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Operating the Walkie−Talkies
31
Selecting a channel
M Activate Settings mode
: or ;, P Select the channel and confirm it
Chan-
nel
Frequency (MHz) Chan-
nel
Frequency (MHz)
1 446.00625 5 446.05625
2 446.01875 6 446.06875
3 446.03125 7 446.08125
4 446.04375 8 446.09375
Selecting the CTCSS code
All the calls on walkie−talkies are signalled which occur within the range of reception. A
condition for this is that all the walkie−talkies are set to the same channel. To prevent
mutual interference, a CTCSS code can be defined for the set channel. 38 CTCSS co-
des can be set per channel.
2 x M Activate Setting mode
: or ;, P Select the CTCSS code and confirm it
Each CTCSS code complies to a specific tone frequency transmitted by
the walkie−talkie. Communication between the subscribers is only then
possible when both parties are using the same channel and CTCSS code.
An exception is CTCSS code 0". In the case of this setting, all the calls
on the set channel can be heard regardless of the CTCSS code. To be able
to participate in the radio communication, it may be necessary to switch
from CTCSS code 0" to the CTCSS code being used.
If you want to communicate with the walkie−talkies which are not using a CTCSS, you
must select CTCSS code 0" on your walkie−talkie.
Searching for a channel
Signals are searched for in the eight channels in a continuous cycle. The icon
appears in the display. If an active channel is detected, the channel search stops.
Press the P button to enable radio communication. If the P button is not pres-
sed, channel search resumes after five seconds.
Starting channel search
4 x M Activate Setting mode
: [
y
], P Start the channel search
Stopping channel search
4 x M Activate Setting mode
: [
], P Stop the channel search
1
CTCSS: Continous Tone Coded Squelch System = Selective call
31


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