The K4USD Network
Administrator: John Burningham, W2XAB
w2xab@arrl.net

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

TG

TS

Comments

DMR-MARC WW

1

1

World Wide (DMR-MARC)

Local 2

2

2

Local Area Network (defined by the local repeaters)

DMR-MARC NA

3

1

North America (DMR-MARC)

Local 8

8

2

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

Local 9

9

2

Local Repeater Only

Brandmeister WW

91

1

World Wide (BM)

Brandmeister NA

93

1

North America (BM)

DMR+ USA

133

1

DMRPlus USA (Reflector 4639)

USA

1776

2

USA Talkgroup

Bridge

3100

2

“The Bridge” (DMRX & BM)

QuadNet

31012

2

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

TGIF

31665

2

tgif.network

 

 

 

 

DMR-MARC WW-German

10

1

WW German Language (DMR-MARC)

DMR-MARC WW-English

13

1

WW English Language (DMR-MARC)

DMR-MARC WW-Spanish

14

1

WW Spanish Language (DMR-MARC)

 

 

 

 

TAC-1

8951

2

Tactical Channel (DMRX)

TAC-310

310

2

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

TAC-311

311

2

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

TAC-312

312

2

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

TAC-313

313

2

Tactical Channel for QSOs (DMRX)

TAC-314

314

2

Tactical Channel for QSOs (DMRX)

TAC-315

315

2

Tactical Channel for QSOs (DMRX)

TAC-316

316

2

Tactical Channel for QSOs (DMRX)

TAC-317

317

2

Tactical Channel for QSOs (DMRX)

TAC-318

318

2

Tactical Channel for QSOs (DMRX)

TAC-319

319

2

Tactical Channel for QSOs (DMRX)

 

 

 

 

Midwest Region

3169

2

ND SD NE MN IA MO WI IL MI IN OH (DMR-MARC) (DMR+ 4640)

Northeast Region

3172

2

NY NJ VT MA CT NH RI ME (DMR-MARC) (DMR+ 4642)

Mid-Atlantic Region

3173

2

PA WV VA MD DE DC (DMR-MARC) (DMR+ 4643)

Southeast Region

3174

2

AR LA KY TN MS AL GA FL NC SC (DMR-MARC) (DMR+ 4644)

Southern Plains Region

3175

2

KS OK TX (DMR-MARC) (DMR+ 4645)

Southwest Region

3176

2

CA NV AZ NM HI (DMR-MARC) (DMR+ 4646)

Mountain Region

3177

2

AK WA OR ID MT WY UT CO (DMR-MARC) (DMR+ 4647)

 

 

 

 

JOTA

907

2

Boy Scout Jamboree-on-the-Air (BM)

JOTA TAC1

9071

2

Boy Scout Jamboree-on-the-Air TAC-1 (BM)

JOTA TAC2

9072

2

Boy Scout Jamboree-on-the-Air TAC-2 (BM)

 

 

 

 

California

3106

2

CA State TG

Colorado

3108

2

CO State TG (BM)

Delaware

3110

2

DE State TG (BM

District of Columbia

3111

2

DC State TG (BM)

Florida

3112

2

FL State TG

Georgia

3113

2

GA State TG (BM)

Hawaii

3115

2

HI State TG

Illinois

3117

2

IL State TG

Indiana

3118

2

IN State TG (BM)

Iowa

3119

2

IA State TG (BM)

Kentucky

3121

2

KY State TG (BM)

Maryland

3124

2

MD State TG

Massachusetts

3125

2

MA State TG

Michigan

3126

2

MI State TG

Minnesota

3127

2

MN State TG (BM)

Missouri

3129

2

MO State TG (BM)

Nebraska

3131

2

NE State TG (BM)

New Hampshire

3133

2

NH State TG

New Jersey

3134

2

NJ State TG (BM)

New York

3136

2

NY State TG

North Carolina

3137

2

NC State TG (BM) (available on request only)

Ohio

3139

2

OH State TG

Pennsylvania

3142

2

PA State TG

Rhode Island

3144

2

RI State TG (BM)

South Carolina

3145

2

SC State TG (BM)

Tennessee

3147

2

TN State TG (BM)

Texas

3148

2

TX State TG

Virginia

3151

2

VA State TG

Wisconsin

3155

2

WI State TG

 

 

 

 

Crossroads

8710

2

Indiana Statewide TG

First Coast

31121

2

NE Florida (BM)

Handi-Hams

31990

2

Handi-Hams (BM)  http://handiham.org

Net31001

31001

2

Scheduled Nets (BM)

Net31002

31002

2

Scheduled Nets (BM)

TN Ten

314710

2

Tennessee Ten (BM) (this is where W2XAB hangs out)

 

Some documents, files and links of interest to the Amateur community:

Amateur Radio Guide to Digital Mobile Radio: http://guide.k4usd.org

Technician Study Cards: http://technician.k4usd.org

Hamvention 2019 Presentation Files: http://www.k4usd.org/Hamvention2019.zip

K4USD Peer Watch: http://cbridge.k4usd.org:42420/PeerWatch

K4USD Call Watch : http://cbridge.k4usd.org:42420/CallWatch

Network Statistics: http://dmrx.net/dashboard/dmrx-dashboard-k4usd_network.html
(This only represents repeaters/users on our primary gateway/conference bridge)

 

Ham Friendly DMR Dealers

https://northgeorgiacommunications.com/ (Motorola Dealer K1DMR, new and used)

http://sandyscomm.com (Motorola Dealer)

http://connectsystems.com (DMR Dealer, very friendly technical support)

https://www.bridgecomsystems.com/ (DMR Dealer, very friendly technical support)

http://www.randl.com (Everything Ham Radio in Hamilton OH)

http://www.hamradio.com (Everything Ham Radio, largest dealer chain)

http://www.hamvention.org (The Mecca of Ham Radio, you will find everything you want there)

 

Revision:

09/16/2018         New Webpage released
09/22/2018         Added DMR Guide link
09/25/2018         Added TG3100, Added link to Technician Study Cards
10/05/2018         Revised web page, added some more dealers.
03/20/2019         Added QuadNet, TN TEN, HI. Handi-Hams, NA2, added TS for regionals
04/25/2019         Removed NA2, Add (BM) for state TGs that are direct connected
                                Added notice about termination of Text messaging.

05/06/2019         Updated DMR Guide file
05/13/2019         Added Hamvention 2019 Files, fixed tfig link
02/28/2020         Revised Minimal Net Watch to CallWatch for v9637 change
                                Removed discontinued TGs