11
An emergency channel can of course only work if as many stations as possible are
listening in. Therefore listen in to this channel as often as possible; the MEMO button will
help you. In some countries, (like Sweden) CH 9 is only allowed to be used for
emergency traffic. Other countries use a different trucker channel:
•
Channel 19
: Trucker channel (in AM) in France, Spain and Italy.
Transmitting and correct use of microphone
With the transmission button (Push To Talk) on the side of the microphone you can
switch between receiving and transmitting:
•
Press PTT button to transmit.
The display shows TX .
•
Release PTT button again to switch back to receiving.
When the transmission PTT button is depressed, you can speak from a distance of
about 5-10 cm into the microphone. The modulation amplifier of your AE 4190 is
sensitive enough and enables you in most cases to speak with even more distance,
depending on how loud your voice is. An automatic regulator ensures that your partner
always hears your signal at the same volume.
It is best to test the best distance from the microphone for yourself with the help of
another station.
External sockets
External loudspeaker
Depending on the surrounding noise, it can be advisable to hook up an external loudspeaker.
Usual commercial radio loudspeakers with 4-8 ohms impedance and 2-4 W minimum output
can be plugged in.
The cable can be up to 3 metres long. For car loudspeakers, make sure to use a two-pin 3.5
mm jack plug and ensure that none of the loudspeaker connections are attached to the
vehicle chassis.
External S-meter
On the back, your AE 4190 has an S-Meter socket on the rear side, which allows you to
connect up an external S-Meter to show the relative signal strength. This gives more exact
information than the bar display. Please ask your authorized dealer about external S-meters.
The S-meter should be installed near the radio set using a cable no longer than 3 metres. You
need a 2.5 mm jack plug to connect it up. The polarity is positive, i.e. the positive pole of the
S-meter is connected to the inner pin, and the negative pole is on the outside.
Microphone socket
The 6-pole microphone socket on the front side is wired according to the well-known Albrecht
specifications, which also meet the recommendations issued by the German manufacturers
of CB radios.
Apart from the hand microphone included in the package, you can also hook up other
microphones and accessories.
The microphone socket has been tested and is suitable for nearly all kind of microphones,
even those with amplifiers or selective calling devices. According to the latest regulations you
are also allowed to plug in modems or so-called TNC`s for data transfer (Packet Radio).
