Transcon Digital Tests and Cascadia Rising

As appeared in the June NTS Letter:

By, James Wades, WB8SIW
Emergency Management Director, Radio Relay International

Don Rolph, AB1PH, and his NTS Digital team have been experimenting with various digital methods to identify best practices for reliable transcontinental messaging within a time constraint of 30 minutes or less. There is precedent for these activities in the Cascadia Rising disaster exercise simulating a major earthquake and tsunami affecting the Pacific Northwest, which took place in 2016.

During Cascadia Rising, FEMA asked NTS and RRI volunteers to test connectivity between a simulated disaster area in the Pacific Northwest and the National Response Coordination Center (NRCC) in Washington, DC. The goal was to test the ability of these networks to provide timely and accurate emergency messaging under a wide range of propagation conditions using various radio-only modes and methods.

Before amateur radio resources could be tested, it was necessary to develop a cohesive plan for an efficient response to a regional or national disaster. While some broad guidelines had been promulgated in ARRL publications over the years, an actual disaster operations plan had never been developed. Therefore, a prototype “National Response Plan” was designed as a desideratum against which performance could be measured. This plan defined two operational frameworks for NTS assets, one being the familiar “routine” configuration of daily layered nets, and the other of which was a specialized “emergency” configuration designed to streamline the messaging process, while building in the network and administrative tools required to support critical served agency and NIMS functions.

Beginning in 2015, an engineering-grade exercise framework and evaluation process was designed, ensuring an objective and analytical analysis of network performance. Message traffic consisting of five-letter cipher group circuit test messages would be originated from Alaska, Idaho, Northern California, Oregon, and Washington state. This method could then be utilized to measure accuracy across tens of thousands of data points. Elapsed time from when a message was tendered for origination to when a message appeared in the data stream at the NRCC was also evaluated. A statistical process was then used to categorize problematic messages according to non-fatal and fatal errors. The exercise was also conducted in three phases to simulate variable high frequency propagation conditions (e.g. morning, afternoon, and night).

The objective evaluation results were quite positive, with some valuable insights gained:

  • Despite making voice circuits available, RF propagation conditions were such that HF SSB proved insufficient for the task. In all cases, participants chose not to use this method.
  • CW circuits performed very well, achieving an accuracy score of 99.998 percent against over 13,000 data points.
  • The Digital Traffic Network achieved an equivalent accuracy score of 99.997 percent against slightly over 10,000 data points.
  • The Alaska ARES intrastate digital network achieved an accuracy score of 100 percent. These messages were then transferred to a point-to-point CW circuit between Alaska and the Pacific Northwest for transcon relay to the NRCC.
  • A superior message propagation time was achieved by the CW nets, with an average time elapsed of 11 minutes, providing better message propagation times than digital methods.

The prototype plan developed for Cascadia Rising has since evolved into the current Radio Relay International National Response Plan (NRP), which is now available in both English and Spanish. This plan has since been subjected to a variety of both internal and external exercises conducted with various agencies. In every case, the NRP has worked very well with minor adjustments being made after each exercise to always seek improvement. Ultimately, some useful conclusions from Cascadia Rising include:

  • There is absolutely no substitute for traffic handling experience. Many of the key operators staffing the nets had years of traffic handling experience. Some also had extensive maritime or military experience. This lesson was repeated during Hurricane Maria a few years ago when the difference between experienced traffic handlers and spontaneous volunteers was extremely evident on nets.
  • EmComm volunteers should not engage in “mode parochialism.” Some saw CW as obsolete, but despite having multiple methods available, CW came to the rescue, offering not just equivalent accuracy to digital methods, but better message propagation times between the simulated disaster area and the NRCC.
  • When conducting an emergency exercise, the evaluation process must measure more than the ability to establish connectivity. It must measure the ability of the network and personnel to accurately and efficiently convey information, track messages, manage replies, interface with message routers, and maintain an organized file of messages originated or relayed, all while retaining a concise radio log.

If there is one “big” lesson from Cascadia Rising and subsequent disaster operations, it is the importance of being part of an organized system. The “prepper mentality” that one will turn on his radio and save the day may work in an isolated emergency, but when it comes to organized disaster response, it is merely a fantasy.

The ongoing efforts of Don Rolph and his NTS Digital team add another layer of capabilities that can enhance the diversity and reliability of a survivable network. There remains a place for skilled radio operators capable of improvising solutions and providing the professional grade of service to their community that makes a difference in time of emergency. The skills learned on NTS nets and the basic methods of managing record message traffic are the foundation of effective communications. This is why traffic nets are once again attracting those who seek a quality, professionally run organization.

New Recognition Award Certificates

The following article appears in the June issue of the NTS Letter: 

First Radiogram Certificate

In a previous issue of The NTS Letter, we reported on the efforts of one of the NTS committee working groups to create a series of certificates (such as the one shown below) to recognize and show appreciation to traffic handlers for their time, effort, and dedication in support of the National Traffic System®. These new ARRL-authorized certificates will generally be awarded and available for download by Section leadership within each Section. A new NTS participant who has been undergoing training can receive a certificate from a net manager for successfully sending his/her first properly-formatted radiogram via a National Traffic System affiliated net. To encourage greater cooperation between NTS and the Amateur Radio Emergency Service (ARES®), an award can be given by a Section Manager, in cooperation with the Section Traffic Manager and Section Emergency Coordinator, to an NTS operator for handling message traffic in association with official ARES activity during or in preparation for emergency events. There is a special certificate award for an Official Relay Station of the Year, as determined by a Section Traffic Manager in any Section, for an ORS in his/her Section who has gone above and beyond with respect to traffic handling in a way that furthers the National Traffic System mission, objectives and participation. Also included are certificates for participation in local and Section nets, for serving as a net control or alternate net control station as well as Net Manager and Section Traffic Manager. Certificates for participation in region and area nets and the Transcontinental Corps (TCC) will be made available at a later date. For a little fun for those who enjoy a challenge, a certificate will be awarded to those who personally receive a radiogram from all 50 US states. Two additional awards that will be offered by ARRL Field Services will include the Brass Pounders League (BPL) medallion, which has been available for many years, and a new Challenge Coin.

Details on all awards can be found at https://nts2.arrl.org/recognition-awards .

 

Field Day 2025 and the NTS Traffic Handler

The following article was included in the May NTS Letter:

ARRL Field Day LogoField Day is said to be the highlight of the year for amateur radio operators. It is held annually on the fourth weekend in June, which this year falls on June 28 and 29. There is something for almost any amateur radio operator. It is perhaps foremost an exercise in emergency preparedness, one of the primary reasons for the existence of the Amateur Radio Service. It takes great skill to be able, within a short period of time, to set up multiple stations capable of various modes, and operate without public infrastructure. While not an official contest, it offers the contester the thrill of making multiple contacts, scoring many points for their club or group. For those who enjoy outdoor activities such as POTA and SOTA, it is an opportunity to show off their skills in setting up portable stations. For many, this is also a big social event, offering cookouts and early morning breakfasts.

An important factor, however, may be overlooked, and that is the opportunity to demonstrate the messaging service capabilities of the National Traffic System, especially in an emergency. NTS operators, as all amateurs, can show off this capability first by publicizing the event, encouraging people to come and see hams in action. Welcome them and offer information about amateur radio and how it is still very active in today’s world of technology. A second way is to demonstrate our messaging services that can be available in a disaster or situation when public infrastructure is unavailable. ARRL encourages this by offering extra points for transmitting formal written messages in the form of radiograms from any Field Day site. One hundred points can be counted for a radiogram to the Section Manager or Section Emergency Coordinator and another 100 points for 10 radiograms to friends and families, all sent over radio frequencies from the Field Day site. NTS traffic handlers have a big part in this activity. Beginning now, when clubs and groups are making their Field Day plans, traffic handlers can reach out to their clubs, encouraging them to take advantage of this activity, not only to gain points but also to help spread the word about amateur radio to others in their communities and beyond. Offer to help on Field Day, either from the site or from home relaying to traffic nets, or teach club members how to format radiograms, find traffic nets or digital outlets, and how to send these radiograms over the air.

ARRL Launches the NTS Letter

NTS Letter bannerFrom ARRL News:

10/06/2023 – There’s a new newsletter in the ARRL repertoire as of this week. The first issue of The NTS Letter was published on October 3, 2023. The NTS Letter is a monthly digest of all things related to the ARRL National Traffic System®. It is edited by Marcia Forde, KW1U, who is a veteran traffic handler and serves as the Section Traffic Manager for the ARRL Eastern and Western Massachusetts and Rhode Island Sections.

The NTS is network that allows for rapid movement of messages, referred to as “traffic,” from origin to destination, and for training amateur operators to handle written traffic and to participate in directed nets. The network consists of the layering and sequencing of both voice and CW traffic nets, as well as a digital system that operates 24/7. This nationwide system operates 365 days a year, generally relaying routine message traffic for training purposes and for maintaining readiness if called upon in an emergency. If called upon, these operators stand ready to assist emergency communications personnel and served-agency partners in relaying welfare and other messages. It is the modern continuation of the historic “radio relay” from ARRL’s founding in 1914.

Director of the ARRL New England Division, Fred Kemmerer, AB1OC, said the NTS is a great way to get involved in emergency communications. “Newly licensed and experienced amateurs alike who participate in NTS find satisfaction and enjoyment in learning the skills of sending and receiving concise written voice and CW traffic in an organized, on-air network. It’s a natural complement to the skills and training one needs to become an effective emergency communicator and Amateur Radio Emergency Service® volunteer. Plus, it’s an opportunity to meet new friends, and it’s fun!” said Kemmerer.

The NTS Letter is published monthly and is free of charge to ARRL members. Members can subscribe at arrl.org/opt-in-out by selecting “edit” to view all of their subscription preferences (members need to be logged in to their ARRL website account to do this).