Zero Retries Index 2025

Index of Zero Retries Issues and stories published in 2025

For PDF versions of Zero Retries, see the

Zero Retries newsletter collection on

Digital Library of Amateur Radio & Communications (DLARC)

on the Internet Archive.

Links below skip ahead to each month

• January 2025

• February 2025

• March 2025

  • Zero Retries 0193 - 2025-03-14

• April 2025

• May 2025

• June 2025

• July 2025

• August 2025

• September 2025

• October 2025

• November 2025

  • Zero Retries 0222 - 2025-10-03

  • Zero Retries 0223 - 2025-10-10

  • Zero Retries 0225 - 2025-10-25

• December 2025

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January 2025

February 2025

March 2025

Zero Retries 0193 - 2025-03-14

Request To Send

• Paid Subscribers Update

• Light Week For News

• Ephemera from Puyallup

• Store and Forward Podcast Episode 11

• Any Zero Retries Readers Members of Radio Club of America?

Breaking News - From FCC - IN RE: DELETE, DELETE, DELETE

GNU Radio Conference 2025 in Everett, Washington, USA

What’s New at Digital Library of Amateur Radio & Communications — March 2025

• Editor’s Postscript

Update on Oahu (Hawaii) Network of Multi-band APRS Digipeaters

• Editor’s Note

The Threat to the US 902-928 MHz (33 cm) Band from NextNav

• [FCC] to Explore Alternatives to [GNSS] Systems

• FCC Public Notice - Wireless Telecommunications Bureau and Office of Engineering and Technology Seek Comment on NextNav Petition For Rulemaking

• ARRL and Meshtastic Publicize the Fight to Save 902-928 MHz

• FCC Docket 24-240 Deadline for Comments is Thursday 2024-09-05

• Backgrounder on Commenting on FCC Docket 24-240

  • Primary things to know about FCC Docket 24-240

  • What the FCC Wants to Hear About (Cares About)

  • Attacking NextNav Won’t Make an Impact With the FCC

• Comments of Steven K. Stroh Regarding FCC Docket 24-240

  • Abstract

  • Background

  • Comments on Amateur Radio Usage of 902-928 MHz

  • If 902-928 MHz Is Reconfigured Per NextNav’s Request, a Unique Spectrum Ecosystem Will Be Severely Impacted

  • 902-928 MHz Fills the Role of a De Facto Citizen’s Data Radio Service

  • The Subtle Role of 902-928 MHz in Addressing the “Spectrum Workforce” Shortage

  • Is NextNav’s Proprietary Technology Worth “Sacrificing” the Flourishing Spectrum Ecosystem of 902-928 MHz?

  • PNT Services

  • Broadcast Positioning Service - BPS

  • eLORAN

  • Inertial Navigation Systems - INS

  • Rubidium Atomic Timebases

  • “5G” Spectrum

  • CBRS - 150 MHz of “5G” Spectrum

  • Wi-Fi 6E (6 GHz) - More Than 1 GHz of “5G” Spectrum

  • Galileo - Robust GNSS Services

  • In Conclusion

  • Managing the Radio Spectrum for the Broadest Possible Public Interest

  • NextNav’s Proposed Reconfiguration of 902-928 MHz is Not In the Broadest Possible Public Interest

• Reply Comments on FCC Docket 24-240 Due on Friday 2024-09-20

• Background on my FCC Docket 24-240 Reply Comments

• Last Possible Moment Reply Comment?

• A Few Good Comments on FCC Docket 24-240

  • Analogy - the 2.4 GHz Band is Also “Underutilized”

  • The Power Players In the 902-928 MHz Band

  • The non Power Players in the 902-928 MHz Band - Meshtastic and Amateur Radio

  • Drinking from a Firehose - Too Many Comments to Process

  • Individual Responses

  • Preparation for the Next Spectrum Assault

• Reply Comments of Steven K. Stroh Regarding FCC Docket 24-240

  • Abstract

  • Background

  • 902-928 MHz Has Become the Starting Point of Personal Experimentation and Self Training in Radio Technology

  • Growing the Spectrum Workforce

  • Strategic Objective 4.1 | Attract, train, and grow the current and next-generation spectrum workforce.

  • Strategic Objective 4.2 | Improve policymakers’ understanding of spectrum considerations.

  • Strategic Objective 4.3 | Improve the public’s understanding of radio frequency spectrum and raise awareness of its role in everyday life.

  • In Conclusion

  • Managing the Radio Spectrum for the Broadest Possible Public Interest

• My FCC Docket 24-240 Reply Comments Filed

• Rough Week… Leading to a Rough Rest of Decade

ZR > BEACON

• M17Web: Listen to M17 Reflector Traffic in your Browser

• Two New Books on Software Defined Radio

• Chasing RFI Waves Series

• Voice of the Mesh Podcast

• Director of Radio Solutions at Stealth Startup

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April 2025

May 2025

June 2025

July 2025

August 2025

September 2025

October 2025

November 2025

Zero Retries 0222 - 2025-10-03

Request To Send

• Paid Subscribers Update

• Seven NewTechHams from GRCon 2025!

• Mourning Typepad

• Great Minds…

• Still Working on ZRDC 2025 Archives

• Weekends Are For Amateur Radio!

VHF-UHF Packet Path Predictions
Don Rotolo N2IRZ

Why Should You Consider Joining The TPRFN Network
Glenn Allison N3MEL

• Editor’s Note

• 1. Enhanced Emergency Communications (EMCOMMs)

• 2. Digital Traffic Capability and Diversity

• 3. Training and Skill Development

• 4. Expansion and Community

IP400-users - A New Independent Email Support Group for IP400 Network Project
Steve Stroh N8GNJ

How To Get (Re) Started In Amateur Radio Data Communications
Steve Stroh N8GNJ

• What Not To Do - Legacy 1200 bps AFSK Packet Radio, Digipeaters, and Radios With Built in TNCs

• QO-100 - Amateur Radio Payload in Geosynchronous Orbit Above the Eastern Hemisphere

• Most Modern Amateur Radio Data Communications Experience - AREDN

• New Packet Radio

• VARA HF, VARA FM, and VarAC

• Modern Amateur Radio Packet Radio

  • KISS

  • Faster Data Speeds

  • Forward Error Correction

  • Terrestrial Amateur Packet Radio Network - TARPN

  • Dire Wolf Software TNC

  • JNOS - Swiss Army knife of Packet Radio Routing

  • BBS

  • NinoTNC

  • TNC4

  • DigiPi

  • WINTNC

ZR > BEACON

• The Wow@Home Radio Telescope

• STARS-Me2 CubeSat Data Communications Experiment

• ARDC Kicks off YouTube Channel with 44Net Origin Story

• The DARPA Packet Radio Network Protocols

• GRF5604 RF amplifier boards are now available at PCBWay

• Review: futureGEO Workshop 2025 in Bochum

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Zero Retries 0223 - 2025-10-10

Request To Send

• Paid Subscribers Update

• The Serenity Prayer for Amateur Radio

• Weekends Are For Amateur Radio! Conferences - Like Pacificon 2025

Why Manufacturers May Be Reluctant About VHF / UHF / Microwave SDR “Real Radios”
Steve Stroh N8GNJ

VARA FM Via FM (Analog) Repeater
Steve Stroh N8GNJ and Scott Currie NS7C

• Testing A Dedicated VARA FM Repeater

• Terrain Challenges

• Summary

ZR > BEACON

• University of Pennsylvania Amateur Radio Club Wireless Luncheon

• FCC FACT SHEET In re: Delete, Delete, Delete - Direct Final Rule – GN Docket No. 25-133

• Help Track Our Light Sail! - Setting Up a Ground Station for the Cornell Alpha Mission

• Video - HackRF Portapack Evolved? This is PortaRF

• Dire Wolf Version 1.8 Beta Test

• Jesse Alexander WB2IFS - Keynote at GNU Radio Conference 2025

• OpenRTX 0.4.2 Released

• PocketPD Update: Announcing a New Version for Drone & Ham Radio Operators

• open.space

• Harald Welte joins ARDC’s Board of Directors

• Documentary Explores Collins Radio’s Role in Creation of the Internet

• Hush - An Open Source Alternative to VARA-HF

• Video - MeshCore Presentation by Liam Cottle

• Video - Ukraine’s New Jam-resistant Battlefield Radios Signal Soldier-led Revolution

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Zero Retries 0225 - 2025-10-25

Request To Send

• Paid Subscribers Update

• Thank You, Readers, for the Thoughts on the (Not Excessive) Length and Detail of Zero Retries

• Western Washington University Develops Electrical and Computer Engineering Department

• Weekends Are For Amateur Radio!

What’s New at Digital Library of Amateur Radio & Communications — October 2025
Kay Savetz K6KJN

• Editor’s Postscript

The (Amateur Radio) World Has Changed For Me
Steve Stroh N8GNJ

• LinHT - Linux (and GNU Radio) Handie Talkie (Handheld Radio)

• GNU Radio Conference 2025

• Exponentially Improving Radio Technology in Ukraine

Followup on How to Get (Re) Started in Amateur Radio Data Communications
Ben Kuhn KU0HN

• Editor’s Note

• Vero Telecom VR-N76

• Flat Audio!

• Buying From a Reliable Source

• Using the VR-N76

• Other Features of G8BPQ BBS

ZR > BEACON

• Accessing the TAPR Annual Membership Meeting

• An Update on FreeDV’s Baseband FM (BBFM) Technology

• Direction Finding (Bunny / Transmitter Hunting) in 2025

• DEF CON 33 Videos (including RF Village) Are Live

• How to Get Started With Outreach

• OpenMesh Voice Network

• Why Mesh Networks Break When Big Crowds Gather

• Next ARDC Grant Tranche is 2026-02-01

• EASY Packet Radio Interface from KM9G! SMS, Email, BBS, Network

• DigiPi 2.0 Released!

• LinHT Is The Cover Story of the CQ DL 2025-11 Issue

  • Post Publication Update

• RepeaterBook is Here for You....Now and into the Future

• Raspberry Pi Unveils the $18 Compute Module 0 — But Only for Chinese Customers, for Now

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December 2025

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