Activate and Deactivate Key Beep bP
Press and hold SCAN for approx. 3 seconds, bP oF or bP on is displayed (depending on previous
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setting).
Select with the channel selector and wait until the display resets.
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Activate and Deactivate Roger Beep Tone
"Roger Beep" is a tone signal after releasing the push-to-talk button, which can be added. The tone signals the
other station, that you have stopped talking.
Press and hold SCAN for approx. 3 seconds, then press again briefly. r9b oF or r9b on is displayed.
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Select with the channel selector and wait until the display resets.
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Toggle Backlight Color LIGHT (LI 9 H t)
The display backlighting can be changed in the main colors RED GREEN BLUE and mixed colors, so that a total of
7 different colors are available.
Press and hold SCAN for approx. 3 seconds, then press twice again briefly. L I 9 H t and a number
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between 1 and 7 is displayed (depending on current backlighting).
Select with the channel selector and wait until the display resets.
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Select a Transmission Timer (Transmission Time Limiter) TOT
You can limit the maximum permitted uninterrupted transmission time, if desired. The transmitter turns off and you
have to release the PTT button once to reset the time-out timer to be able to transmit again, if you pressed the PTT
button too long.
Press and hold SCAN for approx. 3 seconds, then press 3 times again briefly, TOT and a number
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between 0 and 30 is displayed.
Select with the channel selector and wait until the display resets.
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Interesting Facts about the Technical Specifications
Storage and Backup of Set Data
The radio uses a flash memory to save the latest settings. Hence no data is lost in de-energized state, even over a
long period of time. The radio can thus be switched on/off via the vehicle ignition or it can be stored without the
settings (especially the country setting) changing.
Connections for External Devices
Microphone Jack (2)
6-pole, Jap. standard, screw-in type, suitable for electret or other microphones with approx. 600 Ohm to 1 kOhm
impedance, except UP/DOWN button (pin 4) according to usual "Albrecht" standard.
PIN 1 Microphone NF
PIN 2 PTT-RX contact (on GND during reception) - also for NF uncoupling packet radio
PIN 3 PTT-TX contact (on GND during transmission)
PIN 4 UP/DOWN button (caution, special circuit for AE 5890 EU)
PIN 5 Ground, shielding
PIN 6 Power supply for electrets microphone (or other accessories)
Important: The circuitry corresponds with the "Albrecht" standard, which is widely used for CB radio (exception PIN
4). Please observe if connecting different microphones! In case you want to connect a different microphone: only
use microphones with electrets capsules and leave PIN 4 unused, if necessary. Additional devices such as
modems are only to be used in FM mode. Please observe the regulations of the respective countries. Data
transmission is not everywhere permitted.
Speaker Jack (Rear)
3.5mm mono jack, suitable for 4 to 8 Ohm speakers with at least 4 to 6 Watts. The internal speaker is
automatically muted when connecting an external speaker.
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