K4USD Network Information

The K4USD Network is operated by the US Digital Amateur Repeater Club (K4USD) using multiple c‑Bridges™ to interconnect Motorola Mototrbo™ repeaters together and peering with other DMR bridge providers including DMR-MARC, DMRX, DMR+, Brandmeister, TGIF, QuadNET and 27 other regional DMR networks.

Our main c-Bridges™ are located in a multihomed data center near Dayton Ohio on dedicated servers. We currently support repeaters in 17 states and DC in a managed network; we accept all amateur Mototrbo™ repeaters (XPR8300, XPR8380, XPR8400, MTR3000, SLR1000, SLR5700, SLR8000) and do not charge any fees, although we do accept donations.

We offer a wide variety of general public Talk Groups (TGs) listed below. We also offer some local/regional TGs not listed below on request. If a repeater owner/operator wants a TG not listed, they should contact the administrator.

Repeater users should contact the repeater owner/operator for the TGs available on the repeater and time slot (TS) used for each TG. The TS listed below for the network wide TGs are the network default configuration which may vary for specific repeaters.

The K4USD Network will be terminating Text Messaging across our network effective May 1st, 2019 because of some users transmitting GPS data and Talker Alias. Users will still be able to use Text Messaging locally on a repeater.

Talk Group Name

Comments

DMR-MARC WW

World Wide (DMR-MARC)

Local 2

Local Area Network (defined by the local repeaters)

DMR-MARC NA

North America (DMR-MARC)

Local 8

Secondary Local Area Network (if available, also TS1 on some rpts)

Local 9

Local Repeater Only

Brandmeister WW

World Wide (BM)

Brandmeister NA

North America (BM)

DMR+ USA

133

DMRPlus USA (Reflector 4639)

USA

1776

USA Talkgroup

Bridge

3100

“The Bridge” (DMRX & BM)

QuadNet

31012

www.openquad.net (Cross connect to Fusion and D-Star)

TGIF

31665

tgif.network

DMR-MARC WW-German

WW German Language (DMR-MARC)

DMR-MARC WW-English

WW English Language (DMR-MARC)

DMR-MARC WW-Spanish

WW Spanish Language (DMR-MARC)

TAC-1

8951

Tactical Channel (DMRX)

TAC-310

310

Tactical Channel for QSOs (DMRX) (Linked to BM)

TAC-311

311

Tactical Channel for QSOs (DMRX) (Linked to BM)

TAC-312

312

Tactical Channel for QSOs (DMRX) (Linked to BM)

TAC-313

313