Welcome to the


Cactus Intertie System Home Page

The Cactus Intertie System is a private amateur radio system consisting of a large number of remotely controlled base stations, or REMOTE BASE for short, that are interconnected utilizing full duplex links. This linked system covers large portions of California, Arizona, New Mexico, Nevada, Utah, Colorado and Texas. Additional coverage is available in the Washington D.C. and the surrounding area of Maryland, Virginia, West Virginia, Pennsylvania and Delaware on a full time basis. Additional coverage is also available on a full time basis in the Atlanta, Georgia and the Portland, Oregon area. Click here to see the basic system map (revised 2/23/08) of the entire Cactus Intertie System.

Cactus Intertie, Inc., the founder of the Cactus Intertie System, along with its affiliate clubs (see the listing below) build, own, operate and maintain the remote bases. Most of these systems are accessed using locally coordinated channels in the 70 cm spectrum and are located on mountain peaks that provide wide area coverage.

The early development of and adherence to high technical standards in the RF equipment, audio tailoring and the system controller requirements, has made the Cactus Intertie System the most reliable and best sounding linked system in the nation.

If you would like to send an e-mail message to Cactus Intertie, Inc., please send it to:  cactus1 at (@) cactus-intertie (dot) org

We apologize for not providing a direct e-mail address but the web crawlers that distribute spam are unbearable

Please do not send messages about obtaining membership. All membership information can be obtained by following the link to the Cactus Intertie, Inc. Membership page.

Mark your calendars!! The 2015 Cactus Intertie System Meeting will be held on March 14, 2015 at the Holiday Inn and Suites in Tucson, AZ! Click Here for more info!

FCC RF EMF Guidelines

As of January 1, 1998, all Amateur Radio Stations are required to be compliant with the FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields as contained in OET Bulletin 65, Edition 97-01, dated August, 1997 and Supplement B, Edition 97-01, dated November 1997. The FCC, can at any time, require any amateur radio operator to show compliance to the guidelines. This applies to an amateur's home station, repeaters, remotes, auxiliary stations the amateur is trustee of, etc.

Visit the Technical Support web page (revised 4/30/01) for more detailed support information.


Technical Support


In keeping with the high technical standards for system controller requirements and audio tailoring, Cactus Intertie, Inc. is providing support for the Palomar Telecom Controller. While this support is primarily for the Cactus Intertie System, support is also available for any system, both amateur and commercial, that use the Palomar Telecom Controller. Cactus has developed design modifications to improve the performance of the controller. These modifications, as well as others, are available and documented in our Technical Application Notes. Cactus Intertie, Inc. is also in the process of designing and building new circuit cards for the controller. These new circuit cards are a different and upgraded design, while maintaining the pin for pin compatibility with both the existing hardware and software. Upgraded software, version 2.02, is available for Cactus Intertie System sites only. The software configurations are 721, 733a, 733b, 751a and 751b. Upgraded software for non-Cactus sites is not available at this time.

Visit the Technical Support web page (revised 7/2/06) for more detailed support information.


Membership Database



The Cactus Intertie System Membership Database is available to Cactus Intertie System members only. First time member users will be required to register. Your Cactus membership will be verified prior to being granting access to the database. Click on the icon to the right to go to the database.


Cactus Intertie System Message Reflector

The Cactus Intertie System maintains an e-mail reflector for use by the Cactus membership. The message reflector is a service donated and maintained by David, K7DSD. The reflector is available to Cactus Intertie System members only. Messages about system status as well as general information of interest to the Cactus Intertie System membership can be sent to the e-mail reflector by everyone on the distribution list.

To be added to the e-mail reflector distribution list, send an e-mail message to Cactuscactus1 at (@) cactus-intertie (dot) org

We apologize for not providing a direct e-mail address but the web crawlers that distribute spam are unbearable

Indicate that you want to be added to the Cactus e-mail reflector. Include your name, call, affiliate group and the e-mail address you would like to have the messages sent to. If your e-mail address changes, be sure to indicate both your old and new e-mail address. Your Cactus membership will be verified prior to being added to the distribution list.


Cactus Merchandise

Cactus Intertie, Inc. has merchandise containing the Cactus Intertie System logo available for purchase by Cactus Intertie System members. (revised 4/18/09)


Go to Cactus Merchandise to see the items available.


Cactus Silent Keys

The Cactus Intertie System would like to pay tribute to our Silent Key members.


Go to


The following Amateur Radio clubs are members of the Cactus Intertie System, along with links to their home page.



  Armadillo Intertie, Incorporated Home Page

  Big Sky Intertie Home Page

---  Cactus Intertie, Inc. Home Page

  Cholla Amateur Remote Base Association Home Page

  Colorado River Remote Base Association

  Crossbar Radio Network Home Page

  Deseret Amateur Remote System

Disaster Amateur Radio Network (DARN) Home Page

  Four Corners Amateur Radio Association

-  Grand Mesa Repeater Association Home Page

  Intertie, Incorporated Home Page

-  Jacks Peak Amateur Radio Association Home Page

  Mountaintop Amateur Remote Intertie El Paso Home Page

  Northern California Cactus Radio Association Home Page

  Oat Mountain Amateur Radio Society

  Oracle Remote Base Association

  Rabbit/Kelp Radio Network Home Page

  Saguaro Amateur Remote Base Association Home Page

  San Rafael Cactus Association Home Page

  South Mountain Users Group Home Page

  White Tank Mountain Remote Association Home Page

  Yuma Amateur Remote Base Association

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Revised: Nov 25, 2013 by KK6FUE
Copyright 2013 by Cactus Intertie, Inc. All Rights Reserved
The Cactus Intertie, Inc. logo, "Cactus Radio, Inc.", "Cactus Radio Club, Inc.", Cactus Intertie Incorporated and "Cactus Intertie System" are registered trademarks of Cactus Intertie, Inc.
No use of these symbols or phrases is allowed without the express written permission of Cactus Intertie, Inc.