For those SW listeners who have found strange modulations sounds around 14 075KHz here's the culprit:

JT65 – The Basics
https://www.essexham.co.uk/jt65-basics

JT65 is one of the more specialist data modes that I’ve played with, but I must admit, it’s quite addictive. It’s also great for making contact over distance with low power, where a voice signal just can’t make the trip.

#amateur_radio #jt65 #radio #digital_mode #qrp