The Intermountain Intertie is a more-or-less informal collection of repeaters located in northern Utah/Southwestern Wyoming, many of which (but not all) are supported in part by the VHF Society.  This system is a hub-and-spoke system, with the Hidden Peak (the so-called "Snowbird") repeater 147.18 (+) repeater acting as one of the hubs.  If you are interested in seeing pictures of this repeater and reading more about it, go to the Hidden Peak Repeater page.  There is also a page for the 146.86 Medicine Butte repeater.  To look at a growing collection of pictures and info about other repeaters in the Intermountain Intertie, go to the Other Repeaters of the Intermountain Intertie page.

Configuration:  This system is usually linked to other repeaters/systems in the network that collectively cover much of central and southern Idaho, southwestern Wyoming, northern Utah, western and southwestern Utah, northwestern Arizona, and northeastern Nevada.

Etiquette:  Because of this extensive geographical coverage, please be courteous of others that may be wanting to use the system, frequently leaving time for breaks, and limiting QSOs to no more than 10 minutes during the heavier usage times - and it is uncouth to monopolize the system at any time.  Keep in mind that it takes a good portion of a second for all of the various links to 'turn around' so be sure to pause for several seconds when you allow for breaks, and key up for about a second before you say your first word.

A map of the Intermountain Intertie and its connected repeaters..
Click on the image for a larger version
This map shows those repeaters that are normally linked together.
  For additional link information, read the text.
 

The repeaters directly linked into this system:

• 147.180 +  Tone:  100.0 Hz.  Hidden Peak (East of Salt Lake City, Utah, at the top of the Snowbird Tram) - Coverage into Park City, Heber, Duchesne, Coalville, parts of northeastern Utah, southern slopes of the Uinta mountains, and parts of southwest Wyoming.  Note:  This repeater has spotty coverage in populated areas of the Salt Lake and Utah valleys.  This repeater is aligned with the Utah VHF Society and is the northern Utah hub of the Intertie.  If you are interested in seeing pictures of this this repeater and reading more about it, go to the Hidden Peak Repeater page.

• 147.120 +  Tone:  100.0 Hz.  Farnsworth Peak (southwest of Salt Lake City, Utah) - Coverage into the greater Wasatch Front area (i.e. Salt Lake, Provo, Ogden) as well as to the west along Interstate 80 into Wendover, Nevada.

• 145.490 -  Tone:  100.0 Hz  Promontory, located at the southern end of the Promontory mountain range about 25 miles west of downtown Ogden.  This repeater provides good coverage into Weber, Davis and Box Elder counties west of the Wasatch mountains.  Added to the Intertie on 29 September, 2018.  The subaudible tone on this repeater was recently changed to 100.0 Hz and was previously 123.0 Hz.

• 147.020 +  Tone:  100.0 Hz.  Bear Lake (Laketown) - Covers Bear Lake and its communities and portions of northeastern Utah, southeastern Idaho, and southwest Wyoming.

• 146.860  -  Tone:  100.0 Hz.  Medicine Butte, near Evanston, Wyoming - Covers southwest Wyoming, the northern slopes of the Uinta mountains, parts of northeastern Utah.  This repeater is aligned with the Utah VHF Society - go here to see the Medicine Butte Repeater Page.

• 449.650 -  Tone:  100.0 Hz.  Mt. Pisgah (south and west of Logan Utah) - Covers most of Cache Valley, although somewhat spotty on the west side of the valley around Wellsville.

• 146.840 - Tone:  100.0 Hz - Monroe Peak (central Utah, near Richfield, Monroe).  This repeater covers the I-70 and US-89 corridors around Richfield from Santaquin in the north and in the south to the Panguich area along US-89 and Parawan on I-15 and to the east into the Capitol Reef National Park area.  Link is currently down.

• 145.270  -  Tone:  100.0 Hz. Scott's Hill  (approx. 2 miles south of Brighton, Utah.)  Coverage is nearly identical to that of the Hidden Peak repeater, except that it has somewhat better coverage in Park City, Deer Valley, and in the Evanston/Kemmerer, Wyoming areas.

• 145.270  -  Tone:  103.5 Hz  Levan Peak (central Utah, near Levan.)  The primary coverage area of this repeater is along the Interstate 15 corridor from Santaquin to south of Fillmore.  It covers large portions Juab and Sanpete counties plus portions of Utah, Tooele, and Millard counties.

• 146.670 -  Tone:  100.0 Hz. Aspen Mtn (south of Rock Springs, Wyoming) - Currently off the air.  Covers the Green River/Rock Springs area and I-80 as far west as Little America and is linked to the system via the Medicine Butte repeater.  It is not known if/when this repeater will be again linked to the Intertie.

Some of the repeaters linked on this path are aligned with the Utah VHF Society, while others are voluntarily linked into the system by their respective organizations and owners.  Through the southern link, the following repeaters are usually connected:

• Southwest Utah:
• 146.940 -  Tone:  100.0 Hz.  Frisco Peak (Milford, Utah)   This repeater covers Delta, Cedar City, and other parts of southwestern Utah and eastern Nevada.  This repeater is aligned with the Utah VHF Society. Photographs of this and a few other sites may be found here.

• 146.800 -  Tone:  100.0 Hz.  Blowhard Peak ( Near Cedar Breaks National Monument) - Covers parts of southwestern Utah such as  Cedar City, Kanab, some of eastern and southeastern Nevada, and portions of northwestern Arizona.

• 146.820 -  Tone:  100.0 Hz.  St George (Utah Hill, west of St George) - Covers St. George, parts of southwestern Utah, southeastern Nevada, and northwestern Arizona.  This repeater is aligned with the Utah VHF Society.

• Southeast/Central Utah:
• 146.960 -  Tone:  100.0 Hz.  Navajo Mountain (east of Page, AZ) - Covers most of Lake Powell and large areas of southern Utah as well as Northern Arizona.  By local option, this repeater may not always be linked to the Intertie.

• 448.600 -  Tone:  100.0 Hz.  Navajo Mountain (east of Page, AZ) - Covers most of Lake Powell and large areas of southern Utah as well as Northern Arizona.  This is an alternate access to the Intertie and may be linked to it (and into Arizona) even if the co-sited 146.960 repeater is not.

• 146.880 -  Tone:  100.0 Hz.  Las Vegas (Mt. Potosi, SW of Las Vegas) - Covers Las Vegas, southeastern Nevada.  Note that this repeater may not be linked to the Intertie at all times as this capability is under control of the local operators.

• Northern Arizona:
• 147.300 + Tone:  100.0 Hz  Jacob Lake (south of Fredonia, AZ) - Covers portions of southern Utah and northwestern Arizona.

• 448.875 - Tone:   100.0 Hz  Mt. Eldon  (North of Flagstaff, AZ) - Operated by the Arizona Repeater Association, this repeater is usually linked to the intertie via the Navajo Mountain repeater and it is through it that the one may connect to more of the state of Arizona - See below.
  

• Other links into Arizona:  The Navajo Mountain site permits connectivity into Arizona via Mt. Eldon through the Rimlink System which covers about 50% of the state, including the Phoenix area. The interconnection of these to systems can be control by users on either side and users may interconnect the systems using the control code of "##360" and may drop the link using the control code of "##370".  The Arizona Repeater Association (ARA) encourages users to talk to their friends in Arizona, or to make some new Arizona friends.  For more information about the ARA, go to their web page:  http://w7ara.org

• Links into California:  There are UHF remote bases in California that control their systems to bring up the 146.880 Mt Potosi repeater. These California Remote bases are only controlled by them and 2 meter control back to California is not available to users of the Intermountain Intertie or the Mt Potosi Repeater group.

There is an additional link that connects to the north into a similar system operated in Idaho.  The link to the north into Idaho connects these repeaters:

Current status of the Intermountain Intertie: Promontory Point: The "5.49" repeater (145.490 output, negative split) on Promontory Peak was added to the Intertied at the end of September, 2018.  Its tone was changed to 100.0 Hz to match the more common tone on this system. Hidden Peak: The Hidden Peak (a.k.a. Snowbird) repeater is currently online. Links to the north: Coverage into Boise is again possible with the installation of the 145.130 repeater (formerly on 145.270) on Shafer Butte (NW of Boise) along with a 2 meter repeater at the Mountain Home "relay" site on 145.150:  Both use 100.0 Hz tones. Links to the south: As of March, 2012 is is reported that the Jacob Lake repeater (147.30+) is linked to the intertie.  Please note that according to the wishes of the local operators, it may not always be connected to the Intertie. As of September, 2013 there is capability to link the intertie into the Arizona Repeater Association (ARA) system.  For more information, visit their web site:  http://w7ara.org The link to the Monroe Peak repeater (central-south Utah) on 146.840 has failed as of December 2021 and the plan is to repair this link when possible, probably late spring 2022. Connectivity into Montana has changed.  Please refer to the Montana Repeater Link Association web site for further information.  IRLP Connectivity:  Direct connectivity to IRLP Node #3660 is currently NOT available.  Please read this for more information. Note:  While many of the participating systems are usually linked into the Intermountain intertie, they may be occasionally disconnected due to local requirements. For more information, send email to John, K7JL (at the link below) and he will forward your request to the appropriate party.

• Idaho:
  
• 146.850 -  Tone:  100.0 Hz.  Jumpoff Peak (west of Howe - Serves Idaho Falls.)  This is the Idaho hub for the intertie.  For pictures and other info. about this repeater, go here.

• 147.450 Simplex  remote, Carrier Squelch, near Malad Pass (west of Malad, Idaho.)  This remote formerly operated on 146.430, simplex.

• 145.270 -  Tone:  100.0 Hz.  Mount Harrison (southern Idaho)  For pictures and other info. about this repeater, go here.  Note that this repeater shares the same frequency as the Scott's Hill and Levan Peak repeaters - also linked via the intertie:  Please be aware of this when in an area where overlap between these systems is possible!

• 145.230 -  Tone:  100.0 Hz.  Sawtelle Peak (near West Yellowstone)  Go here for some pictures and more info about this repeater.

• 145.150 - Tone:  100.0 Hz.  Mountain Home   This site's primary purpose is to relay signals from Mount Harrison to Shafer Butte, but it also has a 2 meter repeater.  Because this repeater is not located on a mountain or tall butte, its coverage is somewhat limited as compared to other Intertie repeaters, but it can help bridge gaps in coverage as one travels along that portion of Interstate 84.

• 145.130 - Tone:  100.0 Hz.  Shafer Butte (northeast of Boise)  This site provides coverage in the vicinity of Boise, Idaho, providing much better coverage in that area than the old War Eagle site.  This repeater had been on 145.270 until September, 2018.

• Montana - Please note that links to the Intermountain Intertie and Montana are through Idaho (refer to map) so connectivity to Montana is dependent on the status of portions of the Idaho link.  See the sidebar for information about the Montana links.

There are other repeaters that may be linked to the above repeaters on a full or part-time basis.  Information on other repeaters will be posted if/when it becomes available.

A system this extensive cannot practically be maintained by just one person.  Suffice it to say, there are a few key people who do most of the work to keep this system operational.  To list those people here would be unfair, as it is a group effort and someone would undoubtedly be overlooked.

If you wish to help maintain this system, please join the Utah VHF Society (the address is given on the  home page) or the appropriate local repeater group (for those outside of Utah.) If you have any questions about this system, feel free to ask John Lloyd, K7JL.  Even if he isn't in charge of the repeater(s) that you are wondering about (i.e. the Southern Utah, Idaho or Montana repeaters), he can probably put you in touch with those who are
.

Current Intermountain Intertie projects:

The following is an incomplete list of projects that were completed  and those that are currently underway having to do with the maintenance and enhancement of the Intermountain Intertie.

• Promentory Point:  Work is being done to connect the 145.49 repeater to the Intertie.

• Levan Peak:  As of October 15, 2007, this repeater (145.27) - and its links - were completely operational.

• Farnsworth Peak:  There are currently issues with on-site desense on 2 meters affecting the 147.12 repeater.  Methods to remedy this issue are being investigated
  

• Medicine Butte (about 10 miles northeast of Evanston, Wyoming):   In mid 2011, this site seemed to go off the air, but upon investigation it was discovered that the small building to which the antenna mast was connected had blown over in the wind.  Upon righting the building and loading it with ballast (large rocks) the site returned to normal operation.
  

• Blowhard and Frisco Peaks:  In mid 2011, the UHF link radios at these sites were replaced, allowing better frequency re-use, improving link margins and solving some ongoing interference problems.

Questions, updates, or comments pertaining to this web page may be directed to:   uvhfs@utahvhfs.org

This page was last updated on 20190102

Return to the  Utah VHF Society homepage.