Working mode (ch-mdf) --- menu 21, Autobacklight (abr) --- menu 22, Offset frequency (off-set) --- menu 23 – MIDLAND CT790 User Manual
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Store the radio stations: While the radio is searching the station, press MENU. The screen will
display “
SAVE?”, then you can enter any number key between 1 and 9 key. The station will be
stored into the transceiver’s chip.
The transceiver has two radio-channels storable groups. As default, the group used for storing the
channels is the group 1.
E.g. if you want to store 88.1MHz into Channel 8 of the 1st group, just press MENU +8. If you want
to store this frequency into Channel 8 of the 2nd group, firstly, you should select the 2nd storage
group, and then press
. The screen displays “
TEAM 2”, then press MENU + 8.
To listen a stored station, under Radio mode, press the desired number key (from 1 to 9) to listen
it. Use
to choose between group 1 and 2.
Exit the Radio: Press the Side key 1 again to exit the radio mode.
NOTE:
When you are listening the radio, the current frequency/channel is still on use.
While you are listening the radio, press
EXIT to visualize the frequency band. To transmit, press
the
PTT button. Once the transmission ends, after 5 seconds, it will return on Radio mode auto-
matically.
WORKING MODE (CH-MDF) --- MENU 21
This transceiver has two working modes available:
1. Frequency mode (FREQ)
2. Channel mode
There are three kinds of channel mode settable:
a. Channel (CH)
b. Frequency + Channel number (CH FREQ)
c. Channel name (NAME)
To shift between Frequency mode (FREQ) and Channel mode:
In standby mode, press
MENU +21, then press the ▲/▼ buttons to choose the working mode.
Press
MENU to confirm.
You can shift between Channel mode and Channel Name mode only after have stored at least one
channel and one named channel.
AUTOBACKLIGHT (ABR) --- MENU 22
In standby mode, press
MENU + 22. The screen will display “ABR ”.
Press
MENU to enter the function. Press the ▲/▼ buttons to enable/disable (ON/OFF) the auto
backlight of the display, then press
MENU to confirm. To return to the standby mode press EXIT.
OFFSET FREQUENCY (OFF-SET) --- MENU 23
In standby mode, press
MENU + 23. The screen will display “OFFSET ”.
Press
MENU to enter the function. Press the ▲/▼ buttons to select the offset frequency or digit the
offset frequency directly through the key pad. Press
MENU to confirm.
To return to the standby mode press
EXIT.
It is possible to set the frequency shift direction and the offset frequency only in Frequency mode.
It is possible to transmit and receive in two different frequencies.
To set the offset frequency, in frequency mode, you have to set first the frequency shift direction.
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. Select +(positive direction) and press
MENU to confirm. Press EXIT to exit the
function. Press
MENU + 23 + MENU to enter the offset frequency function and then digit the fre-
quency deviation (5000). Press
MENU and then EXIT to exit the function. Now the frequency shift
direction and offset frequency have been set.