User manual

14
Data transfer
You can connect an interface for data transfer in the microphone socket instead of
the usual provided microphone also other microphones and accessories. In some
countries You may also connect additional devices for the data transfer (Packet
Radio) there. This kind of data transfer is permitted only on certain channels and only
for amateur applications. The following Packet-Radio-Channels are valid only in
Germany! (After the newest official gazette Vfg 3/2008):
Data transmission channels:
6, 7, 24, 25, 40, 41, 52, 53, 76 and 77
Please, take in consideration that channel 40 is used as a calling channel in
Switzerland. So please show “Ham spirit” and do not use channel 40 for data
transmission near to Switzerland!
Gateway Radio
So-called Gateway-Radio is like an automatic relay station, these stations are CB
radios, which are provided by engaged radio CB operators and have got an access to
the Internet. The speech audio signals which are received by the gateways cross the
Internet to other systems (so conversation groups can grow up in a kind of voice over
IP chat rooms). One gateway receives a signal and transmits it to the Internet. Other
gateways receive it from the Internet and transmit it to other CB stations. This can be
done in all directions.
Gateway Radio Channels in Germany are:
11, 29, 34, 39, 61, 71 and 80
Do not be surprised, when You hear CB signals from very far areas on these
channels. It is quiet sure, that these signals are transmitted from a gateway in your
neighbourhood. You can simply participate in these CB chats by simple pressing
Your PTT and talk with them. The only difference to “normal “ CB stations is the fact
that it may be necessary to allow a longer pause between transmit and receive.
MIC Gain setting
For dynamic microphones, the full clockwise position of the MIC gain knob above the
mic socket will be optimised. If You should use the supplied electret or other
preamplified microphones, or if You speak with a very loud voice or in high
surrounding sound environment, we recommend to readjust the potentiometer more
to counter clockwise positions. Start from a medium position and check with another
station!
External sockets
External loudspeaker
Depending on the surrounding noise, it can be advisable to hook up an external
loudspeaker. Standard 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 mono type plug and ensure that none of the loudspeaker connections is
attached to the vehicle chassis!