50
Writing a memory channel	50
Copying the Memory contents	51
Inserting a blank channel	51
Clearing a memory channel	51
Entering a group/memory name	52
Entering a group name	52
Entering a memory name	52
About the MEMORY screen	53
9. SCANS	54
Scan types	54
Basic scanning	54
VFO scan and Memory scan	54
Priority scan	54
Adjusting the scan speed	54
Setting the Scan Resume function	55
Setting the scan pause timer	55
Setting the resume delay timer	55
Setting the Scan Resume condition	55
Setting the priority interval	55
Priority scan	55
Priority scan operation	55
Monitoring the Priority channel	55
Scan Setting screen	56
Programmed scan and Fine Programmed scan	57
Programmed scan operation	57
Fine Programmed scan operation	57
∂F scan	58
∂F scan operation	58
Fine ∂F scan operation	58
Auto Memory Write scan	59
Auto Memory Write scan operation	59
Memory scan and Select Memory scan	60
Memory scan operation	60
Select Memory scan operation	60
Setting Select Memory channels	61
Canceling the Select Memory channel settings	61
Mode select memory scan	62
Setting the receive mode	62
Setting the skip frequency	62
Setting the skip frequency	62
Canceling the skip frequency	62
Setting the Temporary Skip	63
Skip channel for memory scan	63
Voice Squelch Control function	64
Tone scan operation	64
10. CLOCK AND TIMER	65
Setting the Time and Date	65
Setting date	65
Setting time	65
NTP Time Server	65
Execute the time synchronization	65
Setting the NTP Server address	65
Timer	66
Setting the Sleep timer	66
Setting the Daily timer	66
Timer setting items	67
About the Timer recording	67
11. SET MODE	68
Set mode description	68
Entering the Set mode	68
Tone Control	69
Function	69
Digital Set	71
Connectors	72
Network	74
Display	76
Time Set	77
SD Card	77
Others	77
12. MAINTENANCE	78
Cleaning	78
Replacing fuse	78
DC power cable fuses	78
Circuitry fuse	78
Resetting	79
Partial reset	79
All reset	79
Touch screen calibration	80
Troubleshooting	81
13. UPDATING THE FIRMWARE	83
General	83
About updating the firmware	83
Checking the firmware version	83
Preparation	83
Downloading the firmware file	83
Unzipping the firmware folder	83
Updating the firmware	84
14. SPECIFICATIONS	85
General	85
Receiver	85
15. OPTIONS	87
Options	87
Attaching the MB-123	87
16. CONNECTOR INFORMATION	88
ABOUT THE LICENSES	90

Match case Limit results 1 per page

OTHER FUNCTIONS

5-4

Noise Blanker (NB)

SSB, CW, FSK and AM modes

The Noise blanker eliminates pulse-type noise such

as the noise from car ignitions.

On the FUNCTION screen, touch [NB].

Each touch turns the Noise Blanker function ON or OFF.

To change the NB level, depth or width, touch

[NB] for 1 second.

•

Turns ON the Noise Blanker and opens the NB menu.

Touch the adjusting item. (Example: DEPTH)

4. Rotate

to adjust the level.

NOTE

: When using the Noise Blanker, received signals

may be distorted if they are excessively strong or the noise

is other than a pulse type. In that case, turn the OFF Noise

Blanker, or shallow the DEPTH on the NB menu.

See the description below for details.

LEVEL

(Default: 50%)

Set the Noise Blanker activation level to between 0

and 100%.

DEPTH

(Default: 8)

Adjust the noise attenuation level between 1 and 10.

WIDTH

(Default: 50)

Adjust the blanking duration time between 1 and 100.

Noise Reduction

The Noise Reduction function digitally reduces

random noise components, and enhances desired

signals that are buried in noise.

The function is effective in the SSB, AM and CW modes.

On the FUNCTION screen, touch [NR].

Each touch turns the Noise Reduction function ON or OFF.

To change the Noise Reduction level, touch [NR]

for 1 second.

•

Turns ON the Noise Reduction and opens the NR menu.

Set the Noise Reduction level to between 0 and 15.

•

Adjust the Noise Reduction level to where noise is

reduced and the received signal is not distorted.

Set to a higher level to increase the reduction level,

and a lower level to decrease it.

Noise Blanker OFF

Noise Blanker ON

Pulse-type

noise

Receive

signal

Noise Blanker ON

(Not enough DEPTH)

Noise Blanker ON

(WIDTH set too wide)

NB WIDTH

Receive

signal

LEVEL

Receive

signal

Receive signal

Pulse-type

noise remains

Part of the receive signal

is eliminated along with

pulse-type noise

Pulse-type

noise eliminated

Duplex operation

You can receive a communication that uses different

frequencies for transmitting and receiving (Duplex), by

setting the offset frequency and shift direction.

On the FUNCTION screen, touch [DUP].

•

Each touch changes between [DUP–], [DUP+] and [OFF].

To change the frequency offset or shift direction,

touch [DUP] for 1 second.

Touch the numeric keys or rotate

, to set

the frequency offset.

•

Settable range: 0.000 ~ 200.000 MHz (1 kHz step)

Touch to change the Shift direction

Receive frequency

(When the Monitor function is ON.)

Offset frequency

4. Hold down

to turn ON the Monitor function.

•

The receive frequency shifts according to the set frequency

offset and direction, while holding down

•

[DUP–] or [DUP+] blinks when the shifted frequency is

out of receive frequency range.

•

The frequency offset and direction is stored in each

memory channel.

•

When the frequency offset is set to 0.000 MHz, the

receive frequency is not shifted.