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Eric Hendrickson

Retired tech nerd became licensed as Amateur Extra in 2023.
WWVB: The Nation's Time Keeper

WWVB: The Magic of VLF Demystified

Posted on January 7, 2026January 7, 2026 by Eric Hendrickson

It’s Time to Sync Up: The Reason WWVB Exists WWVB started not as a radio station, but as a measurement problem in need of a reliable solution. By the middle of the 20th century, the United States had reached a quiet inflection point. Electrical, telecom, and broadcast providers; transportation and…

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Federal Communications Commission building exterior shot.

60-Meter Band Update: FCC Allocates New Bandwidth to US Amateurs

Posted on December 27, 2025December 29, 2025 by Eric Hendrickson

I’ve always felt that the 60-meter ham band was somewhat of an oddity with limited capability and not really worth the effort. Other factors, like channelized operation, low power limits, and secondary status are puzzling and off-putting. But now, a new order from the Federal Communications Commission helps to solidify…

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Two hams making contacts during Winter Field Day. Setup outdoors under a canopy.

Winter Field Day 2026: How to Understand the Rules, Maximize Points, and Have Fun on the Air

Posted on December 20, 2025December 27, 2025 by Eric Hendrickson

Winter Field Day isn’t a contest in the traditional sense. It’s an operating event, an “experience” if you ask its founders. If you approach it like a sprint for raw QSO counts, you’re missing the point, and worse, you’re missing what Winter Field Day does reward: Versatility, planning, and realistic…

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Graphic: MeshCore Repeater Propatation Timing

MeshCore Repeater Deployment: Timing Considerations for Wide-Area Networks

Posted on November 21, 2025December 26, 2025 by Eric Hendrickson

MeshCore repeaters are showing up everywhere these days and I am thrilled to see it happen. As folks place these repeater nodes on high-rise rooftops, hillsides, and on ham and commercial towers, they’re discovering that the key to smooth wide-area repeater behavior isn’t just about height or terrain—it sometimes comes…

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Holiday Gift Guide 2025! It's here! My list of stuff to keep the geek in your life busy all year long.

Ham Radio Holiday Gift Guide 2025

Posted on November 17, 2025November 21, 2025 by Eric Hendrickson

For the Ham Who Builds, Hacks, and Tinkers Finding the perfect gift for a ham radio operator or electronics tinkerer doesn’t have to be a guessing game. This holiday gift guide highlights tools and gadgets that every maker, experimenter, and radio hobbyist will actually use—and love. From soldering stations and…

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Illustration depicting several nodes in a mesh network configuration.

MeshCore Trace Path: How to Map, Test, and Understand Your Network

Posted on November 14, 2025November 22, 2025 by Eric Hendrickson

The MeshCore Trace Path tool is one of many useful diagnostic features built into the MeshCore client. Similar to how the traceroute utility provides insight into TCP/IP networks, MeshCore Trace Path gives you visibility into how packets travel through the mesh network—whether you’re checking a single station or tracing a…

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The mesh is coming to Silicon Valley

MeshCore Deployment Lags in Silicon Valley

Posted on October 15, 2025December 29, 2025 by Eric Hendrickson

For a region that’s home to Silicon Valley innovation, it’s surprising and downright embarrassing how far behind the San Francisco Bay Area has fallen in MeshCore deployment and adoption. Across the Pacific Northwest, from Portland to Vancouver, operators are building resilient MeshCore networks that tie communities together with long-range, reliable,…

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HamSci is the scientific research extent of ham radio.

HamSCI: The Scientific Research Component of Amateur Radio

Posted on October 8, 2025October 8, 2025 by Eric Hendrickson

If you’re like me, you’ve always had a fascination with the way radio signals radiate from a source, travel through space, and induce a usable current in a wire far, far away. Ham radio to me is not just making the contact, but understanding the path, the conditions, the why…

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WRPSNet, Passive Radar, and the search for Malaysia Airlines Flight MH370.

WSPRnet Passive Radar and the Search for Flight MH370

Posted on March 31, 2025December 29, 2025 by Eric Hendrickson

Recently, I’ve been following some groundbreaking research suggesting that WSPRnet, the global network used by hams to log weak signal propagation reports, might have untapped potential as a passive radar tool. This revelation has taken on a particularly poignant dimension in the context of the ongoing search for Malaysia Airlines…

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Is MeshCore the reliable mesh network we've been waiting for?

What Is MeshCore? Off-Grid Mesh Networking with Inexpensive LoRa Devices

Posted on March 21, 2025November 16, 2025 by Eric Hendrickson

If you’re interested in off-grid communications with inexpensive hardware, there’s a new name you might be hearing more often: MeshCore. Launched just a couple of months ago, MeshCore is already generating buzz among amateur radio operators and open-source developers for its clean approach to decentralized mesh networking. But what exactly…

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Eric Hendrickson

eric@w6hs.net

Retired tech nerd and licensed Amateur Extra.

These days I spend my time playing with gadgets and writing about the technology that I find so fascinating.

I share opinions, review products, and brainstorm ideas along the way.

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