Editor of Zero Retries newsletter - https://www.zeroretries.radio. Writing about Technological Innovation in Amateur Radio. Published every Friday at 15:30 Pacific. Now in its fifth year of publication with 3500+ subscribers.
#hamradiohttps://bsky.app/profile/n8gnj.bsky.socialhttps://bsky.app/profile/n8gnj.bsky.social/post/3mdvurj6zos2lzeroretries.radio/zero-retries-0236/ Still transitioning to Ghost... Big stories: * Breaking - ADRCS and TARPN Announce New Audio OFDM-based Mode for VHF / UHF Radios * What Would A New, More Advanced Amateur Radio VHF / UHF Data Mode Look Like? * Kenwood TM-D750A / TM-D750E Mobile Radio Imminent https://zeroretries.radio/zero-retries-0236/02 Feb 2026 22:17 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3mdvurj6zos2lhttps://bsky.app/profile/n8gnj.bsky.social/post/3md6v6cb5wk2xFirst Zero Retries issue on Ghost (migrating off Substack): https://www.zeroretries.radio/zero-retries-0235/ The domain name to go with the platform change is still in flux - still trying to arrange things that the new domain name will be zeroretries.radio. Currently that redirects to www.zeroretries.radio.24 Jan 2026 18:53 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3md6v6cb5wk2xhttps://bsky.app/profile/n8gnj.bsky.social/post/3m5adr6tric23* A Remarkable Amateur Radio Presentation - LinHT at OpenAlt 2025 * Brief Update on KK7NQN Transcriber Service Node * Stixs Radio * Librephone Project * FreakWAN * Matchbox APRS * W1BTR Radio Programming Services ZR is an independent Amateur Radio newsletter. #hamradio https://www.zeroretries.org/p/zero-retries-022710 Nov 2025 00:15 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m5adr6tric23https://bsky.app/profile/n8gnj.bsky.social/post/3m4p7h6wka223* LinHT: An Open-source SDR Handheld Radio * MESHCON 2025 Wakeup Call to AR * Test Bench In A (Handheld) Box * direwolf Rel 1.8 * IP400 * 44Net VPN Update * New AllScan Units * The Comm 11/12 2025 Issue * FutureGEO * SDR-Hub * MMDVM 2025-10 Update * Hackaday Superconference Comm Badge #hamradio https://www.zeroretries.org/p/zero-retries-022603 Nov 2025 04:43 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m4p7h6wka223https://bsky.app/profile/n8gnj.bsky.social/post/3m4p6zyx2vk23* The AR World Has Changed For Me * Followup on How to Get (Re) Started in AR Data Comm * Vero Telecom VR-N76 - Flat Audio! * FreeDV’s Baseband FM * OpenMesh Voice Network * Why Mesh Networks Break * Packet Radio Interface from KM9G! * DigiPi 2.0 * Raspberry Pi Compute Module 0 #hamradio https://www.zeroretries.org/p/zero-retries-022503 Nov 2025 04:35 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m4p6zyx2vk23https://bsky.app/profile/n8gnj.bsky.social/post/3m4p6nd72mk23* AR is Missing the SDR “Forest” by Focusing on the Legacy “Trees” * My slide deck from my Pacificon 2025 presentation * Pacificon 2025 ZR Interesting exhibitors, etc. ZR is an independent Amateur Radio newsletter, now in its 5th year with 3200+ email subscribers. #hamradio https://www.zeroretries.org/p/zero-retries-022403 Nov 2025 04:28 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m4p6nd72mk23https://bsky.app/profile/n8gnj.bsky.social/post/3m4p6honmos23Hello followers - apologies that I'm four issues behind posting here on Bluesky. Things are back to "normal" here at Zero Retries Galactic Headquarters (well, what passes for normal, anyway) so regular notifications should resume this week.03 Nov 2025 04:25 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m4p6honmos23https://bsky.app/profile/n8gnj.bsky.social/post/3m4p5qi5z3223* Why Manufacturers May Be Reluctant About VHF / UHF / Microwave SDR “Real Radios” * VARA FM Via FM Repeater * FCC FACT SHEET In re: Delete, Delete, Delete * Help Track Our Light Sail! * Jesse WB2IFS Keynote at GRCon 25 * OpenRTX 0.4.2 * open.space * Hush - An Open Source Alt to VARA-HF #hamradio https://www.zeroretries.org/p/zero-retries-022303 Nov 2025 04:12 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m4p5qi5z3223https://bsky.app/profile/n8gnj.bsky.social/post/3m2drmcdbp223* VHF-UHF Packet Path Predictions * Why Should You Consider Joining TPRFN * How To Get (Re) Started In Amateur Radio Data Comms * Wow@Home * STARS-Me2 CubeSat * ARDC YouTube Channel * DARPA Packet Radio Network Protocols * GRF5604 RF amp boards * Review: futureGEO Workshop 2025 #hamradio https://www.zeroretries.org/p/zero-retries-022204 Oct 2025 04:45 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3m2drmcdbp223https://bsky.app/profile/n8gnj.bsky.social/post/3lzsdpvoklk23* What’s New at DLARC - 2025-09 * Voice over Packet (VoP) * The SW Based Future of AR * Polar Modulation * LinHT – First GRF5604 RF Amp Tests * RPi 500+ * BCR-220 Repeaters On Sale for $600 ZR is an independent Amateur Radio newsletter, now in its 5th year with 3200+ email subscribers. #hamradio https://www.zeroretries.org/p/zero-retries-022127 Sep 2025 06:22 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lzsdpvoklk23https://bsky.app/profile/n8gnj.bsky.social/post/3lzsdapqwp223* Zero Retries Digital Conference 2025 Wrap Up * Zero Retries Digital Conference 2025 Debrief - Part 1 Zero Retries is an independent Amateur Radio newsletter, now in its fifth year with 3200+ email subscribers. Radios are computers - with antennas! #hamradio (Apologies for this late posting.) https://www.zeroretries.org/p/zero-retries-022027 Sep 2025 06:13 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lzsdapqwp223https://bsky.app/profile/n8gnj.bsky.social/post/3lzsczca72s23Special issue... * Observations from GNU Radio Conference 2025 - Tersely Zero Retries is an independent Amateur Radio newsletter, now in its fifth year with 3200+ email subscribers. Radios are computers - with antennas! #hamradio (Apologies for this late posting - it's been a busy few weeks.) https://www.zeroretries.org/p/zero-retries-021927 Sep 2025 06:09 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lzsczca72s23https://bsky.app/profile/n8gnj.bsky.social/post/3ly6xj2r3h22f* AR At GRCon * AllScan.info Products * AllStar Revisited Series * HF Station on Frying Pan Tower in Atlantic * ebook - Signal Processing Recipes for Comm Systems * ARRL Lab Helps RAs Avoid Interfering With US Space Force Radar * RADE compared to SSB * AREDN® Network Beginner’s Guide #hamradio https://www.zeroretries.org/p/zero-retries-021806 Sep 2025 19:57 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3ly6xj2r3h22fhttps://bsky.app/profile/n8gnj.bsky.social/post/3lxn4jxjbas2a* KK7NQN Transcriber Service Node * Build It And They Will Come Doesn’t Work * Tech-Focused Hams * Meshcore In Surrey, BC * Low Drive VHF / UHF Amps * Icom ID-5200 * ka9q-radio and Rig Expert Fobos * DB0UV - Unique V/UHF Xpndr * LiNK500 * Real-Time Beamforming With SDR * T41-EP SDT Modular HF SDR https://www.zeroretries.org/p/zero-retries-021730 Aug 2025 17:39 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lxn4jxjbas2ahttps://bsky.app/profile/n8gnj.bsky.social/post/3lx23mxpqs22f* ZRDC 2025 Update * First LinHT Tests * LinHT – Open SDR HT * Demo LinHT M17 Decode * ARRL Tech Awards * PACKRAT * patty AX.25 stack * IPv6 /48 Subnets for Hams * JNOS 2.0q * KV4P V2 * AREDN Dev Plans * MMDVM Update * AR Needs a DEF CON? * AMSAT-SM wants a FD HT * AllStarLink Appeal For Donations https://www.zeroretries.org/p/zero-retries-021623 Aug 2025 04:02 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lx23mxpqs22fhttps://bsky.app/profile/n8gnj.bsky.social/post/3lwk5ror3zc2q* ZRDC Update * What’s New at DLARC * LinHT - Technological Innovation In Amateur Radio * A Modest Proposal * The AR Future Systems Skunkworks * Mesh Networking * AMSAT-CA Quietly Comes to Life * AREDN at DEFCON 2025 * N2IRZ “Returns” to “Print” * CS7000 M17 New Features #hamradio https://www.zeroretries.org/p/zero-retries-021516 Aug 2025 19:58 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lwk5ror3zc2qhttps://bsky.app/profile/n8gnj.bsky.social/post/3lw62nqexsc2jThe Zero Retries email subscriber count just bumped up to 3100 (was 3000 less than a week ago). Apparently someone said something nice about Zero Retries, or perhaps it's just more "late listeners" to Ham Radio Workbench Episode 242 - https://www.hamradioworkbench.com/podcast/hrwb-242-zero-retries-newsletter-with-steve-n8gnj-and-tina-kd7wsf Wow!😜 https://www.hamradioworkbench.com/podcast/hrwb-242-zero-retries-newsletter-with-steve-n8gnj-and-tina-kd7wsfWow!😜12 Aug 2025 00:30 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lw62nqexsc2jhttps://bsky.app/profile/n8gnj.bsky.social/post/3lvybb2uaek2j* 3 New Pseudostaffers * ZRDC 2025 Update * Additional Details on 802.11ah in AREDN * 1.5 New NinoTNC Derivatives * ARDC Grants List Updated * Starlink Beam Switching Upgrade * Decoding Meshtastic with GNURadio on RPi * Hamshack Hotline Users Invited into Hams Over IP * vARIM Messaging Program https://www.zeroretries.org/p/zero-retries-021409 Aug 2025 17:13 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lvybb2uaek2jhttps://bsky.app/profile/n8gnj.bsky.social/post/3lvfb3lsoec22* 3000+ Subs! * HRWB Episode 242 * ZR Guide Submitting FCC Comments * ZRDC 2025 Update 08/01/2025 * Notes From The M17verse * 12M Obs by SatNOGS * Build a Modern Digi * SF-HAB at OS 2025 * AREDN Support for 802.11ah * HamTV On ISS * GPS on the Fritz? Maybe eLORAN? #hamradio #M17project https://www.zeroretries.org/p/zero-retries-021302 Aug 2025 03:49 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lvfb3lsoec22https://bsky.app/profile/n8gnj.bsky.social/post/3lvc6av3evs2qJust updated the profile to say that Zero Retries now has 2900+ email subscribers! Thanks very much Ham Radio Workbench Podcast for sending fellow fans of Advanced Amateur Radio to check out Zero Retries!31 Jul 2025 22:20 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lvc6av3evs2qhttps://bsky.app/profile/n8gnj.bsky.social/post/3lvc5yfn4x22qTina KD7WSF and I were interviewed on the Ham Radio Workbench podcast, now available: HRWB 242 - Zero Retries Newsletter with Steve N8GNJ and Tina KD7WSF https://www.hamradioworkbench.com/podcast/hrwb-242-zero-retries-newsletter-with-steve-n8gnj-and-tina-kd7wsf31 Jul 2025 22:16 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lvc5yfn4x22qhttps://bsky.app/profile/n8gnj.bsky.social/post/3luvl27oogc2l* We Showed Up for Comments on FCC SB Docket 25-201 * M17 Moves Past Mainstream MMDVM Support * WPSD M17 Comm Fork * N7TAE mspot * LinHT (Formerly, OpenHT) and CC1200 M17 Hotspot * Open Commu Org (AM CELL) * RRI, ARRL Sign MOU ZR is an indy Amateur Radio newsletter. #hamradio #M17project #fcc https://www.zeroretries.org/p/zero-retries-0212a26 Jul 2025 22:05 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3luvl27oogc2lhttps://bsky.app/profile/n8gnj.bsky.social/post/3ludkrlpt5c2d* MMDVM Versus M17 * Comments to FCC re: AST SpaceMobile Claiming 430-440 MHz For Its Use Are Due Monday 2025-07-21 Zero Retries is an independent Amateur Radio newsletter, now in its fifth year with 2800+ email subscribers. Radios are computers - with antennas! #hamradio #M17project #mmdvm https://www.zeroretries.org/p/zero-retries-021119 Jul 2025 18:12 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3ludkrlpt5c2dhttps://bsky.app/profile/n8gnj.bsky.social/post/3ltroyn4m2k2y* ZR Enters Its 5th Year * What’s New at DLARC — Packet Radio History * Comment Period Open for Ten More Days re: AST SpaceMobile * Year 5 of the ZR Experiment In Progress * Hamshack Hotline Sunsets * Bitchat Messaging App Works * VarAC V12 ZR is an independent Amateur Radio newsletter. #hamradio https://www.zeroretries.org/p/zero-retries-021012 Jul 2025 15:39 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3ltroyn4m2k2yhttps://bsky.app/profile/n8gnj.bsky.social/post/3ltantd6as22p* VARA FM - 12.5 kHz vs 25 kHz * Jim Boddie NG2J SK * ADRCS Press Release re: IP400 * SARC Comm, 7/8 2025 * Radio Module 2 and DreamHAT+ * HydraSDR RFOne * OpenWrt ampr-ripd package * Seeed Studios reRouter Zero Retries is an independent Amateur Radio newsletter. #hamradio #HydraSDR #sdr https://www.zeroretries.org/p/zero-retries-020905 Jul 2025 21:03 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3ltantd6as22phttps://bsky.app/profile/n8gnj.bsky.social/post/3lsmtonyhi22x* ZRDC 2025 Registration Now Open * AST SpaceMobile Lays Claim to 430-440 MHz and 902-928 MHz for Commercial Sat Comms * Details About Data Over DMR * 2025 June - State of the APRS Foundation (YouTube) * Update on AR Power Amps * QRadioLink - Multimode SDT App * HackRF Pro Announced #hamradio https://www.zeroretries.org/p/zero-retries-020827 Jun 2025 23:55 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lsmtonyhi22xhttps://bsky.app/profile/n8gnj.bsky.social/post/3ls3gkqjnss2p* The TPRFN Network * Oh, The Signals You’ll Make * AR’s Lack of Imagination re Rptr Tech * Retevis Ailunce H1 DMR Radio * APRS101.pdf is Obsolete * Weather Radiosondes * Rig Supt for 9600 BAUD Packet * Universal Radio Hacker * QRP Labs Polar Modulation ZR is an independent Ham Radio NL. #hamradio https://www.zeroretries.org/p/zero-retries-020721 Jun 2025 01:45 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3ls3gkqjnss2phttps://bsky.app/profile/n8gnj.bsky.social/post/3lrjxle2cp22p* What’s New at DLARC * M17 - N8GNJ’s Perspective * Followup On SFRs * IP400 Press Release * APRSF Zoom Call * Reasonable UPS with USB and 12V * Packet Commander app * Skyroof Sat Track / SDR software * Improving the CS7000 M17 PLUS Zero Retries is an independent Amateur Radio newsletter. #hamradio https://www.zeroretries.org/p/zero-retries-020614 Jun 2025 03:01 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lrjxle2cp22phttps://bsky.app/profile/n8gnj.bsky.social/post/3lr5mwimdbs2f* Raspberry Pi 5 Porch Ops * Minor Scoop About FlexRadio’s Impressive Engineering * Thorough Explanation of Single Frequency Digital Mobile Radio Repeater * Data Repeaters * Hot Iron #129 is Posted to the Website Zero Retries is an independent Amateur Radio newsletter. #hamradio https://www.zeroretries.org/p/zero-retries-020509 Jun 2025 05:19 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lr5mwimdbs2fhttps://bsky.app/profile/n8gnj.bsky.social/post/3lqncxmaui22f* A Few Last ZR Impressions of Hamvention 2025 * ARDC Priority Areas for Funding - R&D * The Importance of Internet-connected Systems for Ham Radio Community * M17 Conference 2025 – Talks and Stands * futureGEO Workshop Scheduled * Western CO Data Rptr * New Dev Work on JS8Call #hamradio https://www.zeroretries.org/p/zero-retries-020402 Jun 2025 17:38 +0000at://did:plc:lmi6me3tkn25ufkobednlwem/app.bsky.feed.post/3lqncxmaui22f