How many DSC frequencies does the Coast Guard guard use?

How many DSC frequencies does the Coast Guard guard use?

• A. 5 frequencies
• B. 7 frequencies
• C. 9 frequencies
• D. 12 frequencies

Answer: (B)

DSC (Digital Selective Calling) frequencies are the dedicated channels used for distress, safety, and calling signals without voice traffic. The Coast Guard uses seven DSC frequencies to cover the different radio bands and propagation conditions, giving reliable reach whether you’re near on VHF or farther away on HF/MF. The primary VHF DSC channel is channel 70, and the remaining six frequencies are HF/MF DSC channels that support longer-range contact. This arrangement provides redundancy and ensures DSC calls can reach Coast Guard units in various situations. Seven is the standard count for their DSC plan, not five, nine, or twelve.

DSC (Digital Selective Calling) frequencies are the dedicated channels used for distress, safety, and calling signals without voice traffic. The Coast Guard uses seven DSC frequencies to cover the different radio bands and propagation conditions, giving reliable reach whether you’re near on VHF or farther away on HF/MF. The primary VHF DSC channel is channel 70, and the remaining six frequencies are HF/MF DSC channels that support longer-range contact. This arrangement provides redundancy and ensures DSC calls can reach Coast Guard units in various situations. Seven is the standard count for their DSC plan, not five, nine, or twelve.