Marine Radio Basics (16)

Learn the fundamentals of Cobra marine radios — how to use VHF channels, understand power settings, emergency features, and maintain reliable communication on the water.

What kind of antenna do I need?

Modified on Wed, 13 Aug, 2025 at 1:54 PM
Range of Cobra Marine Radios

Modified on Tue, 5 Aug, 2025 at 12:01 PM
Marine Radio SWR

Modified on Tue, 5 Aug, 2025 at 12:03 PM
Can I connect an external antenna to my handheld radio?

Modified on Thu, 9 Sep, 2021 at 3:15 PM
What is DSC (Digital Selective Calling)?

Modified on Thu, 9 Sep, 2021 at 3:15 PM
Why should I register my VHF radio and obtain an MMSI number?

Modified on Thu, 9 Sep, 2021 at 3:15 PM
Why is it so important to have a DSC radio with built-in GPS and/or the option to connect to an external GPS?

Modified on Thu, 9 Sep, 2021 at 3:15 PM
Why join BoatUS?

Modified on Thu, 14 Aug, 2025 at 1:48 PM
MMSI explained (Maritime Mobile Service Identity)

Modified on Tue, 19 Aug, 2025 at 12:56 PM
Can I use a repeater?

Modified on Tue, 30 Sep, 2025 at 2:19 PM