Guides

FreeDV is an open-source digital voice mode for HF. While newer modes like RADE (Radio Autoencoder) are emerging, established modes such as 700D and 700E are still widely used today....

If you’ve recently searched for information about the LinHT radio, you’re not alone. LinHT has started appearing in amateur radio and software-defined radio (SDR) discussions, often described as an open-source,...

TETRA for Beginners: Meet TETRA If you’ve spent any time exploring digital voice in amateur radio, you’ve probably noticed something interesting: many of the technologies we use today didn’t start...

Digital voice has a reputation for being “complicated”, but that’s only because it introduces a few new ideas that analog FM never needed words for. Once you understand those ideas,...

FreeDV is an open-source digital voice mode for the HF bands that delivers high-quality digital audio using a standard SSB transceiver. Unlike FM repeaters or networked modes such as DMR,...

Have you ever been cruising the HF bands searching for that rare DX station when suddenly you stumble across a strange roaring sound - almost like a 1990s dial-up modem...

If you’ve been exploring digital voice on the ham bands, you’ve likely come across modes like DMR, Yaesu Fusion, and P25 - each offering more consistent audio quality and better...

Curious about P25? This P25 for Beginners guide explains what Project 25 is, how it works, and why it’s so widely used in public-safety communications - and even by some...

M17 for Beginners: Meet M17 If you’ve been active on the ham bands lately, you’ve probably noticed that digital voice modes are everywhere. DMR, D-STAR, and Yaesu Fusion have opened...

This D-STAR for Beginners guide walks you through every step - from choosing your first D-STAR capable radio and registering your callsign to linking reflectors, using a hotspot, and making...