Skip to main content

[@ModernRogue] Inside Austin’s Radio Rebellion

· 5 min read
[@ModernRogue] Summarizer
Video Bot

@ModernRogue - "Inside Austin’s Radio Rebellion"

Link: https://youtu.be/HYSfengzkLg

Duration: 19 min

Transcript: Download plain text

Short Summary​

Tommy Xstrand of the Austin mesh community and a Mesh Core installer walk through deploying a solar-powered mesh repeater at the Wizards Tower. The episode covers Mesh Core's 910 MHz operation on the ISM band, on-site coverage tests reaching ~20 miles to nodes like Independent Southwest, and practical RF safety lessons. Austin Mesh is promoted as a growing community of roughly 400-500 members seeking new antenna host sites.

Key Quotes​

  1. "for any mesh network. The most important thing is that you be on the same protocol as all the other humans, right?" (00:00:59)
  2. "Anywhere from like 32 to 64 hops. If you need that many to get to your desired end point," (00:01:49)
  3. "Height is might. It rhymes, so it must be true." (00:02:08)
  4. "And and I know that antennas have to be tuned to the wavelength. Do you know what wavelength we're on? We're on a band, a set of frequencies called the ISM band in the United States, industrial, science, and medical. But really, we're specifically on with Mesh Core, the way we're using it here in Austin, [music] 910 MHz." (00:06:17)
  5. "We went from negative signal strength to almost 100% signal strength." (00:15:29)

Detailed Summary​

Episode Overview​

This episode features Tommy Xstrand, a representative of the Austin mesh community, alongside a Mesh Core installer, documenting the deployment and testing of a new solar-powered repeater at the Wizards Tower near Austin, Texas.

Austin Mesh Community​

  • Austin is described as one of the biggest mesh network communities in the USA, with roughly 400-500 people online and meetups held about once a month.
  • The community maintains a public Discord and YouTube channel and actively recruits antenna host sites to expand coverage.
  • In the Austin area only about three repeaters are connected to the internet, so public online maps display only a fraction of actual mesh traffic.

Mesh Core vs. Meshtastic​

  • Mesh Core is a newer mesh networking protocol, distinct from Meshtastic, that works through a phone app for simple data and texting.
  • Mesh broadcasts in Austin can use anywhere from 32 to 64 hops to reach an endpoint.
  • Messages are encrypted, but packet headers (containing next-hop node addresses) are publicly visible, so routing paths can be observed even though payloads are not readable.

Wizards Tower Repeater Installation​

  • Mesh Core in Austin operates on the ISM band at 910 MHz; the antenna is tuned to 915 MHz and usable across 902-928 MHz.
  • The repeater is solar-powered with a waterproof enclosure, and the solar panel is oversized for Austin's sun conditions, expected to run indefinitely.
  • The pole is approximately 12 meters above ground level, with an estimated range of at least 10 miles in every direction, opening "hundreds of square miles" of direct coverage.
  • Fun aside: Wizard Academy previously won an auction for the actual hot air balloon prop from the TV show Lost, cheap only because it had to be shipped from Hawaii.

On-Site Coverage Tests​

  • Line of sight to the next node was measured at roughly 20 m observed, 15 m and 12 m as the crow flies.
  • A direct link to Modern Rogue HQ (MRHQ) failed because a hill obstructed line of sight.
  • Routing instead through a nearby auto shop ("auto specialists") repeater succeeded in reaching HQ, though signal strength was low and intermittent (about 15-20% signal clearance).
  • After a failed login attempt, rebooting the pocket node fixed the issue — described by the installer as "the curse of the modern road."
  • Moving an antenna below the roof line improved signal from negative to nearly 100%, confirming that the roof structure was blocking the radio link.
  • At 5 meters antenna height coverage reached 20 miles; raising to ~12 meters extended reach to Luling and Bastrop, Texas, while western range stayed at 8-10 miles due to terrain.
  • A successful trace path ping of about 15 miles reached a downtown node called Independent Southwest.
  • During the demonstration, nearly 200 packets passed through the local repeater, counted one at a time despite being encrypted.

RF Safety Warnings​

  • A radio must be powered down before removing its antenna; without a load, transmitted power reflects back and can overheat or fry the radio.
  • Placing an antenna next to metal detunes it, causing resonance at a different frequency than designed.

Community Resources​

  • The installer noted they have installed approximately 40 Mesh Core nodes.
  • Austin Mesh is promoted as a local community with meetups and Discord.
  • The creators built and recommended an RF Index comparison site for selecting radios for local mesh networks.