![]() Difference: analog subsonic VS digital subsonic When there are multiple stations communicating on the same frequency, the subsonic technology can be used to prevent interference with radio stations that are not related to them. ![]() Since the frequency is below standard audio, it is called sub-audio. Sub-audio refers to a technique in which a frequency lower than audio is added to an audio signal for common transmission. Then the question comes, how is the sub-tone of the walkie-talkie divided? How does the subsonic function prevent interference? Here is the answer for everyone. When purchasing a walkie-talkie, you will find CTCSS, CDCSS, DCS, DTCS, QT, DQT, PL, TPL, and DPL in the function introduction… These are the sub-audio functions that represent the walkie-talkie.
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