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6.CTCSS (Continuous Tone Coded Squelch System)
Licence free radio’s operating on the 400~470 MHZ frequency band, like the
Twintalker, have 8/20/22 available radio channels. If there are many radio’s
users in your neighborhood, there is a chance that some of these users are
operating on the same radio channel. To prevent that you receive signals
from other users, sub-channels have been integrated.
Two radios only be able to communicate with each other not only on the
same channel but also set to the same sub-channels.
There is the sub-channels:continuous tone squelch system(CTCSS)
When using CTCSS, a low frequency tone(67-250Hz)will be transmitted
along with the voice signal. There are 99 available tons to choose.
Note: To disable CTCSS, select code "0F” for CTCSS in the menu. When
pressing PTT button to confirm.
7.CTCSS
·Press the MENU-button (11) twice: The current CTCSS code flashes on
the display
·Press the ▲-button (4) or the ▼-button (7) to change to another code.
·Press the PTT-button (15) to confirm and return to stand-by mode.
Note: To disable CTCSS, select code "0F” for CTCSS in the menu. When
pressing PTT button to confirm.
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