Midland CT890 instruction guide | 17
Working mode (CH-MDF) - MENU 21
CT890 has four working modes available:
1. Frequency mode (FREQ)
2. Channel mode (CH)
3. Frequency + channel number (CH FREQ)
4. Channel name (NAME)
To shift from one mode to another one:
In Standby mode press MENU + 21; select the desired working mode
with the ▼/▲ keys or with the encoder knob.
Push MENU again to confirm your selection.
Display backlight (ABR) - MENU 22
In standby mode, press MENU + 22. The screen will display “ABR ”.
Press MENU to enter the function. Push the ▲/▼ buttons or rotate the
encoder to enable/disable (ON/OFF) the backlight of the display, then
press MENU to confirm.
To return to the standby mode press EXIT.
Frequency offset (OFF-SET) --- MENU 23
The offset is the frequency difference between transmission and recep-
tion. The frequency offset of this radio is between 0 and 599.995 MHz.
In standby mode, press MENU + 23. The screen will display “OFFSET ”.
Press MENU to enter the function. Press the ▲/▼ buttons or rotate the
encoder to select the frequency offset or you can manually digit the of-
fset with the keypad. Press MENU to confirm.
To return to the standby mode press EXIT.
With the frequency offset, it is possible to transmit and receive in two
different frequencies.
You have to:
1. Set the working mode
2. Set the frequency shift direction and then the frequency offset
E.g.: if you want to receive on 430.025MHz frequency and transmit on
435.026MHz frequency: in Frequency mode, digit 4 3 0 0 2 5 then press
MENU + 24 + MENU to enter and set the frequency shift direction.
