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Zero Retries Digital Conference 2025

Image courtesy of Zero Retries Digital Conference 2025

Updated July 3, 2025

The inaugural Zero Retries Digital Conference (ZRDC) 2025 will be held in Everett, Washington, USA on Saturday, September 13, 2025.

ZRDC 2025 is sponsored by the Zero Retries newsletter.

ZRDC 2025 will showcase technological innovation in Amateur Radio as discussed in the Zero Retries newsletter. Planned presentations and demonstrations include (but are not limited to):

  • The IP400 Networking Project

  • M17 Digital Voice / Data system (including demonstrations with an M17 repeater)

  • MMDVM-TNC data system (including demonstration of MMDVM-TNC via repeater)

  • AREDN, HamWAN, and other Amateur Radio microwave networking

ZRDC 2025 builds on the rich history of significant Amateur Radio conferences in the Seattle, Washington metropolitan area that also showcased technological innovation in Amateur Radio, including Comm Academy, MicroHAMS Digital Conference, Valley Camp Summer Gathering, and the 1996 and 2013 TAPR Digital Communications Conferences (both of which are the first and second best attended DCCs).

ZRDC 2025 will be held in the same venue as the GNU Radio Conference 2025 - the Edward D. Hansen Conference Center in downtown Everett. GRCon 2025 will be held Monday September 8th through Friday, September 12th, 2025.

While GRCon 2025 and ZRDC 2025 are being held consecutively, and at the same venue, the two events are independent of each other.

The manager of the Zero Retries Digital Conference is Tina Stroh KD7WSF.

Registration for ZRDC 2025 Now Open!

Registration for the inaugural Zero Retries Digital Conference (ZRDC) 2025 is now open (June 27, 2025)!

Click here to register for ZRDC 2025

Registration offers in-person access AND virtual attendance options to attend the inaugural Zero Retries Digital Conference 2025. Ticket price descriptions state what is included with each level of participation. The venue is large enough so there is no limit to the number of attendees.

In- Person Attendee: Price $125.00. Founding Members: $99.00 Annual Subscribers: $110.00

Includes access to the conference, conference proceedings (if papers have been received), welcome refreshments, refreshments throughout the day, buffet lunch and a chance to win door prizes. Afterwards, all attendees are invited to a pizza party across the street from the conference center hosted by Tina and Steve Stroh.

Welcome refreshments will include fresh fruit with a Greek yogurt dip, assorted pastries, muffins, doughnuts and scones, and assorted bagels with butter, cream cheese and preserves. Coffee , hot tea, and juice will be available.

The buffet lunch will consist of a green and Southwest style salad, deli sandwich display of turkey, ham, and roast beef with cheddar, swiss, provolone cheeses, various condiments, assorted deli breads, deli wraps, roasted veggies, polenta bar, apple crumble and brownies. Beverages choices of coffee, tea, iced tea, and lemonade will be offered. Throughout the day, coffee service, lemonade and fruit infused water will be available.

There is a cost difference for Founding Member subscribers and Annual Subscribers.

Live Attendance via Zoom: Price $45.00

We have hired an AV team to provide a live feed into the conference so that people can be part of the live conference without being there. The URL will be sent a few days prior to the conference.

Student Admission: Price: $75.00

Ticket includes same items as an in-person attendee but at a reduced price for students of higher education with a valid student ID and high school students. Students unable to attend in-person can use the live attendance ticket.

Early Post Conference Video: Price $20.00

Recorded video of the conference will be available after 9/30/2025 from the Zero Retries Store. After 1/2/2026, the conference will become open-source and can be downloaded at no charge.

The latest information on ZRDC 2025 will be maintained at: https://www.zeroretries.org/p/conference

See below for hotel suggestions and sightseeing opportunities in the Seattle/Everett area under hospitality.

ZRDC 2025 Press Release Reg Open
75KB ∙ PDF file
Download
Download

One Page Flyer

Zero Retries Digital Conference 2025 Flyer
467KB ∙ PDF file
Download
Download

Individual Amateur Radio Operator Sponsorship Letter

ZRDC Individual Sponsor Letter
323KB ∙ PDF file
Download
Download

Corporate Sponsor Packet

ZRDC Corporate Sponsor Packet
621KB ∙ PDF file
Download
Download

Call For Papers

Zero Retries Digital Conference 2025 Call For Papers
499KB ∙ PDF file
Download
Download

Sponsorship queries should be directed to Tina Stroh, KD7WSF
tina@zeroretries.net.

ZRDC 2025 Hospitality

Hotels

There are no room blocks or discounted rooms at any of these hotels for the conference.

  1. Courtyard by Marriott Everett

    3003 Colby Avenue, Everett WA 98201

    Reservation Line: 833-372-2865

    Phone: 425-259-2200

    It is a 0.4 mile dive to the Conference Center or a 9 min walk.

  2. Hotel Indigo Seattle Everett Waterfront, IHG Hotel

    1028 13th Street, Everett, WA. 98201

    Phone: 425-217-2772

    It is a 2.3 mile drive to the Conference Center or a 45 minute walk.

  3. Delta Hotel Seattle Everett

    3105 Pine Street, Everett, WA. 98201

    Phone: 425-339-2000

    It is a 0.8 mile drive or 4 minute walk the Conference Center.

Sightseeing/ Places to Visit

Boeing Future of Flight

As a public attraction and brand home, Boeing Future of Flight tells Boeing’s story through interactive and immersive experiences, programs, and tours with a mission to educate, connect, and inspire.

We are the gateway to the renowned Boeing Everett Factory Tour, providing a unique opportunity to explore the largest manufacturing facility in the world.

Our Gallery showcases a variety of exhibits highlighting both current and emerging Boeing products and services, where guests can explore cutting-edge advancements in space and hypersonic travel, sustainable fuels, autonomous aerial systems, and more.

A visit to Boeing Future of Flight is not complete without planespotting from the observation Sky Deck overlooking Paine Field, and exploring aerospace-inspired gifts from the flagship Boeing Store.

Blake Island

A short ferry ride from the Downtown Seattle Waterfront to an Ingenious Village where you can enjoy the entertainment of a native tribe and taste a delicious salmon bake.

North Cascades

The North Cascades in Washington offers breathtaking opportunities to explore one of the most rugged and pristine mountain ranges in the United States. Hiking, scenic drives, boating, and wildlife viewing are just some of the amazing things you can do in the North Cascades. Colonial Creek Campgrounds, situated along the shores of Diablo Lake (pictured above) has boat rentals and is a popular choice.

A short ferry ride from the Downtown Seattle Waterfront to an Ingenious Village where you can enjoy the entertainment of a native tribe and taste a delicious salmon bake.

Olympic Peninsula

Camping on the Olympic Peninsula in Washington State offers a diverse range of outdoor experiences, from lush rainforests and rugged coastlines to alpine meadows and pristine lakes. The Olympic Peninsula is known for the Olympic National Park and has multiple campsites, including Hog Campground, Kalaoch, Sol Duc, Mora, and Hear O' the Hills Campground.

San Juan Island

Enjoy the natural beauty of the San Juan Islands in Washington State. A picturesque archipelago located in the Salish Sea, Northwest of Washington State. The waterfront campground at San Juan County Park offers views of Haro Strait and the surrounding Islands. Orcas Island has several different campgrounds and leads to the iconic Mount Constitution viewpoint.

Mount Rainier National Park

Mount Rainier is the highest peak in the Cascade Range and has different camping experiences, from developed campsites to backcountry sites. Ohanapecosh Campground is in the southern part of the park and has forested sites. Sunrise Area in the northeast part of the park offers stunning views of Mount Rainier. Mount Rainier has backcountry camping for those interest in more remote experiences.

Leavenworth, Washington

Leavenworth, a small town in the middle of the Cascade Mountains, is one of the most picturesque spots in Washington. The town is modeled after a Bavarian village, so you’ll feel like you’re walking through an Alpine village as fall foliage colors the mountain scenery around you.

ZRDC Email List

If you would like to stay abreast of the latest developments regarding the Zero Retries Digital Conference, you can join the ZRDC email list - https://groups.io/g/zrdc. This will be a forum for announcements, discussion between attendees, etc.

Media and Other Mentions of ZRDC 2025

© 2025 Steve Stroh N8GNJ
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