SYS · VoiceOnline
Intercom and DMR
A big neon channel display and push-to-talk, talkgroups and DMR texts, zones and scanning, Soft SQ for weak signals, and live captions of what you hear, made on the phone and working offline.
Free, open-source ham radio for Android
The radio was always in your phone.
SignalDeck turns a rugged Android phone with a built-in two-way radio into a complete amateur station: DMR and FM voice, APRS, SSTV pictures, pager messages, M17 digital voice, FT8, Winlink e-mail, weather alerts and satellite passes, all on the radio already inside the phone.
Public beta · Android 10+ · needs root (Magisk) · free, GPL v3
Station statusUpdated with every release
Latest build
1.0.0-beta.20Released
27 Oct 2026
Phones supported
2 of 6 listedRadio bands
136–174 · 400–480 MHz
- DMR
- FM
- APRS
- SSTV
- FT8
- M17
- POCSAG
- Winlink
- Satellites
- Morse
- DTMF
- Weather alerts
Subsystems
One app, the whole station
SYS · DataOnline
Packet and digital modes
APRS with a station map and an internet gateway, SSTV send and receive, FT8, M17 digital voice on supported phones, pager messages, Winlink e-mail by radio, Morse and RTTY decoding, and NOAA weather alerts.
SYS · LinkOnline
SignalDeck Web
A built-in, PIN-protected web page on your own network runs the radio from a laptop or tablet, with audio, the APRS map, pager and messages.
Station roster
Runs on these phones
| Phone | Status | What works |
|---|---|---|
| Ulefone Armor 26 Ultra | Fully supported | The reference phone. DMR and FM, VHF and UHF. |
| ANYSECU W6+ | Supported, beta | FM, UHF only. No S-meter, band scope or fox hunt. |
| Ulefone Armor 20WT | Expected to work | Same radio family as the Armor 26. Confirmation wanted. |
| Blackview Xplore 1 | In progress | Same protocol, audio on a second port. Unverified. |
| Unihertz Atom XL | In progress | Bring-up running. |
| Ulefone Armor 3WT | Investigated | Older command set. Not supported yet. |
Features vary by phone, depending on its radio module. Another phone? Run the Device report in the app and send it. That is how new phones get added.
Uplink
Get the beta
Latest buildPre-release
SignalDeck 1.0.0-beta.20
Later builds arrive in the app: Device → Updates, with Release and Beta paths. Release notes
Install sequence3 steps
Root the phone with Magisk and install the APK.
Open SignalDeck and grant root. It imports your stock app's channels on first start.
Device → Keep access after reboot makes radio access permanent.
Crew
Help build it
Take part
Test for bugs, suggest features and talk with other SignalDeck users.
Make your phone compatible
Fork the project and add your phone. When it works, send it back for review and it is merged in for everyone.