Kenwood TS-890S Operation Manual - Page 46

4 BASIC OPERATIONS Dimmer Adjusting AF Gain 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. 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 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. 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 . 4 Press F2 [DIMMER] to select a dimmer preset. 5 Press F3 [ "LED". ]/ F4 [ ] to select "Display" or 6 Press F5 [-]/ F6 [+] or turn [MULTI/CH] to change the setting value. The setting values and default values are shown below. Dimmer 1 2 3 4 Display Display LED Display LED Display LED Display LED Setting Value 5 to 100 (5-step) 5 to 100 (5-step) 5 to 100 (5-step) 5 to 100 (5-step) 5 to 100 (5-step) 5 to 100 (5-step) 0 to 100 (5-step) 5 to 100 (5-step) Default 100 100 75 75 50 50 25 25 ● 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. 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. 4-2