MERICALINK SUPPORT

Questions, meet
clear answers.

Everything you need to understand membership, IDs, equipment, frequencies, and getting your site online.

01

Getting started

What is MericaLink?+

MericaLink is a member-operated private DMR network built around open-source DVM software. It connects approved radios and MMDVM sites through a centrally managed DVM core.

Who can join?+

Members of the MericaLink Discord server can sign in. Your Discord role determines whether you receive member or administrator access.

Do I need Pi-Star?+

No. MericaLink installs and configures DVMHost directly. The goal is a clean Ubuntu or Raspberry Pi setup without a Pi-Star image.

How long does setup take?+

Once your radio and site details are entered, the portal generates a private enrollment code. Most installations require one command plus a reboot or service check.

02

Radios and IDs

Can I use an existing amateur DMR ID?+

Yes. Enter the ID and call sign when adding your radio. MericaLink checks the information against RadioID.net before accepting it as verified.

What if I do not have a DMR ID?+

MericaLink automatically assigns the next available private network ID, beginning in the 10000 range. Occupied and administratively blocked IDs are skipped.

How many radios can I register?+

The standard member limit is three radios. Administrators can adjust this network-wide or help with a legitimate exception.

Why might a registration be denied?+

Common reasons include reaching your equipment limit, submitting too quickly, using an occupied ID, or attempting to use a call sign or account on the administrative blocklist.

03

Sites and hardware

Which MMDVM boards are supported?+

Common USB-connected MMDVM boards and Raspberry Pi hats are supported. During site creation you can select automatic detection or a Linux device such as ttyACM0 or ttyUSB0.

Can a duplex MMDVM board run simplex?+

Yes. Select Simplex hotspot and enter the authorized frequency. Both the radio and hotspot will use that same frequency.

How many sites can I create?+

The standard member limit is two sites. Every site receives its own peer ID and private enrollment credentials.

What operating system should I use?+

Ubuntu 24.04 is the primary supported choice for a PC or VPS-style host. Raspberry Pi users should use a current 64-bit Debian or Ubuntu-based image.

04

Frequencies and operation

Does MericaLink authorize me to use a frequency?+

No. You are responsible for operating only where you are legally authorized. The portal records your authorization basis and reference but does not grant spectrum rights.

Can I enter my own simplex frequency?+

Yes. The hotspot form accepts supported VHF or UHF MMDVM frequencies. You must attest that you are authorized to use the selected frequency.

Where can I find talkgroups and radio settings?+

Sign in and open Pairs & talkgroups from the member dashboard. Approved radios also include a programming worksheet with frequencies, color code, time slot, and talkgroups.

What is the Parrot talkgroup?+

Talkgroup 9990 is the network echo test. Transmit a short message and the network returns it so you can check audio and connectivity.

05

Troubleshooting and privacy

My MMDVM is not detected. What should I check?+

Confirm the USB cable supports data, verify the board appears under /dev/ttyACM* or /dev/ttyUSB*, and make sure the site’s modem selection matches the detected device.

Why is my radio bonking instead of transmitting?+

Check the programmed RX/TX frequency, color code, time slot, contact type, and talkgroup. Also confirm the radio ID is active and the site reports online.

Are site passwords displayed to other members?+

No. Enrollment credentials are private, single-use, and tied to one site. Administrators can revoke a site without revealing its credential.

Where can I get help?+

Join the MericaLink Discord community and include your radio model, site name, operating system, modem device, and the latest service error without posting any passwords or enrollment codes.

STILL STUCK?

Bring the details.
We’ll help you connect.

The community can help diagnose radios, MMDVM devices, service status, and programming—without asking you to share private credentials.

Open Discord