MotoTRBO Radio Site Information

Rocky Mountain Ham Radio TRBO/DMR Network

    Need a sample codeplugs?  Look here! 

Rocky Mountain Ham Radio and it’s affiliates have started the reconfiguration of the linked TRBO/DMR linked repeater system.

A quick history

The original system has local coverage on Slot 1, and Slot 2 covers wide area. All transmissions were made using ALLCALL rather than Talk Groups.   This network configuration was a good start but had some limitations.  We need to evolve the network design with activity increasing and new repeaters coming on-line.

Network Evolution

The RMHAM Network Evolution will incorporate multiple groupings of repeaters, called an “IP Site Connect” by network designers.   We are linking selective repeaters together to create local, regional and wide area coverage.   We will exclusively use the Talk Groups listed below.   ALLCALL will no longer be supported.

 

Network Evolution Sites

All repeater site work has been completed to include the new repeater programming and reliable IP backhaul connections.     All repeaters on the network are operating with the new Talk Group structure.   The ALLCALL function is no longer supported.

Network Evolution Sites (full time DMR / TRBO)

Name Site Sponsor Repeater Input Repeater Output Color Repeater Status IP Link Status
Boulder 1 Lee Hill (RMHAM network) RMHAM – N0SZ 441.9875 MHz 446.9875 MHz

7

Operational   Operational
Boulder 2 Lee Hill (DMR-MARC) RMHAM – N0SZ 440.0500 MHz 445.0500 MHz

1

Operational   Operational
Canon City Fremont Peak K0JSC 441.7325 MHz 446.7375 MHz

7

Operational   Operational
Cheyenne Cheyenne, WY WY7EOC 444.975 MHz 449.975 MHz

7

Operational   Operational
Colorado Springs Almagre Mountain K7PFJ 441.9500 MHz 446.9500 MHz

7

Operational   Operational
Denver – West UHF Squaw Mountain RMHAM – N0SZ 441.9375 MHz 446.9375 MHz

7

Operational   Operational
Denver – North UHF Thorodin Mountain RMHAM – N0SZ 441.8000 MHz 446.8000 MHz

7

Operational   Operational
Denver – Central UHF Lookout Mountain UHF WA2YZT 441.8375 MHz 446.8375 MHz

7

Operational
  Operational
Denver – Central VHF Lookout Mountain VHF RMHAM – N0SZ 144.7625 MHz 145.3625 MHz

7

Operational
  Operational
Douglas County Devils Head Colo Emcomm 441.9250 MHz 446.9250 MHz

7

Operational   Operational
Fort Collins Horsetooth Mountain K7PFJ 441.7500 MHz 446.7500 MHz

7

Operational   Operational
Fort Morgan Fort Morgan EOC (mixed mode) NEAHR 443.2000 MHz 448.2000 MHz

7

Operational   Operational
Pueblo Pueblo K0JSC 441.9875 MHz 446.9875 MHz 7 Operational   Operational

Network Evolution Sites  (Mixed Mode – switching between narrowband analog voice and DMR / TRBO)

Name Site Sponsor Repeater Input Repeater Output Color Repeater Status IP Link Status
 Denver  Lower Squaw Mt  RMHAM – N0SZ  144.575 MHz  145.175 MHz  1 Operational
 Operational

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Network Evolution Talk Groups

We will be using the following talk groups for Network Evolution

Rocky Mountain Ham Radio TRBO DMR Network Talk Groups:

Talk Group Description Screen Name

700

Colorado Wide Colo Wide

719

Southern Colorado Regional So CO

720

Denver Regional DEN CO

721

Northern Colorado Regional No CO

710

Denver Local (Lookout Mountain UHF repeater only) Lookout Local

750

Boulder Analog Connection  (future use – not yet implemented) 750 Conn

100

Cheyenne, Wyoming Local Talk Group Cheyenne Local

DMR-MARC Network Talk Groups:

Talk Group Description Screen Name

1

DMR-MARC Worldwide   (Lee Hill DMR-MARC repeater only) DMR-MARC WW

2

DMR-MARC Local  (Lee Hill DMR-MARC repeater only) DMR-MARC LCL

3

DMR-MARC North America  (Lee Hill DMR-MARC repeater only) DMR-MARC NA

Colorado Wide Area Network (Colo Wide) – Talk Group 700

The Colorado Wide network will provide extremely wide area coverage across much of Eastern Colorado.   Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Boulder Lee Hill (RMHAM network) 441.9875 MHz 446.9875 MHz

7

1

Operational – Linked
Canon City Fremont Peak 441.7325 MHz 446.7375 MHz

7

1

Operational – Linked
Colorado Springs Almagre Mountain 441.9500 MHz 446.9500 MHz

7

1

Operational – Linked
Denver – West UHF Squaw Mountain 441.9375 MHz 446.9375 MHz

7

1

Operational – Linked
Denver – North UHF Thorodin Mountain 441.8000 MHz 446.8000 MHz

7

1

Operational – Linked
Denver – Central VHF Lookout Mountain VHF 144.7625 MHz 145.3625 MHz

7

1

Operational – Linked
Fort Collins Horsetooth Mountain 441.7500 MHz 446.7500 MHz

7

1

Operational – Linked
Fort Morgan Fort Morgan EOC 443.2000 MHz 448.2000 MHz

7

1

Operational – Linked
Pueblo Mt Pueblo 441.9875 MHz 446.9875 MHz

7

1

Operational – Linked

Coverage of the Colorado Wide Area Network (CO Wide – Talk Group 700) network is shown below.  (click on the image for a larger map)

Screen Shot 2013-09-29 at 10.34.44 PM       Screen Shot 2013-09-29 at 10.34.54 PM

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Denver Colorado Regional Network (DEN CO) – Talk Group 720

A regional network supporting the Metro Denver area is being established using Talk Group 720.    Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Denver – West UHF Squaw Mountain 441.9375 MHz 446.9375 MHz

7

2

Operational – Linked
Denver – North UHF Thorodin Mountain 441.8000 MHz 446.8000 MHz

7

2

Operational – Linked
Denver – Central UHF Lookout Mountain UHF 441.8375 MHz 446.8375 MHz

7

2

Operational – Linked
Denver – Central VHF Lookout Mountain VHF 144.7625 MHz 145.3625 MHz

7

2

Operational – Linked
Douglas County Devils Head 441.9250 MHz 446.9250 MHz

7

2

Operational – Linked

Coverage of the Denver Regional Network (DEN CO – Talk Group 720) network is shown below.  (click on the image for a larger map)

Screen Shot 2013-09-30 at 2.23.23 PMScreen Shot 2013-09-29 at 9.25.18 PM

UHF Coverage (click on map for a larger version)        VHF Coverage (click on map for a larger version)

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Northern Colorado Regional Network (No CO) – Talk Group 721

A regional network supporting Northern Colorado is being established using Talk Group 721.    Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Boulder Lee Hill (RMHAM network) 441.9875 MHz 446.9875 MHz

7

2

Operational – Linked
Cheyenne Cheyenne 444.9750 MHz 449.9750 MHz

7

2

Operational – Linked
Fort Collins Horsetooth Mountain 441.7500 MHz 446.7500 MHz

7

2

Operational – Linked
Fort Morgan Fort Morgan EOC (mixed mode) 443.2000 MHz 448.2000 MHz

7

2

Operational – Linked

Coverage of the Northern Colorado Regional Network (No CO – Talk Group 721) network is shown below.  (click on the image for a larger map)

Screen Shot 2013-12-06 at 7.14.28 PM

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Southern Colorado Regional Network (So CO) – Talk Group 719

A regional network supporting Southern Colorado is being established using Talk Group 719.    Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Canon City Fremont Peak 441.7325 MHz 446.7375 MHz

7

2

Operational – Linked
Colorado Springs Almagre Mountain 441.9500 MHz 446.9500 MHz

7

2

Operational – Linked
Douglas County Devils Head 441.9250 MHz 446.9250 MHz

7

1

Operational – Linked
Pueblo Mt Pueblo 441.9875 MHz 446.9875 MHz

7

2

Operational – Linked

Coverage of the Southern Colorado Regional Network (So CO – Talk Group 719) network is shown below.  (click on the image for a larger map)

Screen Shot 2013-09-30 at 2.18.14 PM

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Lookout Local Talk Group (Lookout Local) – Talk Group 710

A local talk group supporting Metro Denver is being established using Talk Group 710.

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Denver – Central UHF Lookout Mountain 441.8375 MHz 446.8375 MHz

7

1

Operational – Local mode

Coverage of the Lookout Local (Talk Group 710) is shown below.   (Click on the map for a larger version)

Screen Shot 2013-09-29 at 9.25.18 PM

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Cheyenne, Wyoming Local Talk Group (Cheyenne Local) – Talk Group 100

A local talk group supporting Cheyenne is supported using Talk Group 100.   Note:  This talk group is only supported on the Cheyenne, WY repeater.

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Cheyenne Local Cheyenne, WY 444.975 MHz 449.975 MHz

7

1

Operational – Local Mode

Screen Shot 2014-01-26 at 5.06.32 PM

Denver Mixed Mode

We have installed a VHF repeater operating in mixed mode.    In this mode the repeater will determine the type of signal being sent to the repeater on the input frequency, and repeat that same signal on the repeater output.   Only one modulation type (digital or analog) can be utilized at the same time.   In this configuration, the repeater will occupy only 12.5 KHz of bandwidth while supporting either a single analog voice or two digital narrowband voice conversations.   This repeater can support the same coverage radius or distance as a traditional “wide band” analog repeater, and when in digital mode support twice the communication!   Welcome to the 21st century!!!

Name Site Sponsor Repeater Input Repeater Output Color Repeater Status IP Link Status
 Denver  Lower Squaw Mt  RMHAM – N0SZ  144.575 MHz  145.175 MHz  1  Operational  Operational

 Screen Shot 2013-12-08 at 4.45.28 PM

The two modes defined for this repeater are:

Analog -

  • 12.5 KHz, 12K0F3E modulation.  This is NARROWBAND ANALOG.  Please configure your radio appropriately!
  • DPL or DTCSS signalling 073 on both repeater input and repeater output.

Digital -

  • Two slot TDMA DMR / TRBO, 7K60FXE modulation
  • Color Code 1 (will be used while in Mixed Mode).
  • Time Slot 1 using Talk Group 711 (while in Mixed Mode).
  • Time Slot 2 using Talk Group 712 (while in Mixed Mode).

Note: This repeater is capable of being remotely re-configured to support IP Site Connect.  It can be placed on the RMHAM Evolution Network when requested by ARES.    When in IPSC mode, it will utilize Color Code 7 and use the Colorado Wide talk group 700 on time slot 1, and Denver Regional talk group 720 on Time Slot 2.   We will announce through this web site when the repeater is temporarily placed in IP Site Connect networked mode.

Analog Connect Talk Group – Talk Group 750

At some point in the future, we will enable a cross connect between the analog and digital TRBO repeaters located on Lee Hill.    Stay tuned.

 

 

Rocky Mountain Ham Radio’s DMR MARC Repeater:

Lee Hill/Boulder North Repeater:  Repeater TX 445.0500/Repeater RX 440.0500 MHz, Color Code 1, DMR MARC (Motorola Amateur Radio Club)

We have installed a repeater atop Lee Hill which is linked to the DMR-MARC (Digital Mobile Radio – Motorola Amateur Radio Club) system.   This is a system of approximately 130 TRBO repeaters worldwide.   You can find more info on DMR-MARC from their website:  http://www.dmr-marc.net
There are some differences between the existing RMHR system and DMR-MARC.
1) Users of this new Lee Hill repeater MUST obtain a radio identifier issued by DMR-MARC. You can request an ID here:  http://dmr-marc.net/request_subscriberID.html
2) Please note that DMR-MARC does NOT use “ALL CALL” on their system.  They utilize “TALK GROUPS” for Worldwide, North American and Local traffic.
3) They have an inverted structure for timeslots to RMHR.  On their system Timeslot 1 is for Wide Area Traffic, and Timeslot 2 is for Local Traffic.
          You should program your radio only to use the following talk groups:
On time slot #1:
      World Wide – Talk Group 1
U.S. / English Speaking Countries – Talk Group 3
On Time Slot #2:
Local – Talk Group 2
      Mountain Regional Talk Group – Talk Group 3177   (Please see map below for states covered by the 3177 Mountain Region network.)

Screen Shot 2013-12-08 at 4.33.02 PM

Please see this web page for programming your radio.  http://www.dmr-marc.net/subscriber-program.html   You can also send an e-mail to request additional information or help.
Estimated coverage of the Lee Hill DMR-MARC repeater as predicted by Radio Mobile.
Screen Shot 2013-02-22 at 11.11.46 PM

C-Bridge Installation

Our Rayfield Communications C-Bridge is now on-line allowing connections among the RMHR IP Site Connect networks repeaters, as well as the DMR-MARC network.  The bridge has been expanded to support patching between five IP Site Connect networks.

Operation and configuration of the cBridge is not important to the users of the system, some information is provided for our curious users.

(This section under construction.)

IP Site Connect Functional Name Repeaters TimeSlots linked
IPSC 1 Northern Colorado Regional
IPSC 2 Central Colorado Regional
IPSC 3 Southern Colorado Regional
IPSC 4 AUXCOMM Network Bridge
IPSC 5 DMR-MARC Network bridge

 

Microwave Network

We are currently building a microwave link system throughout the Front Range to interconnect our radio sites on Amateur Radio frequencies and not be reliant on the commercial Internet as much as possible.  We’ve linked most of our front range sites and are working to add others as quickly as the funds will allow.

If you have access to a site and internet access and would be willing to assist us in creating this network, please contact us and discuss what we can do to make this happen. We would like to create the network around the state, but we’re not building overlapping coverage.  If you have a site, and it makes sense for us to deploy there, we will see what we can do!

Motorola MotoTRBO Legality on the Ham Bands

Motorola filed and received approval on applications with the FCC to add emissions designators for use in many different radio services.  With the recent filings, the modes we use f0r amateur service are classified 7K60F7W for the repeater stations, mobiles & portables are classified as 7K60F1W which are all specifically allowed in Amateur Radio Service in Part 97.  These are now perfectly acceptable for use in amateur radio service.  With the receipt of these approvals, we believe that usage is not contrary to FCC Part 97 and allowed.

Please note:  Certain autonomous features (like GPS positions) are not allowed since there’s no way to transmit ID packets every 10 minutes as required.  Encryption is never allowed and SHOULD NOT be used.

FCC GRANTS WAIVER:  March 22, 2013 the FCC Granted the ARRL’s  petition for a waiver to the commissions rules regarding the use of single slot TDMA on the ham bands pending permanent rulemaking proceedings on the subject.  The full order is here for your porrusal.

 

Network Technical Log

12/29/2013: Trip by K7PFJ and K2AD to the Boulder site to upgrade the DMR repeater.  Removed existing XPR8300 repeater, and installed new Motorola MTR3000 repeater with backup batteries and charger.  Also converted all microwave IP link equipment to operate on battery power rather than 110 VAC.  

12/28/2013: Trip to Lookout Mountain by K2AD and WA2YZT and NV0N.  Fixed VHF repeater issue.  Added filters and pre-amp to UHF system.  Corrected IP microwave and router issue.  Also installed Colorado ARES W0CDS D-STAR repeater at site on a temporary basis.   System has temporary antennas and is “hitchhiking” on the RMHAM IP backbone for connectivity.  System will relocate to Devils Head at a date to be determined by ARES Leadership. 

12/7/13:  Router issue at Lookout Mountain.  Backhaul off-line.   Hope to have repaired shortly.

11/29/13:  Reports indicate the Denver VHF Lookout Mountain repeater on 145.3625 MHz has a transmitter issue.  We will investigate and repair as soon as possible.

11/7/13: W0VG tracked down the problem with the Almagre system and got it to sync back up with the help of Jeff, K0JSC adding an additional (temporary) repeater in Pueblo.  The systems are fully linked again and reporting working.

10/26/13: Trip to Thorodin by W0VG and K2AD.   Replaced old XPR8400 repeater with new MTR3000.   Re-configured receive antenna system to eliminate desense from Colorado Connection repeater.   Thorodin should be working at 100% now.  Have a hammy day.

10/25/13: IP backhaul failure to Almagre.  Repeater operational but in local mode only.  

10/18/13:  Trip to Almagre successful.  Backhaul restored and system on-line.  Thanks to W0VG and K0PWO.

10/15/13: Fixed packet loss issues on Pueblo causing severely choppy audio in and out.

10/14/13: Found wet cable at Fremont/Pueblo radio site which solved some of the packet loss and latency issues.

10/13/13: Fixed routing loop on Thorodin Mountain router causing Fort Morgan to be non-functional.  It’s now on the network and functioning.

10/11/13: Trip attempted to Almagre Mountain in Colo Spgs to repair internet issues.  Road access is impassible and system remains on Color Code 1 with no internet connectivity.  Attempts will be made before winter to access the site.

10/10/13: Experiencing choppy audio from packet loss between Denver and Canon City repeater.  Troubleshooting this internet connectivity issue.

10/7/13: Trip to Devils Head by W0VG.   Changed router settings, IP backhaul back on-line.

10/7/13:  Trip by W0VG to Thorodin.   Replaced router due to periodic lockups.

10/6/2013:  Repaired microwave link between Boulder site and “Firestone Hub” located at K2AD.   Restored backup internet based connectivity.  Installed MikroTIK router.   Corrected programming issue with repeater code plug.   Site is now the master repeater for the Northern IP Site Connect (consisting of the Boulder, Fort Collins and Fort Morgan repeaters).    Timeslot 1 on this network is a regional network (temporarily using ALLCALL), and Timeslot 2 is connected to the other repeaters on the network (temporarily using ALLCALL).    Look for the transition from Color Code 1 to Color Code 7 when we transition this network to talk groups late-Friday / early-Saturday as announced.   Thanks to W0VG for visiting the site, and to K2AD for supporting from the hub site.

10/5/2013: Devils Head router having issues creating a backhaul connectivity failure.  Repeater continues to operate in local mode on both TImeslot 1 and Timeslot 2.   We will try to have this fixed as soon as possible.

10/5/2013: Trip to Thorodin Mountain by W0VG and WA2YZT.   Installed 3GHz link between Squaw and Thorodin sites.

10/5/2013: Trip to Squaw Mountain by K2AD.   Installed battery backup on microwave radios.  Installed 3GHz link between Squaw and Thorodin sites.

9/28/13: Trip to Horsetooth Mountain with K7PFJ and K2AD.   Installed 3 GHz microwave equipment.  Repeater is now connected to the cBridge and other repeaters in the network.    Temporary connected Horsetooth Time Slot 2 to other repeaters using ALLCALL.

9/23/13:  Temporary link to support ARES activities (noted 9/18/13) has been removed.

9/21/13: Trip to Squaw Mountain with W0VG, WA2YZT, WN0EHE and K2AD.   Repaired microwave link from K2AD-Squaw (blown surge suppressor at Squaw site), installed MTR3000 repeater, and aligned all equipment.   Squaw is now at 100% capability and connected to “The Cluster” on both slot 1 and slot 2.   We should be able to re-configure the Denver regional repeaters soon.  We are working out the final details of the transition plan and hope to announce this information very soon.

9/18/13: Configured Canon City repeater to link on TS1 & TS2.

9/18/13:  NOTE!   In order to support ARES activities we have created a new mapping of the ALLCALL Talk Group.  The change from the 9/15 configuration is to add the Devils Head UHF system on TS2 to the new mapping.     The Lee Hill DMR-MARC Repeater, Time Slot 2 (normally “LOCAL” Talk group 2) is  mapped for ALLCALL to link this repeater to the Thorodin TS1 / Lookout UHF TS1 / Lookout VHF TS1 / Canon City UHF TS1 / Devils Head TS2 systems / Squaw UHF TS1.   Please give priority use of these repeaters and time slots to ARES Aux Comm communications.

9/18/13:  Devils Head repeater added to the “temporary cluster of repeaters.”    Sites now active on “the cluster” are:  Thorodin UHF (TS1 & TS2), Lookout UHF (TS1 only), Lookout VHF (TS1 & TS2), Devils Head UHF (TS1 & TS2), RMHR Trailer (TS1 & TS2), Canon City UHF (TS2 only).       The Boulder UHF, Almagre UHF, Fort Collins UHF sites continue to operate in a standalone mode (i.e. no links).

9/15/13:  NOTE!   In order to support ARES activities … The Lee Hill DMR-MARC Repeater, Time Slot 2 (normally “LOCAL” Talk group 2) has been mapped for ALLCALL and linked to Thorodin TS1 / Lookout UHF TS1 / Lookout VHF TS1.   Please limit usage of Lee Hill Time Slot 2 (DMR MARC LOCAL) to disaster response use only.

9/13/13:  Lee Hill DMR-MARC Repeater off-line due to site power failure.

9/8/13: Trip to Squaw Mountain by K2AD and WA1JHK.  We were working on repairing the 3GHz microwave radio … but then we heard the loudest BANG! we have ever heard.  Direct lightning strike to the building or tower.  Site AC power failure, as well as a building generator failure.   After power was restored, all repeaters are back on-air but the 3GHz microwave is down.  The Squaw TRBO repeater remains on-air but is in a “local only” mode.

9/8/13: Trip to Devils Head Mountain by W0VG, K0PWO and W0UAW.   Added router, installed microwave dish on tower to build link to Almagre.  Other general work on microwave system.

9/4/13:   The Canon City repeater is now linked to the Denver repeater.

9/4/13:  The Squaw Mountain IP data connection is experiencing difficulty and providing intermittent service.   Until it is repaired the repeater will operate as a “local repeater” with possible network operation when the link is working.   We hope to have it repaired shortly.