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Operating the Walkie−Talkies
58
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 fre-
quency range 446.000 MHz to 446.100 MHz.
1 x, /, 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
/ DCS
2
code
There are 38 analogue (CTCSS 1 − 38) and 83 digital (DCS 1 − 83) 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/DCS code.
The CTCSS/DCS codes are transmitted as inaudible signals together with
the standard voice communication. When received, the voice communica-
tion signal is only transferred to the loudspeaker when the channel and
CTCSS/DCS code set on the receiver are identical to that of those re-
ceived (settings on the transmitter). If, by coincidence, another subscriber
is using the same channel and CTCSS/DCS code, change to a free chan-
nel together with the party being called.
2 x Activate CTCSS code programming mode
/ Select the CTCSS code and confirm it
or
3 x Activate DCS code programming mode
/ Select the DCS code and confirm it
1
CTCSS: Continous Tone Coded Squelch System = Selective call
2
DCS: Digital Coded Squelch = Selective call
58


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