How to Connect a Hotspot to Your DMR Network in 10 Minutes

Category: HotspotsDifficulty: ★☆☆~8 minutes

You have already built the hotspot (if not — see the build guide). What's left is to introduce it to the network: tell it which master to connect to and under which DMR ID. I'll show both the manual way (any Pi-Star/MMDVMHost) and auto-provisioning — where the hotspot configures itself.

What you need to know in advance

Your DMR ID — a personal 7-digit ID (obtained when you register on the network) or a hotspot ID. Without a valid ID the master won't let you in.
Master address — the domain or IP of the network server.
Port — usually 62031 (UDP) for Homebrew.
Password — the shared network password or a per-device one (depends on the network).

Manual way: MMDVMHost + DMRGateway

In modern RadioStar images, MMDVMHost does not log in to the master directly. In MMDVM.ini the [DMR Network] section points to the local DMRGateway, while the master address and password live in DMRGateway.ini. The key points:

MMDVM.ini [DMR Network]: GatewayAddress=127.0.0.1, GatewayPort=62031, LocalPort=62032;
DMRGateway.ini [DMR Network 1]: the master address, Port=62031 and the network password;
MMDVM.ini [General]: your DMR ID and callsign;
MMDVM.ini [DMR]: Color Code and enabling DMR.

Save, then restart DMRGateway and MMDVMHost. If you're opening Pi-Star for the first time, the default login and password will come in handy here.

One ID — one session Don't run two hotspots under the same DMR ID on the same master: the second session will kick the first, and the hotspot will keep "flickering" online/offline. Each device needs its own ID.

Auto-provisioning: the hotspot configures itself

Editing the ini by hand is fine, but a beginner can easily get the frequency, Color Code or password wrong. That's why in DMRhub the RadioStar hotspot image does everything for you:

the Pi boots with the image and brings up a Wi-Fi access point called RadioStar-Setup;
you connect to it, enter a login/password and your home Wi-Fi;
the agent reaches out to the portal, pulls your DMR ID, frequency, Color Code and secret, writes MMDVM.ini and DMRGateway.ini itself, then restarts both services;
the hotspot logs in to the master — done.

No manual ini files, no SSH, no guessing parameters — you can build the image right in your browser on the "Build image" page. After that, frequencies and static talkgroups are changed in your account, not on the device.

Verification: did it connect or not

Open the network's Last Heard or the hotspot dashboard — you should see "Logged into the master" there. Make a short transmission to the desired talkgroup and you'll see yourself on the air. If it's silent or the hotspot doesn't appear, calmly work through the systematic hotspot diagnostics: power, modem, frequency, Color Code, port forwarding.

What's next Once the hotspot is on the network, take a look at how private calls by DMR ID work and whether you can link your network with others.