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DCI Talkgroups

Available talkgroups for our network managers and their repeaters

Not all talkgroups need be programmed into subscriber radios nor do all talkgroups appear on every manager or repeater network.  The c-Bridge is able to control where and under what conditions that any talkgroup may appear on a repeater or it's manager on this c-Bridge.  The repeater owner or IPSC network manager makes the decisions on which talkgroups appear on the repeaters on their network.  It can be as few as 1 per timeslot (hardly worthwhile) or as many as all available (30 plus) if they wish to provide their user base with many options.  It is up to each admin as to how they want to do it as DCI does not mandate a one size fits all implementation of talkgroups.

A talkgroup can be assigned abilities by way of priority, dynamic routing or via schedule across the 50 network managers as well as it can be shared with other c-Bridges.  This enables better and more efficient use of the 2 timeslots to carry more traffic with fewer busies on both timeslots at any given time on a given repeater or network and more importantly, with less user frustration in a more complex environment.  Each repeater owner or IPSC network manager chooses which talkgroups to carry in addition to the "standard" 15 DCI talkgroups.

DCI Repeater List  -  Talkgroup Matrix  -  PTT  MCT's  -  Simplex Info  - DMRX


Talkgroup DCI / TS Detail / Use Notes
Alabama 3101 / 1 Alabama Statewide on TS-1 Source: DCI
AllStar Link 2B 3167 / 2 DMR to AllStar Link Node: 27575 on TS-2 Source: DCI/KC9MNL  /  Info
Arkansas 3105 / 2 Arkansas Statewide on TS-2 Source: DMRLinks / NSX
Audio Test 9999 / 2 Audio Testing, VU meter with Streaming (Chrome browser)  /  Source: NorCal
BC 3027 / 1 British Columbia Regional on TS-1 Source: BC-TRBO
Bridge 3100 / 2 c-Bridge & Brandmeister TG 3100 on TS-2 Source: DMRX  /  Multi-platform
Cactus 3185 / 1 Cactus Intertie System DMR on TS-1,  Available on Inland Repeater Group repeaters Source: WSDMR with permission
California 3106 / 1 California Statewide on TS-1 Source: DMRX
Canada 302 / 2 Canada-wide on TS-2 Source: CAN-TRBO
Colorado 3108 / 2 Colorado Statewide on TS-2 Source: NoCo  (unlinked currently)
Comm 1 3777215 / 1 Original Talkgroups from 2009 used by TRBO-6 after dropping All Call Source: DMRX  /  Available to all c-Bridge networks for wide area linking
Comm 2 3777216 / 2
DCI 1  (Primary)      3160 / 1 DCI Repeater Networks only on TS-1 DCI's main Talkgroup - Standby/Calling Only
DCI 2  (Secondary) 3162 / 2 DCI Repeater Networks only on TS-2 DCI Secondary Talkgroup - Short Time Use Only
EchoIRLP 8700 / 2 EchoLink and IRLP Portal on TS-2 Source: IN-1
Fusion 3182 / 2 No longer an active project to link, maybe ??? Source: DCI, WIRES-X info
Georgia 3113 / 1 Georgia Statewide on TS-1 Source: GeorgiaDMR
Illinois 3117 / 2 Illinois Statewide on TS-2 Source: DCI  (unknown if MARC has activity)
I-5 3168 / 1 Interstate-5; West coast states, TS-1 Source: DCI  /  PNW Network
Inland 465263 / 1 Inland Repeater Group only  
Iowa (bm) 3119 / 2 Iowa Statewide on TS-2 Source: DCI
Idaho 3116 / 1 Idaho Statewide on TS-1 Source: DCI
Local 1 3181 / 1

Local Repeater TS 1 / DCI c-Bridge Manager / Same IPSC Network Chatter / Mini Off timers

Local 2 3166 / 2

Local Repeater TS 2 / DCI c-Bridge Manager / Same IPSC Network Chatter / Mini Off timers

Massachusetts 3125 / 1 Mass Statewide on TS-1 Source: DMRX
Michigan 1 3126 / 1 Michigan Statewide on TS-1 Source: DMRX  (Not linked to the MI-5/CMEN)
Michigan 2 103126 / 2 Michigan Statewide on TS-2 Source: DCI  (Secondary Michigan talkgroup)
Mi-5 Statewide 1 51 / 1 Mi-5/CMEN Group Statewide on TS-1 Source: CMEN  (Available only in Michigan)
Mi-5 Statewide 2 52 / 2 Mi-5/CMEN Group Statewide on TS-2 Source: CMEN  (Available only in Michigan)
NoCo 3171 / 1 NoCo-wide on TS-1 Source: NoCo / W0DMR
North America 3163 / 2 North America on TS2 Source: MARC
New Jersey/Tri 2 4639 / 2 New Jersey/Tri-state on TS2 Source:
Ohio 3139 / 1 Ohio Statewide on TS-1 Source: CODIG 
Oregon 3141 / 1 Oregon Statewide on TS-1 Source: DCI  /  PNW Network
Ontario 3023 / 2 Ontario Canada Regional on TS-2 Source: CAN-TRBO
PA-525 3185 / 2 52.525 FM Remote Base Multi county coverage around Allentown PA
PA-ACS 31420 / 2 Pennsylvania ACS Group Source: PADMR
PA-TAC 31421 / 2 Pennsylvania Tac Source: PADMR
Parrot 9998 / 1 Parrot Echo Test Server on TS-1 Source: DMRX
Penn 3142 / 1 Pennsylvania Statewide TS-1 Source: DCI
PNW 1 3187 / 1 Pacific Northwest Main on TS-1 All PNW Repeaters Main - Calling/Standby Only
PNW 2 103187 / 2 Pacific Northwest General Use on TS-2 General Chatter, other networks may join
Regionals 31xx / 2 MARC Regionals, All six on TS2 Source: MARC
SoCal 31066 / 2 Inland Repeater Group only Source: DCI
SNARS 31328 / 2 SNARS main TG on TS2 Source: SNARS
South Carolina 3145 / 2 South Carolina Statewide TS-2 Source: DCI
Southwest-1 31761 / 2 Inland Repeater Group only Source: DCI
TAC 1, 2, 3 (on TS2) 8951,2,3 / 2 Worldwide PTT, Any Language, no Brandmeister connection Source: DMRX  /  Destination talkgroup
TAC 310, 311, 312 310-312 / 2 TAC 310 311 312 are fully PTT on TS-2, English (Info) Source: DMRX  /  Destination talkgroup
TAC 319 319 / 2 TAC 319 is fully PTT on TS-2, Not patched to BM  English (Info) Source: DMRX  /  Destination talkgroup
TAC English 123 / 2 TAC E is fully PTT on TS-2, Worldwide English Source: MARC /  For TAC 310 compliance
Texas 3148 / 2 Texas Statewide TS-2 Source: LonestarNet
Tennessee 3147 / 2 Tennessee Statewide TS-2 Source: DMRX
Utah 3149 / 2 Utah Statewide TS-2 Source: TBA; not-sourced currently
USA 1776 / 2 USA based, Full or Part Time on TS-2 Available Worldwide / Source: MIT
Wash 1 3153 / 1 WA Statewide on TS-1; patched to BM (info) Source: DMRX  PNW Network
Wash 2 103153 / 2 Washington Statewide on TS-2 Source: DCI  /  PNW Network
Worldwide 3161 / 2 Worldwide (short use) Source: MARC
Worldwide English 13 / 2 Worldwide English Source: MARC

Source c-Bridge is DCI unless listed differently; c-Bridge admins, check with that organization if you wish to carry their talkgroup

Talkgroups may be actively linked full time or controlled by PTT on a repeater by repeater basis.  Default may be unlinked but a Ker-Chunk will link the talkgroup to other networks and/or c-Bridges.  A typical 15 min timeout timer will run which is reset by additional ker-chunks or continued use of the TG.  Check with your local repeater owner or admin for information.   Read more or much more


AllStar Link 2
TG ID # 31
Talkgroup Portal to AllStar Link node 27575, sponsored by Steve, KC9MNL  (Node Status), access to Echolink, D-STAR, SIP and IRLP, more details pending.
Audio Test 2
TG ID # 9999
NorCal's VU Meter talkgroup for testing user audio.  Must use the Chrome browser for VU.  No longer supported.
"the Bridge" 2
TG ID # 3100
The original wide-area intertie for c-Bridge connected repeaters on timeslot 2 with connections to Brandmeister 3102.
BC 1
TG ID # 3027
British Columbia Canada regional talkgroup on timeslot 1.  (More info: BCFMCA)
Cactus 1
TG ID # 3185
Available on WSDMR authorized repeaters only.
Canada 2
TG ID # 302
Canada's country-wide talkgroup on timeslot 2.
Comm 1 & 2
TG ID # 3777215 &16
Open wide-area DMRX talkgroups on timeslots 1 and 2 (available to any c-Bridge)  These are the original TRBO-6 talkgroups from 2009 prior to the c-Bridge and after moving away from "All Call".

DCI 1 & 2
TG ID # 3160 & 3162

General conversations are not permitted here

DCI networks full time and primary or master talkgroups on timeslot 1 & 2 respectively.  These are calling or priority contact talkgroups.  DCI 1 & DCI 2 light up ALL DCI repeaters.  Move off of DCI 1 or DCI 2 once contact it made.  Consider using Local or TAC's unless your traffic is of likely interest to every repeater and all their users.  Just because DCI 1 & DCI 2 are quiet doesn't mean that they should be used.  If you must use DCI, use DCI 2 before DCI 1 for conversations lasting longer than a few minutes of initial contact.

EchoIRLP 2
TG ID # 8700
EchoLink and IRLP Portal provided by NF9K from the IN-1 c-Bridge.
Fusion 2
TG ID # 3182
Portal to Yaesu WIRES-X Node 11068 and room: DCI-TRBO 21068; the gateway project is no longer in development.  The talkgroup connections will remain active as an alternative talkgroup.  See: fusion for information on Yaesu System Fusion, might go over to openSpot...
Hawaii 1 on TS-2
TG ID # 3115
Available only with permission of Hawaii TrboThis TG is called Hawaii 1 in Hawaii but carried by DCI on timeslot 2
Interstate-5 (1)
TG ID # 3168
Regional talkgroup for I-5 area coverage in CA, OR & WA on TS-1 (more info)
iCall 2
TG ID # 44411 on TS2
International, any language, hailing only talkgroup.  Upon contact, hams move to an available TAC for their conversation.  More Info  (was 8952)
Hawaii 1 on TS-2
TG ID # 3115
Available only with permission of Hawaii TrboThis TG is called Hawaii 1 in Hawaii but carried by DCI on timeslot 2
Inland 1
TG ID # 465263
Available only with permission of the Inland Repeater Group
NoCo 1
TG ID # 3171
NoCo's system wide talkgroup available on request for DCI repeaters.
North America 2
TG ID # 3163
MARC talkgroup for their North America and South Pacific traffic. (English speaking talkgroup)  (Use TG ID 3163 on timeslot 2 on DCI, not TG 3 on timeslot 1)
Ontario 2
TG ID # 3023
Ontario Province, Canadian regional talkgroup on timeslot 2.
Parrot 1
TG ID # 9998
PNW DMR's Echo server for audio testing, as well as for end-to-end network connectivity confirmation.
PA-525 2
TG ID # 3185
52.525 Mhz Remote Base in Allentown PA; multi county ground wave coverage.
PNW 1 & 2
TG ID # 3185 & 103185
Pacific Northwest Repeater Group, full time;  PNW 1 is main TG but standby for priority time slot 1, PNW 2 is a secondary stand-by non-QSO talkgroup.
Regionals (TS2)* The MARC regional talkgroups are available but with with inter-regional operational restrictions imposed by MARC. 
TG ID # 6968
SNARS is the main TG for the Sierra Nevada Amateur Radio Society, provided by: Mountain West
TG ID # 31761 on TS2
Available only with permission of the Inland Repeater Group
Statewide TG's
TG ID's 3101-3156
4 digit statewide talkgroup plan  (TS2 may use 10 suffix; added as they are implemented in the DCI c-Bridge as repeaters in those states join the DCI networks).
TAC 1-2
TAC 2-2
TAC 3-2
TG ID # 8951 on TS2
TAC 1, 2 and 3... are talkgroups distributed worldwide by DMRX and all languages are welcome.  TAC 1 enables repeater to repeater conversations using the the minimum number of repeaters necessary around the world and is activated by PTT from both ends. Now permanently disconnected from Brandmeister 3102 due to their policy change.
TAC 310/311/312
TG ID # 310/311 on TS2
TAC 310, TAC 311 & TAC 312...  are North America English language talkgroups distributed by DMRX. Their purposes are to enable repeater to repeater conversations using the the minimum number of repeaters possible.  Typically used as destination talkgroups after hailing elsewhere and activated by PTT from both ends.  Calling QRZ here will likely be disappointing.
TAC 319
TG ID # 319 on TS2
TAC 319...  is a North America only English language talkgroup distributed by DMRX. It is the same as the TAC 310-312 except that there is no Brandmeister cross-patch in place.
TAC English 2
TG ID # 123 on TS2
TAC English is a worldwide English language talkgroup distributed by DMRX. This talkgroup is the expansion of the original TAC 310 concept but widened out from North America coverage only and is compliant with the GSM/DMR talkgroup scheme.  Its purpose is also to enable repeater to repeater conversations using the the minimum number of repeaters possibly.  Typically used as a destination talkgroup after hailing elsewhere and activated by PTT from both ends.
TG ID # 1776 on TS2
MIT's USA talkgroup for use worldwide coverage; more info.
Worldwide 2
TG ID # 3161
MARC talkgroup for worldwide coverage  (Use TG ID 3161 on timeslot 2 on DCI, not TG 1 on timeslot 1)
Worldwide English 2
TG ID # 13
MARC talkgroup for worldwide coverage. (English speaking talkgroup)
TG On & TG Off A series of Control only Talkgroups used to enable/disable certain talkgroups or Conference Connections from the rest of the c-Bridge; essentially changes a voice talkgroup to "Local Only" or "Linked".  The default state will reset after a short idle period.  These are not available normally; Inquire if you wish more info.
DCI Open IPSC An open IPSC manager to our network for your repeater with the following standard talkgroups:  Bridge 2, Comm 1, DCI 1, DCI 2, North America, TAC 310, USA and Worldwide (English).  Inquire for more info on connecting your repeater temporarily or permanently.


National Digital Simplex Frequencies  (12.5Khz or less)

UHF 1) 441.0000   2) 446.5000   3) 446.0750   4-US & Europe 433.450
VHF 1) 145.7900   2) 145.5100
TG ID: 99  /  CC 1  /  TS 1  /  "Admit Criteria": Always  /  "In Call Criteria": TXI or Always
It is recommended that you contact the local area coordinating councils when using our suggested simplex frequencies to insure an interference free session.


Push To Talk Talkgroup Control: How to make PTT work for you;  PTT turns on links and it turns off links.  Typically (most TG's), when you ker-chunk a TG, it will link that TG (if not already linked) but it also will unlink certain other busy TG's that are also on the same timeslot.  The timers are typically 15 minutes on for the actual TG and 3 minute hold-off for the other TG's that might otherwise go busy from outside your IPSC network.  As long as someone on the same IPSC network (that your repeater is on) keys up at least once within three minutes (normal back and forth conversation does that), most of other TG's are kept unlinked and will not capture the timeslot.  To capture a timeslot that has active IPSC network traffic, you must key up between the ongoing transmission cycles of an active conversation to turn on your talkgroup and turn off the active networked talkgroup. If you need a more detailed explanation of how PTT works, go to:  PTT in detail.

Additional talkgroup controls are provided by the "Locals" and  Master Control talkgroups.  New managers will be implementing this method to enable the local repeater user to turn-off all networked talkgroups or turn some or all back on after finishing a conversation.  This means that the state of all networked talkgroups can be turned off to provide a user exclusive use of a specific talkgroup on that timeslot and when done, turn all the talkgroups back on.  MCT's work in conjunction with the full time and PTT talkgroups but without the necessity of programming hundreds of hold-off timers.  More on MCT's

Your local repeater should have its "Group Call Hang Timer" set for 1 second (not the 3 second default) for PTT talkgroup control to work best.  For example, the "Bridge 2" talkgroup is active but you wish to use "Local 2"; wait for the transmission to stop, wait for repeater's 1 second "Group Call Hang Timer" to toll, key up on "Local 2", if you get talk permit tones, you have un-linked "Bridge 2" (as well as several other networked talkgroups that are also on the same timeslot 2).  The 2 minute activity window renews with every PTT on "Local 2" and will continue to keep all talkgroups on timeslot 2, off so that you will not loose the use of Local 2.  If your repeater owner has not changed the "Group Call Activity Hang Timer" to 1 second, then it is very hard to break in between and you may need to wait for the conversation to clear or a long pause.

It is important to remember that PTT only controls other talkgroups and links outside of your local repeater or IPSC network.  In other words, PTT has no direct affect on what is transmitted over the local repeater/IPSC network.  PTT controls what goes out from your local repeater/IPSC network or what comes into your local repeater/IPSC network but not what is heard by or from a local user on that local repeater/IPSC network.

c-BRIDGE: c-Bridge to c-Bridge "Conference Connections" are like "trunk lines" and do not have the busy issue (Bonks) like talkgroups have on an IPSC network.  Talkgroups can be mapped on both sides of 2 c-Bridges so that neither end gets inappropriate busies from traffic active at the other end.  DCI uses a series of Super Groups coding that "prioritizes" talkgroup traffic as well as a scheduler, timers and dynamic switching to manage those links and their priorities with respect to other talkgroups operating on the same timeslot.

RECEIVE ONLY TALKGROUPS: DCI is now able to provide talkgroups that are receive only.  This can be useful for certain talkgroups that are restricted in some fashion, the Regionals for example.  Other talkgroups may not wish the national activity but don't mind if you listen in, so their distribution is now possible.  These talkgroups may be programmed as full-time or part-time receive only.

NETS: Some of the weekly DMR nets are carried on most DCI network managers and are activated by a scheduler a few minutes prior to the start of the net.  Currently we carry the DMR Worldwide Net and the DMR Tech Net on most of our networks.  NOTE:  Some talkgroups are scheduled to unlink so that the nets will not be interrupted for those who may be only listening to a net.

TALKGROUP PLETHORA: While using multiple talkgroups for a various purposes may be handy, the downside in having "too many" talkgroups is that there is likelihood of congestion or busies on the two timeslots.  So a balance of traffic between the 2 timeslots is wise as well as not carrying all talkgroups on all networks managed by any single c-Bridge.  As more c-Bridges come online, the various talkgroups increase the efficiency of use on the two timeslots across the US and worldwide.  The statewide and regional  talkgroups listed above may or may not appear at any given time and are shown only to illustrate possible use within the DCI c-Bridge.  If in doubt on any talkgroup's status, kerchunk the talkgroup as many TG's are made active or linked via a short TX on that talkgroup and may automatically un-link after a period of inactivity.  The table above lists the various talkgroups that may be available.

ALL CALL:  DCI does not support the routine use of the All Call talkgroup and requests that it not be used on our networks.  However, for high priority or Emergency needs, then you may of course use All Call.  The DCI c-Bridge is programmed to support All Call in two ways:  1) If you call out on Call, your transmissions will be heard on all repeaters on your network on your timeslot.  2) DCI Admins and select c-Bridge control Op networks will also hear your transmissions no matter which slot you use.  3)  DCI control op Networks are able to transmit out on All Call onto both timeslots and ALL networks simultaneously.  5)  DCI Control Ops will not use All Call except in cases of Priority or Emergency situations.  More Info on All Call or if you are a c-Bridge administrator and you wish to explore a US emergency Talkgroup, please Email us.

Each c-Bridge can use their own talkgroup names and talkgroup ID numbers but the more commonality in naming and ID numbering, the easier for ALL users on all the networks to understand where the traffic comes from, is targeted or may be connected.  Using the same talkgroup names across the networks (where possible) should help to reduce the confusion the the end users of all c-Bridge networks. 

DCI uses the convention of talkgroup labels including their timeslot position, such as Comm 1 and Comm 2 for example.  This indicates two different talkgroups on two different timeslots, 1 and 2 respectively.  DCI uses the convention that timeslot 1 is of higher priority than timeslot 2 generally, so many more talkgroups appear on timeslot 2.  This enables timeslot 1 to be "more" free of traffic coming in from outside the DCI c-Bridge.  So knowing which timeslot is used for each talkgroup is much simplified by it's label showing the timeslot number.


Revised: 01/18/2019 23:06