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Marine Radio Scanning

Marine Radio is an interesting area, and one that not too many people have accurate data for. While we're under construction here, let's look at a few helpful items.

Quick and Dirty Monitoring Tips:

Four Different Calling Channels:  That's right. 156.800 is not all that it's cracked up to be. On the rivers, 156.65 reigns supreme, and there are any number of Port Ops frequencies to be investigated when you're out there ship-watching.

Types of Channel Usage:

Those "A" and "B" Channels: (In the US, "B" stands for Bootleg!) - Why do you hear channel 22 referred to as "22-Alpha?" Because many channels on the international band are split-frequency. On international radios, the regular channel number indicates the split. An "A" channel is simplex on the ship frequency. A "B" channel is simplex on the shore frequency (4.6 MHz above the ship frequency) NO "B" channels that I'm aware of are legal for marine simplex in the US.

Essential Marine Channels for Your Scanner

Full US/International Marine Channel List

The Missing Marine Channels - What about channels 30-59 or 90-120? Where did they come from, who if anyone uses them, and did they ever really exist?

Scanning on the James River


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