Dimmer; Switching The Brightness Level; Adjusting The Dimmer Level; Adjusting Af Gain - Kenwood TS-890S Instruction Manual

4 BASIC OPERATIONS

Dimmer

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

Switching the Brightness Level

The preset brightness of the screen and LEDs can be adjusted
according to the surrounding conditions.
1 Press [MENU].
2 Press F [DIMMER].
• If F [DIMMER] is not displayed, press F [MORE] to display
F [DIMMER].
Pressing F [DIMMER] each time switches the dimmer setting
in the following sequence: "DIMMER 1" → "DIMMER 2" →
"DIMMER 3" → "DIMMER 4".
3 Press [MENU] or [ESC] to end the process.

Adjusting the Dimmer Level

Each of 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 [MENU].
2 Press F [DIMMER].
• If F [DIMMER] is not displayed, press F [MORE] to display
F [DIMMER].
3 Press and hold F [DIMMER].
The Dimmer configuration screen appears.
.
4 Press F2 [DIMMER] to select a dimmer preset.
5 Press F3 [
]/ F4 [
"LED".
6 Press F5 [–]/ F6 [+] or turn [MULTI/CH] to change the
setting value.
The setting values and default values are shown below.
Dimmer Display
Display
1
LED
Display
2
LED
Display
3
LED
Display
4
LED
Configuring "Display" for "Dimmer 4" to "0" and exiting
●
the menu turns off the lights on the screen completely.
Pressing [MENU] at this time temporarily switches the
screen brightness to the condition when the setting value
of "Display" is "5" and allows the information displayed
to be checked.
7 Press [MENU] or [ESC] to end the process.
4-2
] to select "Display" or
Setting Value Default
5 to 100 (5-step) 100
5 to 100 (5-step) 100
5 to 100 (5-step) 75
5 to 100 (5-step) 75
5 to 100 (5-step) 50
5 to 100 (5-step) 50
0 to 100 (5-step) 25
5 to 100 (5-step) 25

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 the control to the right raises the volume, while turning
to the left lowers it.
• 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.
• Start by checking the peak scale of the S meter, followed by
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.
In 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 varies according to the strength of the noise
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.