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● Companding
It is a function setting which prevents the inter-channel
interference.
● CDCSS Mode
It is valid only when you program the CDCSS on the channels.
This function has two selections: "normal signaling" and "special
signaling". Normal Signaling refers to the CDCSS codes on the
channels is ordinary codes, we can talk to each other with the
same CDCSS; Special Signaling refers to the CDCSS codes on
the channels is special processed codes. When the transceivers
in one company are programmed the same frequency with the
same CDCSS and special signaling, they can avoid the signal
interferences from the other companies' transceivers.
● CTCSS/DCS
The transceiver has 50 CTCSS and 208 DCS, also nonstandard
subaudio can be programmed! CTCSS function is used to avoid
mutual interference among various users and also to avoid
hearing irrelevant calls and interference signals. CDCSS is a
further development of the continuous tone-coded squelch system
or CTCSS that uses a slow-speed,binary data stream passed as
sub-audible data along with the transmission. It adds a tone into
your transmission at a certain frequency.
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