13500 What is it?

[ai8o]

13500 KHz 2200z February 3 2026
There is something that sounds like a deranged alarm clock, ticking away with occasional bursts of Morse too fast for me to copy.

Anybody have any idea what this is?

 

[markclark]

13500 KHz 2200z February 3 2026
There is something that sounds like a deranged alarm clock, ticking away with occasional bursts of Morse too fast for me to copy.

Anybody have any idea what this is?

Hey, its CODAR which measures ocean waves. Here's a link Coastal ocean dynamics applications radar - Wikipedia You may want to google 13500 khz and a lot of stuff about this will come up.

Good Luck !