20 | CT590S user’s manual
RX backlight (RX-LED) - MENU No. 28
In this MENU you can choose the backlight color when the radio is receiving.
You can choose amongst :
OFF (backlight o)
GREEN
PURPLE
SKY BLUE
TX backlight (TX-LED) - MENU No.29
You can choose the backlight color when the radio is transmitting.
Available colors:
OFF (backlight o)
GREEN
PURPLE
SKY BLUE
Alarm Mode (AL-MOD) - MENU No.30
This function can set the tone alarm/code alarm/site alarm of the radio.
Keep pressed the CALL button for 3 seconds to start the alarm tone.
The following three options can be selected:
SITE ALARM: the speaker emits an alarm tone but the radio doesn’t tra-
smit;
TONE ALARM: the speaker emits an alarm tone and the radio transmits it;
CODE ALARM: the speaker emits an alarm tone and the radio transmits it
followed by ANI-ID code.
Frequency band (BAND) - Menu No.31
In frequency mode, push the BAND button to choose the desired frequency
band.
VHF: 144 - 146MHz
UHF: 430 - 440MHz
