• K0USY Group

    DMR Repeaters, IPSC Linking, DMR/IPSC Application Development

  • IPSC Linking

    K0USY Group operates multiple IPSC Linking/Bridging systems, intended for use by those who'd like interconnectivity, but prefer more local networks to internationally scoped ones.

    IPSC/DMR Application Development

    K0USY Group hosts several IPSC networks specifically for experimentation and application development. Additionally, K0USY group has developed it's own original interpretation of the IPSC network protocol, called DMRlink and it's own interpretation of HomeBrew Repeater protocol (as used by MMDVM) called HBlink.


    K0USY Group started as a small club deploying Echolink-enabled repeaters in northeast and north central Kansas. Today, our focus is on linked DMR systems.

  • DMR System Settings

    All K0USY DMR repeaters use these specifications unless otherwise noted

    TS/TGID Info

    Timeslot 1:

    • TGID 2 - Local Calling
    • TGID 9 - Linked TGIDs

    Timeslot 2:

    • TGID 3120 - Kansas statewide
    • TGID 9 - Local Calling
    • All Call - EmComm (approved use only)


    Radio Settings

    Color Code: 1
    Admit Criteria: Color Code Free
    In Call: Follow Admit Criteria
    ARS: Disabled

    Roam Beacon: Disabled
    Allow Interrupt: Checked
    TX Interruptible: Unchecked
    Enhanced Access: Unchecked
    Private Calls: Timeslot 1, Brief

    TS 1: Linked Talkgroups

    Use these trigger TGIDs on TS1 to enable linked Talkgroups. Do not talk on them, just use them to signal connection to TS1/TGID9:

    • Kansas City BYRG - 31201 (default)
    • DMR-MARC Midwest - 4640
    • DMR-MARC Southern Plains - 4645
    • DMR-MARC Worldwide - 4551
    • DMR-MARC North America - 4553
    • DMR-MARC Worldwide English - 4563
    ALL VOICE TRAFFIC WILL BE ON TS1/TGID9! Use the TGIDs only as in-band signaling to connect to a group. Only one Group may be active at a time, timeout is 30 minutes.

    K0USY Group Codeplugs

    Use these code plugs at your own peril! We've tried to ensure accuracy, but you get what you pay for. These only contain channels for the K0USY Group system and the Lawrence, KS area.


  • K0USY Group Repeaters

    K0USY Group Repeaters use "DMRlink" by K0USY Group, licensed under CC BY-SA 3.0 for linking, logging, audio tests and other functions.

    443.800+  DMR


    The first amateur DMR/MotoTRBO repeater in the state of Kansas.

    • Repeater: Motorola XPR8300
    • Duplexer: Wacom WP-678
    • Feedline: Cellwave LCF78-50JA
    • Antenna: Telewave ANT450D6-9
    • Tower: 270’ (325’ HAAT)
    • Site: 2mi W. of Lawrence on I70
    • Transmit Power: 25W

    444.000+  DMR


    Hosted by the FHSU Physics Dept./FHSUARC.

    • Repeater: Motorola XPR8400
    • Duplexer: Motorola T4085A
    • Feedline: Andrew LDF4-50A
    • Antenna: Comscope DB404
    • Building: 75’
    • Site: FHSU Campus, Hays
    • Transmit Power: 25W

    443.625+  DMR


    Hosted by Heartland Tower & WV0S

    • Repeater: Motorola XPR8300
    • Duplexer: RFS PD526
    • Feedline: Andrew Heliax
    • Antenna: Comscope DB420
    • Tower: 500'
    • Site: SW Topeka
    • Transmit Power: 25W

    443.750+  DMR


    Hosted by Kansas State Universtity

    • Repeater: Motorola XPR8400
    • Duplexer: RFS PD526
    • Feedline: LDF4-50A
    • Antenna: Comscope DB408
    • Building: 110'
    • Site: KSU Campus
    • Transmit Power: 25W

    444.750+ P25, D-Star, YSF, DMR via MMDVM

    Lawrence (Development)

    The Lawrence system is used primarily for development, and is coordinated, but may not be available at all times.

    • Repeater: Motorola R1225
    • Duplexer: Motorola T1504A
    • Feedline: LDF4-50A
    • Antenna: Diamond X50NA
    • Building: 25'
    • Site: West Lawrence
    • Transmit Power: 10W

    Note: Does NOT carry standard TGIDs like the other K0USY machines do. Timeslot 2 usually carries KS Statewide TGID 3120. On the air part-time

    444.825+ MMDVM


    DMR, P25, Fusion, D-Star

    • Repeater: Motorola R1225
    • Power Amplifier: TPL PA6-1AE-RXRF
    • Duplexer: Wacom Products WP678
    • Feedline: LDF4.5-50A
    • Antenna: Telewave ANT450D6-9
    • Tower: 100'
    • Site: 1Mile South of Lecompton
    • Transmit Power: 80W
  • Affiliated DMR Systems

    Other DMR systems directly connected and following the same TS/TGID settings as K0USY repeaters.


    Basehor, KS

    • 442.000+ N0RC, Basehor, KS


    Pittsburg, KS

    • 444.800+ K0PRO, Pittsburg, KS
  • DMRlink

    K0USY Group has produced the first complete, original implementation of Motorola’s IPSC repeater linking protocol. DMRlink is a complete, ready-to-use IPSC “protocol stack” that can be used for logging, voice recording and playback, network troubleshooting and IPSC network bridging.

    DMRlink is written in Python and has been tested on multiple Linux distributions, MacOS X and Microsoft Windows. It only requires one additional Python module (Twisted) to use. For more information, see the DMRlink github page at: https://github.com/n0mjs710/DMRlink.

  • Contact K0USY Group

    Questions, comments, want to join our system?