K8JTK Hub

Digital VoIP Multimode
Interlink System
(DVMIS)

Jeffrey Kopcak - K8JTK

Why, in the world...?

  • Ham radio experimentation
  • Support open source projects
  • Interlink ham radio VoIP modes for interoperability
  • Utilize ham radio spectrum
  • Reliable and resilient - hardware, power, weather
  • Fairly inexpensive (Emile approved?)

Packages:

  • AllStarLink - Linking over IP networks
  • G4KLX - Supporting programs for D-Star, DMR, System Fusion, P25, NXDN
  • DVSwitch - Tools and programs related to provisioning and operating Amateur Radio digital voice networks
  • thebridge - EchoLink compatible conference bridge

img: luis gomes

Packages: AllStar Link

AllStarLink is a world wide network of Amateur Radio repeaters, remote base stations and hot spots accessible to each other via the Internet and/or private IP networks
  • Open-source PBX Asterisk
  • Linux (including Raspberry Pi)
  • Jim Dixon - WB6NIL (SK)
  • app_rpt module - repeater controller
  • AllStarLink

img: luis gomes

Packages: G4KLX

Programs that support D-Star, DMR, System Fusion, P25, NXDN

  • Jonathan - G4KLX
  • ircDDBGateway, NXDNReflector, NXDNGateway, P25Reflector, P25Gateway, YSFReflector
  • MMDVM implemented in devices, boards, hotspots like Pi-Star and OpenSpot
  • github: G4KLX

Packages: DVSwitch

Tools and programs related to provisioning and operating Amateur Radio digital voice networks

Packages: XLXD

XLX Multiprotocol Gateway Reflector Server is part of the software system for the D-Star Network

  • Jean-Luc - LX3JL & Luc - LX1IQ
  • Four D-STAR reflector protocols: REF, XRF, DCS, XLX
  • XLXD speaks all four protocols +
  • DMR and YSF transcoding (not used, additional hardware)
  • github: XLXD

Packages: thebridge

CQiNet is a family of programs that combine Ham Radio with the Internet using Voice over IP (VoIP) technology

  • Skip - WB6YMH & others
  • EchoLink compatible conference bridge
  • Sourceforge: Thebridge

Putting it together

Chicago data center

  • Three VPSes (virtual private servers)
  • Linux Debian OS
  • Low latency to remote hardware

Remote hardware

  • Ten different networks! Eight full-time modes!
  • Any user on one network can communicate with users on any other
  • AllStar is the "Hub", individual nodes for control

img: Pixabay

K8JTK Hub: The Nodes

  • AllStar Link: 50394
  • DMR: Brandmeister Talkgroup (TG) 31983 3172783
  • DMR: TGIF Talkgroup (TG) 31983
  • D-STAR: XLX983A - "A" for Analog Bridge
  • EchoLink: *DVMIS* 600008
  • Hamshack Hotline: 94026   *99 - TX, # - RX
  • NXDN: TG 31983
  • P25: TG 31983
  • YSF: K8JTK-Hub 31983
  • Wires-X: K8JTK-ROOM 40680

Info on connecting, systems, radios, status, and more: K8JTK Hub

K8JTK Hub: Dashboards

  • Allmon2: 1XXX are private AllStar nodes
  • K8JTK call seen ALOT on dashboards: "default" callsign, calls lost in analog conversion

img: freestocks.org

K8JTK Hub: Dashboards

(screenshots)

  • Allmon2: 1XXX are private AllStar nodes
  • K8JTK call seen ALOT on dashboards: "default" callsign, calls lost in analog conversion

img: freestocks.org

Pretty pictures:
Logical connections

Pretty pictures:
IP connections

AmateurLogic.TV
Thank You!

The ALTV Sound Check net has been a test of the system.

Thanks to Tommy, George, Emile, Mike, and everyone who has connected for letting this system provide entertainment for your net!

THE END

Jeffrey Kopcak - K8JTK

- K8JTK@arrl.net
- Contact me for nets or other uses of K8JTK Hub
- This presentation is available on my website under the "Presentations" category: K8JTK.org