Midland CT890 instruction guide
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Working mode (CH-MDF) - MENU 21
CT890 has four working modes available:
1.
Frequency mode (FREQ)
2.
Channel mode (CH)
3.
Fre 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.
