switel WTF 727, Руководство по эксплуатации

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31
Operating the Walkie−Talkies
64
Receiving
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 in the frequency range
446.000 MHz to 446.100 MHz.
1 x
M
,
X
/
Y
,
P
Select the channel and confirm it
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
/CDCSS
2
code
There are 38 analogue (CTCSS 1 − 38) and 83 digital (CDCSS
39 − 121) codes available per channel. It is only possible to com-
municate using the walkie−talkies when they are each set to the
same channel and CTCSS/CDCSS codes.
The channels and the codes are transmitted as inaudi-
ble signals together with the standard voice commu-
nication. The voice communication is only transferred
to the receiving device’s loudspeaker when the chan-
nel and the code that it is set on is identical to that re-
ceived.
If another subscriber is coincidentally using the same
channel and code, switch to a different, free channel to-
gether with the person operating the device called.
1
CTCSS: C ontinous T one C oded S quelch S ystem = Selective call
2
CDCSS: C ontinous D igital C oded S quelch S ystem = Selective call