9
Sound Filter
The receiver comes with a connectable sound filter, what is especially useful for noisy signals, as it dampens the
aggressive high sounds, making the sound easier to listen to. Deactivate this filter by pressing
FUNC
and
LOW
(8).
Activate/Deactivate Key Tone
Turn the unit on while pressing the transmission button (
PTT
on microphone). In this way you toggle between
activation and deactivation.
Interesting Facts Relating to the Technical Data
Storage and Backup of Set Data
The radio is no longer equipped with a lithium battery, but uses the low power backup technology. For this reason
data are only erased after a long time.
Ports for Additional External Devices
Microphone Jack (2)
6-pole, Jap. standard, suitable for screwable electret or other microphones with approx. 600 ohm to 1 kOhm
impedance.
PIN 1
Microphone NF
PIN 2 PTT-RX (not used for this unit) – also for NF extraction packet radio
PIN 3 PTT-TX contact
PIN 4
UP/DOWN button
PIN 5 Ground, shielding
PIN 6 Power supply for electret microphone (or other accessories)
Important:
Wiring according to “Albrecht” Standard, widespread for CB radios. Please observe when connecting
other microphones! In case you want to connect a different microphone: Only use microphones with electret
capsules. Additional devices, such as modems, etc. are only permitted in FM mode. Please observe the
regulations in the individual countries.
Speaker Jack (Rear)
3.5 mm mono jack, suitable for 4-8 ohm speakers with minimum 2-4 Watts. The internal speaker is automatically
muted when connecting an external speaker.
Maintenance and Programming
The following references are exclusively for expert service staff. Program settings are only permitted for authorized
users and for commercial export in countries allowing the corresponding versions.
No responsibility for damages and consequential damage caused by incompetent or not expressly by Albrecht
explained programming steps and other interference. The end user warranty generally expires with opening the
casing. Only use Albrecht specialized dealers for modifications during the warranty period!
Reset to Default and Deleting All Memory
A general reset to factory settings is possible by disconnecting from power supply and briefly pressing the
reset
button on the separate small daughterboard after removing the speaker cover (visible after removing the cover).
Perform this reset when experiencing malfunctions. There are inevitable external interferences, which may block
the processor or lead to certain functions being not or not correct performed. The interferences can be caused by
electric storms, overvoltage, to great HF irradiation and the like and are generally easily fixed by reset. However,
reset also deletes all station memories.
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