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Operating the Walkie−Talkies
34
Transmitting and receiving
Transmitting
When you press and hold the P button, the icon appears in the display. On releasing the P button, you hear an acoustic
signal; also refer to Page 36.
a P, ð Transmit
Hold the walkie−talkie approx. 5 to 7 cm from your mouth and speak at a normal volume.
In order to talk to other subscribers, the respective walkie−talkies must be set to the same channel.
Receiving
The unit is ready to receive calls as soon as it is switched on. When a signal is received, the icon appears in the display.
b P Receive
Radio signals cannot be received when the P button 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.
¤
, 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 analogue codes (CTCSS 1 − 38) 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 code is transmitted as an inaudible signal together with the standard voice communication. When received, the
voice communication signal is only transferred to the loudspeaker when the channel and CTCSS code set on the receiver are
identical to that of those received (settings on the transmitter). If, by coincidence, another subscriber is using the same channel
and CTCSS code, change to a free channel together with the party being called.
2 x ¤ Activate CTCSS code programming mode
X/Y, P Select the CTCSS code and confirm it
1
CTCSS: Continous Tone Coded Squelch System = Selective calling
34


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