JVC KENWOOD 512000 Users Manual

4 BASIC OPERATIONS

BASIC OPERATIONS 4

Turning ON/OFF the Power

Check

to ensure that the connections are correct before turning on

the power of the regulated DC power supply.

Press [

When the power turns on, the [ ] LED lights up in green. The message screen (“KENWOOD”, “HELLO”) is displayed, followed by the frequency display.

Press and hold [ ].

The power is turned off.

●

The message screen “HELLO” can be changed. (Menu [0-06] “Power-on Message”) When a voltage that exceeds approximately DC 18 V is applied, the overvoltage protection circuit is activated and the power is turned off automatically. When the temperature of this transceiver or the surroundings the screen reaches the normal level of brightness.

To prevent damage of the internal data, do not turn off the regulated DC power supply while leaving the power of the TS-890S on.

is extremely low, it may take a while before

Screen Display Settings

The background color of the screen, function key guide display and font type for the frequency display can be changed.

Changing the Background Color

A background color for the screen can be chosen from the three choices available.

Configure in Menu [0-00] “Color Display Pattern”

Setting

Value

Type 1: Black Type 2: Blue Type 3: Dark green

Changing the Type of Function Key Display

A function key display can be chosen from the three choices available.

Configure in Menu [0-01] “Function Key Style”

Setting

Value

Type 1: Standard Type 2: Gradation Type 3: Illuminated

Changing the Frequency Display Font Type

A font type for the frequency display can be chosen from the five choices available.

Configure in Menu [0-02] “Font Style (Frequency Display)”

Setting

Value

Type 1 (default)/ Type 2/ Type 3

Font 1 (default)/ Font 2/ Font 3/ Font 4/ Font 5

Current Flow when Power is OFF

When the power of the external power supply is ON, a small amount of electric current is flowing even when the power of this transceiver power is OFF varies depending on whether this transceiver is connected to a PC or connected for KNS operation.

Connection

via USB

Refer to (1-4) for details on PC connection and (15-2) for

•

details on KNS operation.

is OFF. The amount of current that flows through when

Off

No Approx. 4 mA Approx. 20 mA Approx. 150 mA

Yes Approx. 95 mA Approx. 110 mA Approx. 210 mA

KNS Operation Setting

On (LAN)

LAN MODE

On (Internet)

WAN MODE

Font 1: Type 1 fonts Font 2: Type 2 fonts Font 3: Type 1 italic fonts Font 4: Type 2 italic fonts Font 5: 7-segment fonts

4-1

4 BASIC OPERATIONS

Dimmer

Below are steps to adjust the brightness of the screen and LED.

Switching the Brightness Level

The preset brightness of the screen and LED can be adjusted according to the surrounding conditions.

1 Press [MENU]. 2 Press F [DIMMER].

Pressing F [DIMMER] each time switches the dimmer setting in the following sequence: “DIMMER 1” → “DIMMER 2” → “DIMMER 3” → “DIMMER 4”.

Adjusting the Dimmer Level

The preset values for “Dimmer 1”, “Dimmer 2”, “Dimmer 3” and “Dimmer 4” can be configured to a different value for Display (screen) and LED respectively.

1 Press and hold F [DIMMER].

The Dimmer configuration screen appears.

2 Press F2 [DIMMER] to select a dimmer preset. 3

Press F3 [ ]/ F4 [ ] to select “Display” or “LED”.

4 Press

The setting values and default values are shown below.

Dimmer Display Setting Value Default

F5 [–]/ F6 [+] or turn [MULTI/CH] to change the

setting value.

Display 5 to 100 (5-step) 100 LED 5 to 100 (5-step) 100 Display 5 to 100 (5-step) 75 LED 5 to 100 (5-step) 75 Display 5 to 100 (5-step) 50 LED 5 to 100 (5-step) 50 Display 0 to 100 (5-step) 25 LED 5 to 100 (5-step) 25

●

Configuring the screen brightness to “0” and exiting the menu turns all the lights off. Pressing [MENU] at this time displays the screen with the dimmest level of brightness.

Adjusting AF Gain

Below are the steps to adjust the volume so that sound can be heard from the speaker.

Turn the [AF] control.

Turning to the left lowers it.

•

the control to the right raises the volume, while turning

If no sound is heard or if only a light noise-like sound is heard even when the [AF] control is turned all the way to the right, the squelch may be closed. Adjust the squelch level in this case.

●

The volume of the beep sound, sidetone and announcement cannot be adjusted using the [AF] control.

Adjusting RF Gain

Below are the steps to adjust the gain of the RF amplifier. Under normal circumstances, turn the [RF] control all the way to the right. To enhance clarity when there is external noise or interference by other stations, turn the control slightly to the left to lower the gain level.

Turn the [RF] control.

by checking the peak scale of the S meter, followed by

Start

•

turning the [RF] control in the anti-clockwise direction without lowering the peak value of the S meter. Doing so attenuates signals weaker than this level and eases reception from the desired station. Depending on the type of antenna, gain level and band

•

condition, better effect may sometimes be achieved by turning the [RF] control slightly to the left rather than all the way to the right.

●

the FM mode, turning the [RF] control does not change

the gain level. Under normal circumstances, turn the

[RF] control all the way to the right.

Adjusting the Squelch Level

Below

are steps to adjust the threshold level for squelch, a function for eliminating noise that is heard when receiving a frequency with no signal.

Turn the [SQL] control.

Configure the squelch level to the position where noise disappears. When squelch opens upon receiving a signal, the [BUSY/TX] LED lights up in green.

●

The position of the [SQL] control at which noise disappears and surrounding conditions such as temperature.

●

The position of the control knob at which noise disappears also varies depending on whether this transceiver is in the FM mode or in other modes.

varies according to the strength of the noise

Selecting VFO A/ B

4-2

This transceiver is equipped with two VFOs, A and B. The two VFOs operate independently of each other, and thus can be configured to different frequencies and modes. Additionally, one VFO can be configured to the TX frequency and the other to the RX frequency.

Press [A/B].

Pressing [A/B] B”. The currently selected VFO is indicated as << << >>.

Pressing and holding down [A/B]

•

and “VFO B” to the same frequency and mode.

each time switches between “VFO A” and “VFO

>> or

configures both “VFO A”

BASIC OPERATIONS 4

Selecting an Operating Band

Below are steps to select the frequency bandwidth to use. A different frequency bandwidth can be selected for VFO A and VFO B. By using the numeric keypad or [GENE] key, it is possible to call up an amateur frequency between 1.8 MHz and 50/70 (E type) MHz or a general band frequency at one touch.

This transceiver comes with a band memory feature that is able

•

to store up to 5 pairs of frequencies and modes (3 pairs in the default setting) that were used most recently for each band.

Press [1 (1.8)] to [0 (50)] or [GENE].

Pressing one of the above keys saves the current VFO

•

frequency and mode and calls up the next memory band at the same time. Pressing the key each time switches to the next

band memory in sequence from band memory 1 to band memory 5. Frequencies that are out of the range of the band memory

•

will not be stored. The default values for each of the band memories are as

•

follows.

K Type

Band/

Frequency

(MHz)/

Mode

1.8 MHz/

1.62 to 2

3.5 MHz/ 3 to 4

7 MHz/

6.5 to 7.5 10 MHz/

10 to 10.5 14 MHz/

13.5 to

14.5 18 MHz/

18 to 19 21 MHz/

20.5 to

21.5 24 MHz/

24 to 25 28 MHz/

27.5 to 30 50 MHz/

50 to 54 General/

0.030 to 60

Band

Memory

1.8/ CW

3.5/ LSB

7.0/ LSB

10.1/ CW

14.0/ USB

18.068/ USB

21.0/ USB

24.89/ USB

28/ USB

50/ USB

0.1357/CW0.472/CW1/

Default Setting (MHz)/Mode Band

Memory

1.81/ CW

3.6/ LSB

7.05/ LSB

10.11/CW10.12/CW10.13/CW10.14/

14.1/ USB

18.1/ USB

21.1/ USB

24.92/ USB

28.3/ USB

50.125/ USB

Band

Memory

1.82/ CW

3.7/ LSB

7.1/ LSB

14.15/ USB

18.11/ USB

21.15/ USB

24.94/ USB

28.5/ USB

50.2/ USB

Band

Memory

1.83/ CW

3.8/ LSB

7.15/ LSB

14.20/ USB

18.15/ USB

21.2/ USB

24.96/ USB

29/ FM

51/ FM

5.3305/ USB

Band

Memory

1.84/ CW

3.9/ LSB

7.2/ LSB

14.25/ USB

18.16/ USB

21.3/ USB

24.98/ USB

29.3/ FM

52/ FM

5.4035/ USB

E Type

Band/

Frequency

(MHz)

1.8 MHz/

1.62 to 2

3.5 MHz/ 3 to 4

7 MHz/

6.5 to 7.5 10 MHz/

10 to 10.5 14 MHz/

13.5 to

14.5 18 MHz/

18 to 19 21 MHz/

20.5 to

21.5 24 MHz/ 24

to 25 28 MHz/

27.5 to 30 50 MHz/

50 to 54 General/

0.030 to

74.8

●

Band

Memory

1.83/ CW

3.5/ LSB

7.0/ LSB

10.1/ CW

14.0/ USB

18.068/ USB

21.0/ USB 21.1/ USB

24.89/ USB

28/ USB

50/ USB

70.1/ USB

When the number of band memories is reduced, the change will be applied when the band memory is switched.

Default Setting (MHz)/Mode Band

Memory

1.84/ CW

3.55/ LSB

7.05/ LSB

10.11/CW10.12/CW10.13/CW10.14/

14.1/ USB

18.1/ USB

24.92/ USB

28.3/ USB

50.15/ USB

0.1357/CW0.472/CW0.999/AM5.2585/

Band

Memory

1.85/ CW

3.6/ LSB

7.1/ LSB

14.15/ USB

18.11/ USB

21.15/ USB

24.94/ USB

28.5/ USB

50.2/ USB

Band

Memory

1.81/ CW

3.65/ LSB

7.15/ LSB

14.20/ USB

18.15/ USB

21.2/ USB 21.3/ USB

24.96/ USB

29/ FM

51/ FM

Changing the Number of Band Memories

The number of band memories can be changed.

Configure in Menu [3-11] “Number of Band Memories”

Setting

Value

1/ 3 (default)/ 5

Band

Memory

1.82/ CW

3.7/ LSB

7.2/ LSB

14.25/ USB

18.16/ USB

24.98/ USB

29.3/ FM

52/ FM

USB

4-3

LSB

USB

CW-R

FSK

FSK-R

PSK

PSK-R

FMN

4 BASIC OPERATIONS

Selecting an Operating Mode

Below

are steps to select an operating mode. It is also possible to configure the operating mode to DATA mode for data communication.

SSB (LSB-USB) Mode

Press [LSB/USB].

Pressing [LSB/USB] each time switches between “LSB” and “USB”.

CW/ CW-R Mode

Press [CW/ CW-R].

Pressing [CW/ CW-R] each time switches between “CW” and “CW-R”.

FSK/ FSK-R/ PSK/ PSK-R Mode

Press [FSK/PSK].

Pressing [FSK/PSK] each time switches between “FSK” and “PSK”.

Pressing and holding down [FSK/PSK] each time in the

•

respective

modes switches the mode to FSK-R and PSK-R.

DATA Mode

This

is a mode for data communication by connecting an external

device.

1 Press the mode key to configure to FM, AM or SSB

(LSB/USB) mode.

2 Press [DATA].

Pressing [DATA] each time switches between “DATA OFF” and “DATA ON”.

During LSB Mode LSB LSB-D

During USB Mode USB USB-D

During FM Mode FM FM-D

During FMN Mode FMN FMN-D

During AM Mode AM AM-D

●

OFF the speech processor before performing data

Turn

DATA OFF DATA ON

communication.

●

Settings such as the method of standby and muting audio input path that is not used during transmission can be configured for each of the DATA OFF and DATA ON statuses.

Auto Mode

By configuring the auto mode frequency point and the corresponding operating mode in advance, the operating mode will switch automatically when the frequency exceeds the auto mode frequency point after it has been changed.

Auto mode is a convenient function that allows automatic

•

switching of the operating mode according to the band plan. Up

to 32 points can be configured for the auto mode frequency.

•

FM/ AM Mode

Press [FM/AM].

Pressing [FM/AM]

While in the FM mode, pressing and holding down [FM/AM]

•

each time switches between “FM” and “FMN” (FM Narrow).

●

The mode and DATA mode settings are stored in the band memory.

●

narrow and normal settings are stored in each of the

following bandwidths: HF, 50 MHz and 70 MHz.

each time switches between “FM” and “AM”.

Turning ON/OFF Auto Mode

1 Press [MENU]. 2 Press F [AUTO MODE] to display the Auto Mode

screen.

3 Pressing

F1 [A.MODE] each time switches the Auto

Mode to ON or OFF.

When the Auto Mode is turned ON, << This display disappears when Auto Mode is turned OFF.

>> is displayed.

Configuring Auto Mode Frequency Points

1 Display the Auto Mode screen. 2 Turn

3 Press

the Tuning control to select a frequency point.

Align the frequency of the selected band with the frequency to register.

the Mode key or press and hold down the key to switch to the mode to which the band is to be registered.

4-4

BASIC OPERATIONS 4

4 Press F4 [COPY] to copy the frequency and mode.

The frequency and mode of the selected band is imported

•

into the list as a new classification. To delete a registered classification, press F2 [ ]/ F3

•

[ ] or turn the [MULTI/CH] control to select the row to

followed by pressing F5 [DELETE] to delete the row.

delete, Doing so shifts up the classifications after the deleted row in the list.

5 Repeat the steps from 2 to 5 to configure the

frequency and mode for all the points.

6 Press F6 [OK].

When the Auto Mode is turned ON, the mode that is assigned

•

the respective channels will be automatically selected. In the

to SSB mode, LSB mode will be selected for frequencies below

10.1 MHz, and USB mode will be selected for frequencies that are 10.1 MHz or higher. The table below shows an example when auto mode frequency

•

is configured to the HF/50/70 MHz band.

Frequency Mode Preset Frequency Range

1.620 MHz AM 30 kHz≦f<1.62 MHz

2.000 MHz CW 1.62 MHz≦f<2.0 MHz

3.500 MHz LSB 2.0 MHz≦f<3.5 MHz

3.525 MHz CW 3.5 MHz≦f<3.535 MHz

10.100 MHz LSB 3.535 MHz≦f<10.1 MHz

10.150 MHz CW 10.1 MHz≦f<10.15 MHz

14.000 MHz USB 10.15 MHz≦f<14.0 MHz

14.070 MHz CW-R 14.0 MHz≦f<14.07 MHz

14.112 MHz FSK 14.07 MHz≦f<14.112 MHz

18.068 MHz USB 14.112 MHz≦f<18.068 MHz

18.110 MHz CW 18.068 MHz≦f<18.11 MHz

21.000 MHz USB 18.11 MHz≦f<21.0 MHz

21.070 MHz CW 21.0 MHz≦f<21.07 MHz

21.125 MHz FSK-R 21.07 MHz≦f<21.125 MHz

21.150 MHz CW 21.125 MHz≦f<21.15 MHz

24.890 MHz USB 21.15 MHz≦f<24.89 MHz

24.930 MHz CW 24.89 MHz≦f<24.93 MHz

28.000 MHz USB 24.93 MHz≦f<28.0 MHz

28.070 MHz CW 28.0 MHz≦f<28.07 MHz

28.150 MHz FSK 28.07 MHz≦f<28.15 MHz

28.200 MHz CW 28.15 MHz≦f<28.2 MHz

29.000 MHz USB 28.2 MHz≦f<29.0 MHz

30.000 MHz

50.000 MHz USB 30.0 MHz≦f<50.0 MHz

50.100 MHz CW 50.0 MHz≦f<50.1 MHz

51.000 MHz USB 50.1 MHz≦f<51.0 MHz

52.000 MHz FM 51.0 MHz≦f<52.0 MHz

– USB

FM-DATA

29.0 MHz≦f<30.0 MHz

52.0 MHz≦f<60.0 MHz (K type)

52.0 MHz≦f<74.8 MHz (E type)

Adjustment of Frequencies

The steps to adjust the TX and RX frequencies are described below.

Adjustment Using the Tuning Control

Turn the Tuning control to increase or decrease the frequency.

Adjustment Using the Microphone Key

Press the [UP] or [DWN] key on the microphone to increase or decrease the frequency.

FINE Tuning

The

step frequency of the Tuning control can be configured to one-

tenth of the step size. Doing so allows fine-tuning of the frequency.

Press [FINE].

Pressing [FINE] each time toggles FINE tuning between ON and OFF.

●

When fine tuning is set to OFF, the 1 Hz digit frequency display both the 10 Hz and 1 Hz digits are grayed out. Setting fine tuning to ON turns off the gray-out display and shows the frequency in full up to the 1 Hz digit.

●

Depending on the operating frequency, the 1 Hz digit display may not gray out on the operating frequency display of the transverter even when fine tuning is set to OFF.

Configuring the Number of Steps per Revolution of the Tuning Control

The number of steps per revolution of the Tuning control can be changed.

Configure in Menu [3-07] “Tuning Control: Number of Steps per Revolution”

Setting

Value

Configuring the Fast Forward Rate of the Tuning Control

This function enables the speed of frequency change to increase by 2 to 10 times with respect to the speed of turning when the Tuning control is turned at a fast speed.

Configure in Menu [3-08] “Tuning Speed Control”

Setting

Value

will be grayed out. When in the FM or AM mode,

250/ 500/ 1000 (default) [Step]

Off (default)/ 2 to 10 (1 step)

Configuring the Sensitivity for Starting the Fast Forward Operation

Configuring this to a larger value increases the sensitivity for starting the fast forward operation.

Configure in Menu [3-09] “Tuning Speed Control Sensitivity”

Setting

Value

1 to 5 (default) to 10 (1 step)

4-5

4 BASIC OPERATIONS

Frequency Adjustment Using the [MULTI/CH] Control

Turning the [MULTI/CH] control enables the frequency to be changed quickly. The frequency increases or decreases in increments based on the configured step size.

Turn the [MULTI/CH] control to increase or decrease the frequency.

The default frequency per step is 1 kHz in the SSB mode,

0.5 kHz 10 kHz in the FM mode.

in the CW/ FSK/ PSK mode, 5 kHz in the AM mode and

Rounding the Frequency

When the frequency is adjusted by turning the [MULTI/CH] control, multiple of the step size. Rounding of the frequency can also be disabled.

the new frequency is automatically rounded to the integer

Configure in Menu [3-00] “Frequency Rounding Off (Multi/Channel Control)”

Setting

Value

Off/ On (default)

Configuring the Frequency Step Size of the [MULTI/CH] Control

The frequency per step when the [MULTI/CH] can be configured or changed to a different value for each mode.

control is turned

SSB Mode

Configure in Menu [3-01] “SSB Mode Frequency Step Size (Multi/Channel Control)”

Setting

Value

0.5/ 1 (default)/ 2.5/ 5/ 10 [kHz]

CW/ FSK/ PSK Mode

Configure in Menu [3-02] “CW/FSK/PSK Mode Frequency Step Size (Multi/Channel Control)”

Setting

Value

0.5 (default)/ 1/ 2.5/ 5/ 10 [kHz]

FM Mode

Configure in Menu [3-03] “FM

Mode Frequency Step

Size (Multi/Channel Control)”

Setting

Value

5/ 6.25/ 10 (default)/ 12.5/ 15/ 20/ 25/ 30/ 50/ 100 [kHz]

Adjusting Frequency in MHz Steps

The frequency can be adjusted in units of MHz.

Press [MHz].

Pressing [MHz] each time toggles the MHz step function between ON and OFF. When the function is turned ON, <<

Turn the [MULTI/CH] control while the function is

>> lights up.

turned ON.

The frequency increases or decreases according to the MHz frequency step configured in Menu [3-06].

Configuring the Frequency Step Size in MHz

Configure in Menu [3-06] “MHz Step”

Setting

Value

100/ 500/ 1000 (default) [kHz]

Direct Input of Frequency Value

If the desired frequency is far apart from the current frequency

the fastest way is to input the frequency value directly using

value, the numeric keypad.

1 Press [ENT].

A screen to input the frequency for the operable band appears with all the frequency digits displayed as “-”.

2 Key

in a frequency value using the numeric keypad.

“-” changes into a numeric value when a numeric key is pressed

•

and a value can be input starting from the highest-order digit. To enter 1.82 MHz, press [0/50], [1/1.8], [8/24] followed by

•

[2/3.5], and press [ENT] when input is complete. To enter a frequency lower than 6 MHz for K type

•

transceivers, start by keying in a “0”. To enter a frequency lower than 8 MHz for E type

•

transceivers, start by keying in a “0”. Pressing [CLR] halfway through the input process clears the

•

input and restores the VFO frequency display before the input.

AM Mode

Configure in Menu [3-04] “AM

Mode Frequency Step

Size (Multi/Channel Control)”

Setting

Value

5 (default)/ 6.25/ 10/ 12.5/ 15/ 20/ 25/ 30/ 50/ 100 [kHz]

Switching the AM Broadcast Frequency in 9 kHz Steps

In the BC band (medium frequency band) from 522 kHz to 1710 kHz and LF band (long frequency band) from 153 kHz to 279 kHz, the RX frequency can be adjusted in steps of 9 kHz by turning the [MULTI/CH] control.

Configure in Menu [3-05] “9 kHz Step in AM Broadcast Band (Multi/Channel Control)”

Setting

Value

Off (K type: default)/ On (E type: default)

4-6

During fine tuning, a frequency up to 59.99999 MHz can be input

•

(input of 60 MHz is not allowed). Pressing [ENT] halfway through the input process fills the

•

remaining digits with “0” and completes the input. When a frequency value out of the TX and RX range is input, an

•

alarm tone is output and the input value is automatically cleared. If the first input value is between 0 and 5, input starts from the

•

10 MHz digit. If the first input value is between 6 and 9, input starts from the 1 MHz digit. “0” that is entered up to the 10 Hz digit will not appear as “0” in the display.

•

Inputting a frequency value automatically switches RIT and XIT

•

to OFF but does not clear the offset frequency. When fine tuning is OFF, the smallest digit for input is the 10 Hz digit

•

in modes other than AM and FM, and 100 Hz in the AM and FM mode. When in the auto mode, the mode switches automatically after

•

input of frequency is complete.

BASIC OPERATIONS 4

Frequency Input History

The latest 10 frequency values that were input using the numeric keypad are stored in the transceiver. To use the same frequency value, it is possible to retrieve it from the history.

1 Press [ENT] to enable input of a frequency value.

“-” is displayed for all digits of the frequency value.

2 Turn the [MULTI/CH] control to display the history.

Frequency values that were previously entered and the

•

number (E0 to E9) are displayed. The first frequency

record value shown is the most recent input. Turning the control to the right jumps to the subsequent record numbers in ascending order. The larger the record number, the older the record.

3 Press [ENT] to configure the selected frequency to

VFO.

●

When 10 frequency values have been registered, the oldest input in the history will be deleted when another frequency value is registered.

Frequency Lock

The

frequency lock function disables operation of specific keys or control knobs to prevent the frequency from being altered accidentally due to erroneous operation of the key or control knobs.

Press [LOCK] to lock the frequency value.

The [LOCK] LED lights up in orange. The following operations are disabled when frequency lock is turned on.

Frequency tuning

•

Change of memory channel

•

Change of quick memory channel

•

Direct input of frequency value

•

Registration of memory channel

•

Starting program scan or VFO scan

•

Starting memory scan or quick memory scan

•

Switching between the VFO and memory channel modes

•

Frequency band selection

•

Memory shift

•

Configuring the frequencies for VFO A and VFO B to the

•

same value Switching between VFO A and VFO B

•

Mode selection

•

Switching to FINE tuning

•

CW auto tune

•

Quick memory channel mode switch

•

Registration of quick memory channel

•

Touchscreen tuning

•

●

When “Tuning Control Lock” is selected in Menu [3-10], only the Tuning control will be locked.

Transmission

Audio Transmission

1 Press

2 Speak into the microphone in the normal tone and

3 Release the [PTT] key on the microphone or press the

CW Transmission

Performing enables transmission in the CW mode.

1 Press [CW/ CW-R] to select CW mode. 2 Press [VOX] to enable break-in. 3 Operate the keyer or paddle.

Adjusting Microphone Gain

Microphone gain can be adjusted in the SSB or AM mode as follows while referring to the ALC meter display.

1 Press

2 Speak into the microphone in the normal tone and

3 Turn the [MIC/PITCH] control to adjust the microphone

4 Release the [PTT] key on the microphone or press the

and hold the [PTT] key on the microphone or

press the [SEND] key.

The transmitting status is activated and the [BUSY/TX] LED lights up in red.

loudness.

[SEND] key.

Doing so restores the receiving status.

the following steps when a key or paddle is connected

and hold the [PTT] key on the microphone or

press the [SEND] key.

transmitting status is activated and the [BUSY/TX] LED

The

•

lights up in red.

loudness.

gain level.

Microphone gain is displayed as “MIC:nnn” at the top of the screen. [nnn: 0 to 100]

When in the SSB mode

Turn the [MIC/PITCH] microphone. The ALC meter fluctuates according to the volume level. Ensure that the maximum level does not exceed the ALC zone during the adjustment.

When in the AM mode

Turn the [MIC/PITCH] control while speaking into the microphone. Adjust in such a way that the PWR meter fluctuates slightly according to the volume level.

control while speaking into the

[SEND] key.

Depending on the squelch level setting, the [BUSY/TX] LED may light up in green or go off.

Lock Target

This function allows the selection of a control knob to be locked.

Configure in Menu [3-10] “Lock Function”

Setting

Value

Frequency Lock:

controls. Tuning Control Lock: Locks only the Tuning control.

Frequency Lock (default)/ Tuning Control Lock

Locks both Tuning and [MULTI/CH]

4-7

4 BASIC OPERATIONS

●

Speak into the microphone in the normal tone and loudness. Make sure that your mouth is not too close to the microphone and do not speak too loudly. Doing so may increase the extent of distortion, thus causing audibility to deteriorate at the receiving end.

●

To use a speech processor, refer to “Speech

Processor”.

●

Note that the output level tend to be larger when a microphone with a built-in AF amplifier is used.

●

Microphone gain in the FM mode can be configured in Advanced Menu [10] “Microphone Gain (FM Mode)”.

Adjusting TX Output Power

Maintain a TX output power level that is as low as possible while ensuring that communication can be carried out smoothly. Doing so reduces the likelihood of interference with other stations. The

TX output power level can also be adjusted while transmission

is in progress.

Turn the [POWER] control to adjust the TX output power.

Turning the [POWER] control to the right increases the output level, while turning it to the left reduces the output level. The selectable range varies with the band and mode in use as follows.

HF Band 5 to 100 [W] 5 to 25 [W] 50 MHz Band 5 to 100 [W] 5 to 25 [W] 70 MHz Band (E type) 5 to 50 [W] 5 to 12.5 [W]

Other than AM AM

TX Output Power Limiter

The TX output power limiter can be used to limit the TX output power.

This is a function to prevent the TX output power level from exceeding the preconfigured level for each band when the [POWER] control is turned. It can also be used to limit TX output power only in the DATA mode with a specific band.

Turning ON/OFF TX Output Power Limiter

Press F [MAX-Po].

Pressing F [MAX-Po] each time toggles the TX output power limiter function between ON and OFF.

When the TX output power limiter is turned ON, pressing F

•

[MAX-Po] TX output power limiter.

Configuring the TX Output Power Limiter

1 Press

power limiter screen.

displays the confirmation screen for turning off the

and hold F [MAX-Po] to display the TX output

●

Output is displayed in a step size of 1 W. An output of

12.5 W will be shown as “12 W”.

Fine Adjustment of TX Output Power

It is possible to alter the step size when the [POWER] control is turned.

Configure in Menu [6-04] “Transmit Power Step Size”

Setting

Value

1[W]: Adjusts the TX output level in a step size of 1 W. 5[W]: Adjusts

10, 15...).

1 [W]/ 5 (default) [W]

the TX output level in a step size of 5 W (e.g., 5,

Press F4 [ ]/ F5 [ ] to select a frequency band.

Press F2 [ ]/ F3 [ ] to select the TX output power to limit.

Select the TX output power item to limit as follows. Max Power Limit: during transmission.

The TX output power limit can be configured separately for

•

the SSB, CW, FSK/PSK, FM/AM and DATA modes. TX Tune Power: For configuring the TX output power limit during TX tuning.

4 Press

F6 [–] / F7 [+] or turn the [MULTI/CH] control

For configuring the TX output power limit

to select a limit value for TX output power.

To restore the default setting, press and hold F1

•

[(RESET)].

●

A different TX output power limit cannot be configured for the antenna connectors (antenna 1/2).

●

Advanced Menu [06] “TX Power Down with Transverter Enabled” is configured to “On”, the F [MAX-Po] and watt display at the right edge of the screen will disappear when the transverter or drive output is turned ON.

4-8

Analog MeterDigital Meter

BASIC OPERATIONS 4

Meter

The meter displays the measured reading of the S meter during reception and that of the selected meter during transmission.

Changing the Meter Type

A digital meter and two types of analog meters are available for selection.

Changing the Meter Type from the Menu

Configure in Menu [0-09] “Meter Display Pattern”

Setting

Value

Changing the Meter Type via Touchscreen Operation

Touch the meter display area while an analog or digital meter is displayed

Touching the screen each time switches the meter in the following sequence: “Digital” → “Analog (White)” → “Analog (Black)”.

When in the compressed mode, touching the meter will not

•

change the display.

Digital/ Analog (White) (default)/ Analog (Black)

FM Mode S-meter Sensitivity

The default deflection type in the FM mode is the same as that in the other modes. Selecting “High” switches the transceiver to the same

deflection type (high sensitivity) as our conventional models.

Configure in Menu [0-07] “FM Mode S-Meter Sensitivity”

Setting

Value

●

Normal (default)/ High

This function is available when Menu [0-11] “S-Meter Scale” is configured to “Type 1”.

Analog Meter Response

Configure the response speed of the analog meter indicator.

Configure in Menu [0-08] “Meter Response Speed (Analog)”

Setting

Value

1 to 3 (default) to 4 (1 step)

Meter with Peak Hold

Display the peak hold of the digital meter.

Configure in Menu [0-10] “Meter

Setting

Value

Off/ On (default)

Display Peak Hold”

Switching between TX Meters

Press F [METER].

Press F [METER] according to the meter type.

Analog meter display when the TX meter (digital) is OFF:

“Po” → “SWR” → “Id” → “COMP”* → “ALC” → “Vd” →…

Display at the bottom of the TX meter (digital) when the TX meter (digital) is ON:

“SWR” → “Id” → “COMP”* → “Vd” → “TEMP” →…

The last line of the display in the digital meter display mode:

“SWR” → “Id” → “COMP”* → “Vd” → “TEMP” →…

When a mini digital meter is displayed:

“Po” → “SWR” → “Id” → “COMP”* → “ALC” → “Vd” → “TEMP” →…

SWR

COMP

ALC Indicates the ALC level.

ld Indicates the drain current of the final FET.

Vd Indicates the voltage of the final FET.

TEMP Indicates the temperature of the internal circuit.

each time switches the display as follows

Indicates the TX output power. (Output power at the peak)

Indicates the standing wave ratio which reflects the matching status of the antenna.

Indicates the amount of TX audio amplitude that is compressed by the speech processor.

S Meter Scale

Switch the type of deflection for the S meter.

Configure in Menu [0-11] “S-Meter Scale”

Setting

Value

Type 1: Same scale as our HF products. Type

●

Type 1 (default)/ Type 2

2: Initial deflection is more sensitive compared to Type 1.

Additional notes for “Type 2”

S meter indicator will appear deflected at all times

The

•

when there is external noise. The movement may not be smooth as it is a pseudo

•

representation of the S meter deflection. Narrowing the RF gain may disrupt the continuity from

•

S0 to S4.

●

external meter can also be used to display the signal

An level by connecting an analog meter to the METER terminal on the rear panel.

●

*: COMP meter can only be selected when the speech processor is ON.

4-9

1673

ALC Voltage

+12V

Control Voltage

TX (Transmission)

Detection

Circuit

AMP

Linear Amplifier (Typical Input at 1 mW)

Output Power at Approx. 1 mw (0 dBm)

Connect Using a Coaxial Cable

GND

ALC

LKY

DRV Connector

REMOTE Connector (View from Rear Panel)

4 BASIC OPERATIONS

TX Meter (Digital)

In addition to the analog meter display, a two-tiered digital meter can also be displayed at the same time.

Configure in Menu [0-12] “TX Digital Meter”

Setting

Value

The TX meter (digital) only appears in the analog meter

•

display mode. The

•

ALC is shown at the upper level, while the display at the lower level varies according to the setting of the F [METER] digital meter. During transmission, the analog meter always displays the

•

TX output power.

Off (default)/ On

TX meter (digital) is displayed in a two-tiered bar format.

Switching the Antenna

Switch the antenna that is connected to the antenna connector. The

ANT 1/2, RX ANT and DRV settings are automatically stored in the antenna band memory. When the same band is selected subsequently, the same antenna will be selected automatically.

Press and hold F [ANT/PRE].

Pressing and holding F [ANT/PRE] switches the option between “ANT 1” and “ANT 2”.

When “ANT 1” is selected, << >> is displayed. When

•

“ANT 2” is selected, << >> is displayed.

Selectable Antenna Frequency Range (MHz)

0.03 to 0.522 10.5 to 14.5

0.522 to 2.5 14.5 to 18.5

2.5 to 4.1 18.5 to 21.5

4.1 to 6.9 21.5 to 25.5

6.9 to 7.5 25.5 to 30.0

7.5 to 10.5 30.0 to 60.0

60.0 to 74.8 (E type)

RX Antenna

Select an RX antenna.

use an RX antenna such as an HF low-band Beverage antenna

To or a directional loop antenna, connect it to the RX IN terminal on the rear panel. The input impedance is 50 Ω. A self-made or commercially available BPF or trap filter can also be inserted between the RX IN and RX OUT terminals.

Press [RX ANT].

Pressing [RX ANT] each time enables or disables the RX antenna of the selected band. When the RX antenna is enabled, << the screen.

>> is displayed on

Drive Output (DRV)

The allowable output frequency ranges from the drive output (DRV) are the 135 kHz band (135.700 kHz to 137.799 kHz), 475 kHz band (472.000 kHz to 478.999 kHz) and the amateur bands between 1.9 and 50/70 MHz. The output impedance is 50 output level is approximately 1 mW (0 dBm).

Turning ON/OFF Drive Output

Press [DRV].

Pressing OFF.

•

[DRV] each time toggles drive output between ON and

When drive output is ON, the [DRV] LED lights up in green. During output from the DRV terminal, TX signals will not be output from the ANT 1 and ANT 2 connectors. Transmission from the DRV terminal will not be displayed on the PWR meter. ALC (automatic level control) can be operated by inputting ALC voltage from an external device to the ALC terminal of the REMOTE connector. The operating status will be displayed on the meter in this case. The DRV output level is not controlled when there is no ALC voltage input. As such, the output level is determined according to the MIC input or [CAR] control settings.

●

careful attention to the connection when making use

Pay of drive output as described above.

Adjusting the Drive Output Level

Turn the [POWER] control.

“nnn%” is displayed according to the selected drive output level. [nnn: 5 to 100]

A different drive output level can be configured for the AM

•

and modes other than the AM mode. The resolution [1% / 5%] for changing the drive output level

•

be switched using the Menu 6-04 “Transmit Power Step

can Size” setting.

Band/Mode Setting Value

50M

70M

(E Type)

CW/FSK/PSK/SSB/FM/ SSB-DATA/FM-DATA

AM/AM-DATA

CW/FSK/PSK/SSB/FM/ SSB-DATA/FM-DATA

AM/AM-DATA

CW/FSK/PSK/SSB/FM/ SSB-DATA/FM-DATA

AM/AM-DATA

5 to 100 [%] (1 step or multiples of 5)

5 to 25 [%] (1 step or multiples of 5)

5 to 100 [%] (1 step or multiples of 5)

5 to 25 [%] (1 step or multiples of 5)

5 to 100 [%] (1 step or multiples of 5)

5 to 25 [%] (1 step or multiples of 5)

Ω and

Default

100

4-10

BASIC OPERATIONS 4

Built-in Antenna Tuner

It is important to ensure that the impedance of the coaxial cable and that of the antenna coincide with each other. An external antenna tuner or the built-in antenna tuner is used to adjust the impedance between the antenna and this transceiver.

Impedance Matching with the Antenna

1 Select a TX frequency. 2 Press F [ANT] to select an antenna.

When an external antenna tuner is connected to the ANT 1

•

connector, used. The built-in antenna tuner cannot be used with ANT 1 when

•

it is connected to an external antenna tuner.

3 Press and hold [AT] to perform tuning.

The

•

TX output power is automatically configured to 10 W and the SWR meter will be selected as the TX meter. <<

•

when the antenna tuner is ON during reception. To undo the tuning, press [AT] again.

•

the SWR (standing wave ratio) of the antenna is extremely

•

high (10:1 and above), an alarm tone (“SWR” in the Morse code) will be output, and the built-in antenna tuner will be disabled. Adjust the antenna to lower the SWR before restarting the

•

tuning operation.

4 Check to ensure that tuning is complete.

When

•

“T” is output. When tuning is complete, the blinking <<

•

[AT] LED become lit in solid light. “R<” blinks when the antenna tuner is ON during reception. If

matching is not achieved for a duration of 20 seconds, an

•

alarm tone will be output (continuous output of “5” in the Morse code). When this occurs, check the SWR meter and press [AT] to stop tuning when the SWR value is low.

●

Tuning outside the permitted TX frequency range.

●

During transmission, pressing and holding [AT] starts the tuning.

●

If matching is not achieved for a duration of 60 seconds, tuning will end automatically. When this occurs, the antenna tuner circuit turns OFF, << disappear, and the [AT] LED will go off.

●

If tuning does not end automatically even though the SWR of the antenna 3:1 or lower, adjust the antenna system

●

The SWR may not reach 1:1 even though tuning has ended.

select ANT 2 if the built-in antenna tuner is to be

transceiver switches to the CW mode and starts tuning.

>> and [AT] LED will start to blink. “R<” blinks

tuning is completed successfully, a Morse code tone

>> and

of the built-in antenna tuner will not be performed

>> will

to lower the SWR and try to perform tuning again.

Preset

The

tuning results can be stored as preset information in the builtin antenna tuner according to the preset frequency categories. When the built-in antenna tuner is ON, the preset information that corresponds to the current TX frequency is automatically configured for the built-in antenna tuner.

Press [AT].

<< >> appears on the screen. When the antenna

•

tuner is ON while receiving, << >> is displayed. The preset information that corresponds to the current TX frequency is configured for the built-in antenna tuner. When

•

the TX frequency is altered, the preset information that corresponds to the preset frequency category is automatically configured for the built-in antenna tuner. To turn off the built-in antenna tuner, press [AT] again.

•

Preset Frequency Categories for Built-in Antenna Tuner (MHz)

0.030 ≦ f < 1.850 14.100 ≦ f < 14.500

1.850 ≦ f < 2.500 14.500 ≦ f < 18.500

2.500 ≦ f < 3.525 18.500 ≦ f < 21.150

3.525 ≦ f < 3.575 21.150 ≦ f < 21.500

3.575 ≦ f < 3.725 21.500 ≦ f < 25.500

3.725 ≦ f < 4.100 25.500 ≦ f < 28.300

4.100 ≦ f < 6.900 28.300 ≦ f < 29.000

6.900 ≦ f < 7.050 29.000 ≦ f < 30.000

7.050 ≦ f < 7.100 30.000 ≦ f < 51.000

7.100 ≦ f < 7.500 51.000 ≦ f < 52.000

7.500 ≦ f < 10.500 52.000 ≦ f < 53.000

10.500 ≦ f < 14.100 53.000 ≦ f < 60.000

60.000 ≦ f < 74.800 (E type)

Holding Transmission at the End of Antenna Tuning

Transmission can be held after antenna tuning has ended.

Configure in Advanced Menu [7] “TX Hold After AntennaTuning”

Setting

Value

Off:

Returns to receiving state after antenna tuning has ended. On: Continues 10 [W] transmission in the CW mode after antenna tuning has ended.

●

Off (default)/ On

When transmission is held after antenna tuning has ended, the held status will be canceled when transmission operations such as [SEND] or PF [DATA SEND] is performed or when [AT] is pressed.

4-11

AT-300

ANT 1 Connector

TS-890

4 BASIC OPERATIONS

Switching Antenna Tuner Behavior during Reception

Signals tuner. Turning ON this function may help to reduce reception interference from other distant frequencies.

Two options to either store the ON/OFF status of the built-in antenna tuner separately for each band category or to store the same status for all bands are available.

received may be made to pass through the built-in antenna

Configure in Advanced Menu [8] “Antenna Tuner during RX”

Setting

Value

Off: Signals received do not pass through the built-in antenna

tuner. On: Signals received pass through the built-in antenna tuner.

●

Off (default)/ On

When full break-in is ON in the CW mode, the antenna tuner will function during reception regardless of the above setting. If the TX and RX frequencies are different during split operation, the antenna tuner will not function during reception regardless of the above setting.

Configuring the Built-in Antenna Tuner Behavior for Each Band

Configure in Advanced Menu [9] “Antenna Tuner Operation per Band”

Setting

Value

Off (default)/ On

Off: Stores the same ON/OFF status of the built-in antenna tuner for all bands. On: Stores the ON/OFF status of the built-in antenna tuner for each band category.

Connecting the External Antenna Tuner AT-300

To use the external antenna tuner AT-300, connect it to the ANT 1 connector and AT connector.

AT-300

•

AT connector is a control terminal that is used exclusively for AT-300. It cannot be used to control other external antenna tuners. When an external antenna tuner other than AT-300 is connected, make use of TX tuning.

will not function if it is connected to the ANT 2 connector.

●

AT-300

cannot be used with the 50/70 MHz band. When using a 50/70 MHz band antenna, connect it to the ANT 2 connector.

●

When AT-300 is connected to the AT connector and ANT 1 is used, the signal bypasses the built-in antenna tuner circuit.

●

Production of the AT-300 has been discontinued.

4-12

5 COMMUNICATING AIDS

COMMUNICATING AIDS 5

Split Operation

The same frequency is used for both reception and transmission during normal communication. Select either VFO A or VFO B in this case. However, depending on the circumstances, a different frequency may be chosen for reception and transmission. In this case, it is necessary to use two VFOs. This is known as “split operation”. “Split operation” is used in cases such as when using an FM repeater or when calling a DX station.

Press [SPLIT].

<< mode.

Press [A/B] to select “VFO A” or “VFO B”.

The value on the left is the RX frequency. (Indicated by in the example) The in the example)

Select a frequency.

•

Press [A/B] to select the other VFO.

Select a frequency.

Exiting Split Operation Press [SPLIT].

The transceiver switches to the simplex mode and the light for <<

Direct Input of Frequency Difference Specified by DX Station

To directly configure the frequency difference between the frequency specified by the DX station and the RX frequency, perform the steps below while receiving signals from the DX station.

Press and hold [SPLIT].

•

Enter the frequency specified by the DX station in

units of kHz.

To exit the configuration process, press [CLR]. If the frequency specified by the DX station is a positive value, enter the specified frequency in units of kHz using the numeric keypad. If the frequency specified by the DX station is a negative value, enter a “0” at the beginning of the frequency value. For example, if “+5 kHz” is specified, enter “5”. If “-5 kHz” is specified, enter “0” followed by “5”. After input is complete, the TX frequency is configured and split operation is now enabled.

•

Turning the Tuning Control to Search for a TX Frequency

To search for a TX frequency, perform the steps below while receiving signals from the DX station.

Press and hold [SPLIT].

•

Turn the Tuning control to search for a TX frequency.

To exit the configuration process, press [CLR].

Press [SPLIT].

The frequency that is found in step 2 is configured as the TX frequency and split operation is now enabled.

•

>> lights up when the transceiver enters the split

value on the right is the TX frequency. (Indicated by

To copy a selected VFO frequency to the other VFO, press and hold [A/B].

>> goes off.

>> starts to blink.

>> changes from a blinking to a solid display.

>> starts to blink.

>> changes from a blinking to a solid display.

⊿F Display

This item displays the difference between the RX frequency and TX frequency during split operation.

Configure in Menu [6-15] “Delta

Setting

Value

When the ⊿F display is ON, << >> is displayed below

•

the TX frequency display during split operation. When << >> is displayed below the TX frequency, the

•

band memory number on the right will not be displayed. When RIT or XIT is ON, the ⊿F value is the difference

•

between the TX frequency and the RX frequency with the RIT or XIT frequency added.

Off/ On (default)

Frequency Display”

Changing the split frequency using the [RIT/XIT] control

While in the split mode with the RIT/XIT function set to OFF, the split frequency can be adjusted by turning the [RIT/XIT] control.

Configure in Menu [3-12] “Split

Frequency Offset by

RIT/XIT Control”

Setting

Value

TX Frequency Offset while RX: Split

can be adjusted while receiving. While receiving signals from a DX-pedition station, turning the [RIT/XIT] control changes the TX frequency in advance to the frequency specified by the target station. RX Frequency Offset while TX: Split reception frequency can be adjusted while transmitting. While one’s own station is transmitting as a DX-pedition station, turning the [RIT/XIT] control changes the RX frequency in advance to the frequency specified for the target station. Both: Enables both the above.

●

Off (default)/ TX Frequency Offset while RX/ RX Frequency Offset while TX/ Both

transmission frequency

Adjustment of the split frequency using this function is disabled during TF-SET.

Configuring the Band Direct Key during Split Operation

Three options are available for selection with regard to the behavior when the band direct key is pressed during split operation.

Configure in Menu [3-13] “Band

Direct Keys in Split

Mode”

Setting

Value

RX Band: Changes the receiving band. RX Band and Cancel Split Mode: Changes the receiving

band and cancels the split mode. RX/TX Band:

Changes both the receiving and transmitting bands at the

•

same time. The transmitting band and receiving band is assigned with

•

the same memory number. Each

•

RX Band (default)/ RX Band and Cancel Split Mode/ RX/ TX Band

band can be adjusted while maintaining the split status.

5-1

5 COMMUNICATING AIDS

TF-SET (Setting the TX Frequency)

TF-SET is a function for temporarily switching the TX frequency and RX frequency. Signals can be received at one’s own frequency

while the TF-SET switch is pressed and held down, and the TX frequency can also be changed in this state. Doing so allows checking of whether there is interference in the newlyselected TX frequency.

A call is made to the target station when there is no interference

•

and at the right timing to ensure smooth communication with DX stations that are receiving calls from a large number of stations. In other words, the communication status of the DX station in the presence of interfering signals are taken into consideration and transmission is carried out using the TF-SET function at the instant when the DX station is in the receiving state and there is no transmission from other stations. Putting this function to good use enables communication with a larger number of DX stations.

1 Configure the split operation frequency. 2 Press and hold [TF-SET].

The TX frequency and RX frequency are switched.

3 Turn

the Tuning control while pressing and holding

[TF-SET], or press [UP]/[DWN] on the microphone.

Signals are received at the new TX frequency.

4 Release [TF-SET].

Reception starts at the original RX frequency.

●

Adjustment of the split frequency using the [RIT/XIT] control is disabled during TF-SET.

●

Turning on the frequency lock before using the TF-SET function helps to prevent the transceiver from losing communication with the DX station due to erroneous operation.

AGC

AGC (Automatic Gain Control) is a function for controlling the IF gain

automatically so as to minimize fluctuations in the strength of

the signal that is being received.

The AGC time constant is configured to FAST, MID or SLOW

•

according to the receiving status and operation mode (other than FM mode). The digital AGC circuit of this transceiver divides the time

•

constant into 20 levels from SLOW to FAST, with “1” being the fastest and “20” the slowest. Generally, the time constant is configured to a fast time constant

•

in the CW and FSK modes where fluctuations in the signal strength are well defined, and a slow time constant is used in the SSB and AM modes where changes are gradual. However, a fast time constant is also useful in the SSB and AM

•

modes to perform tuning quickly or when receiving weak signals. AGC can also be turned off.

•

A different default time constant for AGC is configured for each

•

mode as shown below.

Default AGC Time Constant Setting

Mode Setting Display

SSB SLOW

SSB-DATA SLOW

CW FAST

PSK FAST

AM SLOW

AM-DATA SLOW

AGC-S

AGC-FFSK FAST

AGC-S

Switching the AGC Time Constant

1 Select a mode other than FM. 2 Press [AGC] to select an AGC time constant.

Pressing [AGC] each time switches the selection in the following sequence: “AGC-F” → “AGC-M” → “AGC-S”.

Adjusting the AGC Time Constant Preset Value

1 Press and hold [AGC] to display the AGC

configuration screen.

2 Press

F3 [AGC] or [AGC] to select “FAST”, “MID” or

“SLOW”.

3 Press F4 [–]/ F5 [+] or turn the [MULTI/CH] control

to change the AGC time constant.

Setting

Value

1 to 20

5-2

The AGC time constant is fastest when it is configured to “1”, and slowest when configured to “20”.

The default AGC time constant values in the respective

•

operation modes are as follows.

Mode FAST MID SLOW

SSB 9 12 14

SSB-DATA 9 12 14

CW 9 12 14 FSK 7 11 14 PSK 7 11 14

AM 9 13 16

AM-DATA 9 13 16

AGC OFF

Turns

off AGC according to the status of the signals received. RF gain is fixed when AGC is set to OFF, which makes it easier to hear weak signals in some cases.

●

AGC is turned OFF while the S meter is deflecting due to the signal, sound may be output to the speaker or headphones at an unexpectedly loud volume.

Turn the [RF] control to turn down the RF gain level in advance. After turning off AGC, adjust RF gain by turning the [RF]

control until the signal can be heard clearly. To turn off AGC, perform the steps below.

1 Press and hold [AGC] to display the AGC

configuration screen.

2 Press

and hold F6 [(OFF)] to configure AGC to OFF.

<<AGC OFF>> lights up and the preset value display area is grayed out.

COMMUNICATING AIDS 5

AGC Quick Recovery

function performs recovery from the suppression that occurs

This when the RX signal contains pulse noise. The strength of pulse noise at which this function is activated is determined by adjusting the threshold level.

1 Press and hold [AGC] to display the AGC

configuration screen.

2 Press F2 [PULSE] to display the AGC Quick

Recovery configuration screen.

3 Press F3 [ON/OFF] to set the function to “On”. 4 Press F4 [–]/ F5 [+] or turn the [MULTI/CH] control

to change the threshold level.

Setting

Value

1 to 5 (default) to 10

●

This function may not be effective for pulse noise occurring in short time interval.

5-3

+ 35 hidden pages