What is the CG HF Working Frequency?

• A. 2670 kHz
• B. 3000 kHz
• C. 4000 kHz
• D. 5000 kHz

Answer: (A)

In Coast Guard HF operations, there is a single designated working frequency used to make initial contact with stations both at sea and ashore. This particular part of the spectrum is chosen because its propagation characteristics tend to provide reliable long-range reach under a wide range of conditions, which makes it the best channel for starting a conversation and coordinating traffic.

When you need to reach a Coast Guard station or another vessel, you tune to that working frequency first and listen for a response. If you hear a reply, you coordinate the next steps there or switch to a different agreed-upon channel for the actual traffic. This approach helps keep routine calling clear and reachable, even when the band is busy.

Other frequencies on the HF band aren’t reserved as the general calling or working channel; they’re used for different nets, special operations, or as alternates under specific conditions.