DMR Radio Site Information

Need a sample codeplug for your radio? RMHAM DMR TECH NET INFORMATION
Look here! CLICK HERE

Welcome to the Rocky Mountain Ham Radio network and the world of DMR.  The RMHAM Network incorporates multiple groupings of repeaters, called an “IP Site Connect” by network designers.   We have linked selective repeaters together to create local, regional and wide area coverage areas.

We use ONLY the Talk Groups listed below on the RMHAM network.  Brandmeister support is included on another page.  If you’re trying to “key up” a different talkgroup than ones listed, you will be disappointed and frustrated.

RMHAM Full-Time DMR Sites (Updated as of November 19, 2018)

Click on the city name to get a coverage plot for the site.

Name Site Sponsor Repeater Input Repeater Output Color Repeater Status IP Link Status
Akron Akron NEAHR 443.175 MHz 448.175 MHz 7 Operational Operational
Albuquerque Sandia Crest RMHAM – KA8JMW 447.900 MHz 442.900 MHz 7 Operational Operational
Fairplay Badger Mountain RMHAM – N0SZ 441.7625 MHz 446.7625 MHz 7 Operational   Operational
Boulder 1 Boulder South (RMHAM network) RMHAM – N0SZ 441.9875 MHz 446.9875 MHz 7 Operational   Operational
Boulder 2 BM Lee Hill (Brandmeister.network) RMHAM – N0SZ 440.0500 MHz 445.0500 MHz 1 Operational   Operational
Breckenridge/Summit Co Baldy RMHAM – N0SZ 440.0875 MHz 445.0875 MHz 7 Operational Operational
Canon City Fremont Peak RMHAM – K0JSC 441.7375 MHz 446.7375 MHz 7 Operational   Operational
Cheyenne WY RMHR Cheyenne WY RMHAM – K7PFJ 444.9375 MHz 449.9375 MHz 7 Operational   Operational
Colorado Springs VHF Almagre Mountain RMHAM – N0SZ 144.635 MHz 145.235 MHz 7 Operational Operational
Colorado Springs BM Cheyenne Mtn(Brandmeister.network) COLCON 440.0625 MHz 445.0625 MHz 1 Operational   Operational
Colorado Springs Almagre Mountain RMHAM – 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 RMHAM – WA2YZT 441.8375 MHz 446.8375 MHz 7 Operational   Operational
Denver – Central VHF Lookout Mountain VHF RMHAM – N0SZ 144.7700 MHz 145.3700 MHz 7 Operational   Operational
Denver – VHF Lower Squaw Mt RMHAM – N0SZ 144.575 MHz 145.175 MHz 7 Operational Operational
Douglas County CHANGED Devils Head Colo Emcomm 441.9250 MHz 446.9250 MHz 8 Operational   Operational
Durango/Missionary Missionary Ridge RMHAM – N5UBJ 440.1375 MHz 445.1375 MHz 7 Operational Operational
Durango/Mancos Caviness Mtn RMHAM – N5UBJ 441.7375 MHz 446.7375 MHz 6 Operational   Operational
Fort Collins Horsetooth Mountain RMHAM – 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
Genoa Genoa K0RTS 441.7375 MHz 446.7375 MHz  8 Operational Operational
Leadville Mosquito RMHAM – N0SZ 440.0500 MHz 445.0500 MHz 7 Operational Operational
Pueblo Pueblo RMHAM – K0JSC 441.9875 MHz 446.9875 MHz 6 Off Air Temporarily Operational
Rangely NEW! Cathedral Bluffs RMHAM – N0SZ 440.2625 MHz 445.2625 MHz 7 Operational Operational
Salida Methodist Mtn RMHAM – N0SZ 441.8125 MHz 446.8125 MHz 7 Operational Operational
Vail Dowd RMHAM – N0SZ 440.075 MHz 445.0750 MHz 7 Operational Operational
Westcreek/Douglas Co Westcreek RMHAM – N0SZ 441.8750 MHz 446.8750 MHz 6 Operational Operational

Rocky Mountain Ham Radio Talk Groups

We will be using the following talk groups on the RMHAM Network.  Note that we ONLY support these talkgroups on our statewide network.

Talk Group Description
700 Rocky Mountain Wide
705 Eastern (Configured for Data and Text Testing – Manual Station Identification is required.)
710 Denver Local (Lookout Mountain UHF repeater only)
711 Devilshead Local (Devilshead UHF TS2 repeater only)
718 Southeastern Region (future use – not yet implemented)
719 Southern Colorado Regional
720 Central Regional
721 Northern Colorado Regional
750 Boulder Analog Connection  (future use – not yet implemented)

Rocky Mountain Wide Network – Talk Group 700

The Rocky Mountain Wide network will provide extremely wide area coverage across much of Colorado.   No Data or Texting.  Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Akron Akron 443.1750 MHz 448.1750 MHz 7 1 Operational – Linked
Albuquerque Sandia Crest 447.9000 MHz 442.9000 MHz 7 1 Operational – Linked
Boulder Lee Hill (RMHAM network) 441.9875 MHz 446.9875 MHz 7 1 Operational – Linked
Breckenridge Baldy 440.0875 MHz 445.0875 MHz 7 1 Operational – Linked
Canon City Fremont Peak 441.7375 MHz 446.7375 MHz 7 1 Operational – Linked
ChyWY RMHR South Cheyenne 444.9375 MHz 449.9375 MHz 7 1 Operational – Linked
Colorado Springs VHF Almagre Mountain 144.6350 MHz 145.2350 MHz 7 1 Operational – Linked
Colorado Springs Almagre Mountain 441.9500 MHz 446.9500 MHz 7 1 Operational – Linked
Denver – VHF Squaw Mountain 144.5750 MHz 145.1750 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 144.7700 MHz 145.3700 MHz 7 1 Operational – Linked
Durango Mancos 441.7375 MHz 446.7375 MHz 6 1 Operational – Linked
Durango Missionary 440.1375 MHz 445.1375 MHz 7 1 Operational – Linked
Fairplay Badger Mountain 441.7625 MHz 446.7625 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
Genoa Genoa 441.7375 MHz 446.7375 MHz 8 1 Operational – Linked
Leadville Leadville 440.0500MHz 445.0500MHz 7 1 Operational – Linked
Pueblo Mt Pueblo 441.9875MHz 446.9875Mhz 6 1 Off Air Temporarily
Rangely Cathedral Bluffs 440.2625MHz 445.2625MHz 7 1 Operational – Linked
Salida Methodist Mtn 441.8125MHz 446.8125Mhz 7 1 Operational – Linked
Vail Dowd Junction 440.0750MHz 445.0750MHz 7 1 Operational – Linked
Westcreek NEW! Westcreek 441.8750MHz 446.8750Mhz 6 1 Operational – Linked

Rocky Mountain Wide coverage as of 6/28/17. This map includes proposed repeaters in Springfield, Eads, and Rangely which will be completed this year.

Eastern Colorado Regional Network (NEW!) – Talkgroup 705

This talkgroup has been set up to allow data.  We are allowing experimentation with data and texting on this talkgroup and repeaters only. The rest of the RMHAM network is strictly off limits for data and texting.  Because the DMR protocol does not contain a legal ID, you must manually identify your station every 10 minutes.

Name Site Sponsor RX Frequency Transmit Frequency Color Code Time Slot Repeater Status Link Status
Colorado Springs VHF Almagre Mountain RMHAM – N0SZ 144.6350 MHz 145.2350 MHz 7 2 Operational Operational
Golden VHF Lookout Mountain RMHAM – N0SZ 144.7700 MHz 145.3700 MHz 7 2 Operational Operational
Denver VHF Squaw Mountain RMHAM – N0SZ 144.5750 MHz 145.1750 MHz 7 2 Operational Operational

Central Colorado Regional Network (Formerly Denver) – Talk Group 720

A regional network supporting the Central Colorado area using Talk Group 720.   No Data or Texting. Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Breckenridge Baldy 440.0875 MHz 445.0875 MHz 7 2 Operational – Linked
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
Fairplay Badger Mountain 441.7625 MHz 446.7625 MHz 7 2 Operational – Linked
Genoa Genoa 441.7375 MHz 446.7375 MHz 8 2 Operational – Linked
Leadville Leadville 440.0500MHz 445.0500MHz 7 2 Operational – Linked
Rangely Cathedral Bluffs 440.2625MHz 445.2625MHz 7 2 Operational – Linked
Vail Vail 440.0750MHz 445.0750MHz 7 2 Operational – Linked
Westcreek/Doug. Co. Westcreek 441.8750 MHz 446.8750 MHz 6 2 Operational – Linked

Central Colorado Talkgroup dated 6-28-18 includes the Rangely repeater.

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

A regional network supporting Northern Colorado is established using Talk Group 721.  No Data or Texting.  Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Akron Akron 443.175 MHz 448.175 MHz 7 2 Operational – Linked
Boulder Lee Hill (RMHAM network) 441.9875 MHz 446.9875 MHz 7 2 Operational – Linked
ChyWy RMHR South Cheyenne 444.9375 MHz 449.9375 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

Northern network. Click on image for a larger map.

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

A regional network supporting Southern Colorado is being established using Talk Group 719.  No Data or Texting.  Repeaters supporting this talk group are:

Name Site Repeater Input Repeater Output Color Code Time Slot Status
Albuquerque Sandia Crest 447.9000 MHz 442.9000 MHz 7 2 Operational – Linked
Canon City Fremont Peak 441.7375 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 8 1 Operational – Linked – CC Changed to 8
Durango Mancos/Caviness 441.7375 MHz 446.7375 MHz 6 2 Operational – Linked
Durango Missionary 440.1375 MHz 445.1375 MHz 7 2 Operational – Linked
Pueblo Mt Pueblo 441.9875 MHz 446.9875 MHz 6 2 Off Air
Salida Methodist Mtn 441.8125 MHz 446.8125 MHz 7 2 Operational – Linked
.

Coverage for South talkgroup. Click on image for a larger version.

Local Only Talk Groups

A local talk group supporting Metro Denver is being established using Talk Group 710. No Data or Texting.

Name Site Repeater Input Repeater Output Color Code Time Slot Talkgroup Status
Denver – Central UHF Lookout Mountain 441.8375 MHz 446.8375 MHz 7 1 TG 710 Operational – Local mode
Devilshead Devilshead 441.9250 MHz 446.9250 MHz 8 2 TG711 Operational – Local 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.

Microwave Network

Rocky Mountain Ham Radio has built and operates a microwave network covering three states.  Our microwave link system covers throughout the Front Range from Wyoming to the Albuquerque and West to Vail to interconnect our radio sites on Amateur Radio frequencies and not be reliant on the commercial Internet as much as possible.  We’ve linked of our front range sites and are working to add others as quickly as the funds and time will allow. Rocky Mountain Ham Radio is an IRS 501(c)(3) Charitable Organization. Any donations you may care to make are fully tax deductible. We continue to expand and operate with your generous donations, to find out more click here.  If you would like to know more about the RMHAM microwave network, please click here.

If you have access to a radio site and internet access and would be willing to assist us in creating and managing 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!

DMR 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.

The FCC has allowed DMR on the amateur bands by allowing the emission type specified for DMR. 7K60FXE is now allowed in Part 97.

Please note:  Certain autonomous features (like GPS positions and data transmissions) are definitely not allowed since there’s no way to transmit a FCC Legal Identification every 10 minutes as required.  Encryption is never allowed in part 97 and must not be used on DMR or any other mode.

Excerpt from §97.119 Station identification:

(a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its transmitting channel at the end of each communication, and at least every 10 minutes during a communication, for the purpose of clearly making the source of the transmissions from the station known to those receiving the transmissions. No station may transmit unidentified communications or signals, or transmit as the station call sign, any call sign not authorized to the station.

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 perusal.