Enter your search term here...
Marine Radio Basics
What kind of range can I expect?
What kind of antenna do I need?
Range of Cobra Marine Radios
Marine Radio SWR
Can I connect an external antenna to my handheld radio?
What is DSC (Digital Selective Calling)?
Why should I register my VHF radio and obtain an MMSI number?
Why is it so important to have a DSC radio with built-in GPS and/or the option to connect to an external GPS?
Why join Sea Tow?
See all 12 articles
Marine Radio Troubleshooting
I cannot access one or more marine channels.
I am not able to communicate.
I hear excessive noise from the radio.
Why am I getting a "check plotter" alarm?
Marine Radio Tech Tips
MR F55 EU / MR F75 EU DSC Call Log
Charge Contacts in Handheld Radios
Connecting an External Antenna to Your Handheld Marine Radio
Connecting a non-Cobra GPS Device to the MR F45 / 55 / 75
Connecting a GPS Device to the MR F57
MR F57 / MR F77 "Check Plotter" Alarm
MR F57 / MR F77 "Demo Mode"
MR F75 - Connections for External Speaker / PA Speaker
Connecting a GPS Device to the MR F77
How to reset a Cobra handheld marine radio.
Marine Radio FAQs
MR HH600 Navigation