Albrecht DB 270, User Manual, Page: 47 / 88

To set the shift password via DB 270 programming software
Valid or “unvalid” password can decide whether or not a user can select between the
Frequency or Channel mode. With an “unvalid” password user can any time select between
these modes, with a valid password user needs to know exactly this password, otherwise he
cannot change the mode.
This is useful if a user shall only operate on certain channels which had been programmed by
the service operator before. So such a user cannot make anything wrong- he can only use
the channels which had been programmed for him.
Setting the password with
six times the digit "0" is invalid (that means the shift password
function is turned off.
Setting a password where the set is not full of digits "0" (less than 6 times “0”) is a valid
possible password
.
Change radio from Frequency (FREQ) to Channel mode possible
•
with “invalid” password: In standby, press MENU +21 , then press UP / DOWN to
choose working mode press MENU to confirm.
•
with “valid” password: In standby, press MENU +21 , then press UP / DOWN to
choose working mode press MENU to confirm, the screen displays six short line
. Now enter the password, the transceiver shift to the selective mode.
NOTE:
Channel mode and channel name mode can be selected only after at least one channel and
one named channel had been stored.
Setting Auto Backlight (ABR) --- MENU 22
•
In standby, press MENU + 2 2 , the screen displays
•
Press MENU to enter, it shows "ON",
•
press UP / DOWN to select ON/OFF auto backlight function,
•
then press MENU to confirm, press EXIT return to standby.
Note:
When the function sets "ON" for opening the auto backlight, it means only when you press the
number key, the backlight is opened. The backlight is closed when transmitting or receiving.
Shortcut Switch on Frequency Mode and Pure Channel Mode
In standby, press MENU + TDR key to switch the mode. Without password, you can switch it
directly.
Otherwise, you have to input the password firstly.
Setting Offset Frequency (OFF-SET) --- MENU 23
Offset frequency means the difference between TX and RX frequency for Repeater
Semiduplex operation. This transceiver's offset frequency range is between 0 to 69.950MHz.
For amateur use, 600 kHz is standard on VHF, for commercials 4.6 MHz is standard on VHF.
On UHF amateurs use different standards (7.6 MHz in Germany / Austria , 1.6 MHz in other
European countries) and 10 MHz for commercial use.
•
In standby mode, press MENU + 2 3 , the screen displays
•
Press MENU to enter, then press UP / DOWN to select offset frequency or input the
offset frequency through key pad directly, press MENU to confirm, press EXIT return
to standby.