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CTR & CTM Question and answer 2023 verified
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CTR & CTM Question and answer 2023 verified ELF 3Hz-30Hz ONE WAY SUB COMS SLF 30Hz-300Hz Communications for subs ULF 300Hz-3kHz Communications in mines VLF 3kHz-30kHz LF 30kHz-300kHz 8 CHANNELS OF FREQUENCY DIVISION DIVISION MULTIPLEX TRAFFIC MF 300kHz-3...
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