💻 Digital voice and the internet
Many repeaters are digital and linked over the internet: you talk on a handheld in Madrid and you’re heard in Buenos Aires. There are three systems, which don’t talk to each other:
- DMR (the most widespread in Spain, affordable radios): you pick a talkgroup. On the BrandMeister network, 214 is Spain (Spain’s country code), 91 is worldwide and 9990 is a “parrot” that plays your audio back so you can test.
- C4FM / Fusion (Yaesu) and D-STAR (Icom): similar, each with its own rooms.
- EchoLink: links ordinary FM repeaters over the internet. With a licence you can use its phone app.
- APRS on 144.800 MHz: your radio sends its position and short messages that appear on maps such as aprs.fi.
To find the repeaters near you, ask your radio club (the information changes often) or check URE’s lists and each network’s groups. All of this needs a licence to transmit; listening is free.