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55 [97.101]Why should an amateur operator normally avoid transmitting on 14.100, 18.110, 21.150, 24.930 and 28.200 MHz? G 1 E 10 A A. A system of propagation beacon stations operates on those frequencies B. A system of automatic digital stations operates on those frequencies C. These frequencies are set aside for emergency operations D. These frequencies are set aside for bulletins from the FCC  
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