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Operating the Walkie−Talkies
79
Radio signals cannot be received when the P but-
ton is being pressed.
Selecting a channel
PMR446 (Private Mobile Radio) walkie−talkies can be used
throughout Europe free of registration and call charges.
There are 8 radio channels available within the frequency range
446.000 MHz to 446.100 MHz.
1 x M, X/Y, P Select the channel and confirm it
Every process is automatically cancelled if there is no
input within 5 seconds.
Channel Frequency (MHz) Channel 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
1
code
There are 38 codes available per channel. It is only possible to
communicate using the walkie−talkies when they are each set to
the same channel and CTCSS code.
The channel and CTCSS code are transmitted as inau-
dible signals together with the standard voice commu-
nication. When received, the voice communication sig-
nal is only transferred to the loudspeaker when the
channel and CTCSS code set on the receiver are iden-
tical to that of those received. If, by coincidence,
another subscriber is using the same channel and
CTCSS code, change to another free channel together
with the party being called.
2 x M
X/Y, P Select the CTCSS code and
confirm it
1
CTCSS: Continous Tone Coded Squelch System = Selective calling
79


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