D-Star / IRCDDB / XReflectors / DPlus


The ircDDB-Network is a amateur radio network for exchanging routing information.


  • The ircDDB-Network is an intermediate step to a real open D-Star network without having the problem of a loss of connectivity. It combines the need for a stable network (US-Trust-Network) and other developments which can move D-Star forward. It should be accepted as an Add-On-application on all existing networks.
  • The ircDDB-Network provides a robust interface, which can’t break the network, even if developers make something wrong. It should encourage more people to give D-Star development on the network side a try.
  • We want to get a high penetration allowing self-made D-Star gateways to communicate with many systems.
  • The ircDDB-Network is designed as a distributed network allowing it to run several servers in different countries. We want to find reliable partners to setup more servers around the globe.
  • We want to get a worldwide D-Star network with at least a functional call sign routing with a roaming time below five seconds.


  • Supports all current call sign routing enabled D-Star Networks
  • Provides the call sign routing feature to developers (might be useful for D-Star-Hotspots or DV-Dongle-Users)
  • Allows to attach gateways without US-Trust connectivity making the ircDDB-Network their default
  • Realtime roaming: Available for users between gateways and different modules
  • Dynamic IP support: Realtime update of gateways IP-address on DSL reconnect
  • Access control: Password protected logins for the gateway clients
  • Load balancing: Supports thousands of gateways/users (using multiple network servers)
  • Scalability: The network uses proven technology on distributed servers.
  • Visualisation: Provides MH-data to Visualisation Servers
  • Visualisation: Provide URCALL, RPT1, RPT2, MYCALL fields to Visualisation Servers

D-Star IRCDDB systems that are provided for our local HAMs. (Provided by W4EDP)

  • W4RRG-B  444.725, atop Signal Mountain – IRCddb Dxtra, X Reflector & DCS Reflectors
  • N4LMC-C  145.160, atop Lookout Mountain – IRCddb Dxtra, X Reflector & DCS Reflectors
  • XLX139-D/XRF139-D/DCS139-D – Bridged to XRF423-A, REF090-D DPlus reflector, Wires-X SOUTHEAST-LINK 43389, YSF Room US SOUTHEASTLINK, FCS Relector FCS003-89, DMR TGIF SOUTHEASTLINK – TG # 43389, DMR Brandmeister TG # 314722
  • SELINK Smart Group via QuadNet.

The W4RRG and N4LMC IRCddb D-Star systems atop Signal Mountain (B module) and Lookout Mountain (C module) covers Chattanooga and surrounding areas in all directions.

Both systems B and C modules are linked as follows:

  • W4RRG-B – Linked to XRF757-A full time
  • N4LMC-C – Linked to XRF139-D full time

The W4RRG-B  system is “homed” to QuadNet (XRF757A), The N4LMC-C system is “homed” SouthEast Link (XRF139-D), but feel free to change to any room of your liking.  As with any repeater system, be polite and make sure no one is using the current room… then enjoy!  Please be just as polite when you leave and return the system to it’s “home” when you’re finished.

The N4LMC-C 145.160 system is also bridged into Wires-X, XReflectors, DPlus Reflectors, YSF, FCS, SRF, DMR.  Please see below for more information on the reflectors, talk groups and nodes.

  • Wires-X: Room 43389
  • YSF: US SouthEast Link
  • FCS: FCS003-89
  • SRF: SouthEast Link
  • D-Star: Reflector XLX/DCS/XRF139-D and XRF423-A, N4LMC-C 145.160.
  • DMR: Brandmeister Talk Group 314722
  • DMR: TGIF Network Talk Group 43389

Feel free to change to any reflector of your liking. As with any repeater system, be polite and make sure no one is using the current reflector… then enjoy! Just please be as polite when you leave and return the system to the way you found it when you’re finished.

Dashboard / Status Pages for D-Star Systems