Technical
58 stories tagged “Technical”, newest first.
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Coming Up in Amateur Radio Magazine: Measure Your EMR, Build a Rig and Celebrate Six Metres
The next issue of the WIA's Amateur Radio magazine covers measuring electromagnetic radiation exposure, building a rig, and a six-metre band celebration.
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RADE: Australian Amateur Radio Innovation Takes Digital Voice in a New Direction
The Wireless Institute of Australia highlights RADE, an Australian amateur radio development in digital voice that points the mode in a new direction.
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Where Will Your Signal Go? Explore the RSGB's Online HF Propagation Tools
The Wireless Institute of Australia points readers to the RSGB's set of online HF propagation tools, which help estimate where a signal is likely to be heard on the bands.
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Amateur Radio Weekly – Issue 441
This weekly roundup covers the WSJT-X 3.2.0-rc1 release, which adds JTTY, a weak-signal keyboard mode aimed at RTTY contesting, and a report on ESP32 chips that can work as built-in SDR receivers.
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HBradio 5/2026 online
Issue 5/2026 of the Swiss society's magazine is available for download. It features an interview with a blind ham, the new USKA website, elevated radial calculations, a magnetic-loop field meter build, the OscarWatch satellite software and contest results.
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Reminder: Notfunk-Tagung am Samstag, 10. Oktober 2026
Reminder: Emergency radio conference on Saturday, 10 October 2026
USKA holds its EmComm conference in Brütten on Saturday, 10 October 2026, and for the first time also invites authorities and rescue organisations. The programme covers Winlink, AREDN mesh networks, VHF/UHF repeater voice links and equipment displays.
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Kort radioamateurnieuws – week 40, 2026
Short amateur radio news – week 40, 2026
VERON's weekly news roundup covers the society's move to a new membership administration system on 1 November 2026. It also mentions an inflatable loop antenna for bicycle tyres, a lecture on 50 years of amateur radio, and a reported Icom X-026 reveal.
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D-STAR ENDURVARPINN ER VIRKUR.
D-STAR repeater is active
The Icelandic society reports that the D-STAR repeater TF3RPI in the Bláfjöll mountains is working. It runs on 439.950 MHz transmit and 434.950 MHz receive, with an internet gateway, and the society's repeater information page has been updated.
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Vortrag: Überraschendes zu Monopol- und Vertikalantennen
Talk: Surprising Facts about Monopole and Vertical Antennas
A talk by Wolfgang, DK2FQ, on monopole and vertical antennas takes place on Treff.DARC on 5 October at 19:00. It uses practical examples to show how such antennas actually behave and which assumptions prove surprising.
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Keeping the Radio Sky Quiet: What Radio Astronomy Can Teach Amateur Radio About Interference
The Wireless Institute of Australia compares how radio astronomers protect against radio interference with the problems amateurs face, and considers what hams could learn from those methods.
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Interview unter dem Turm #96: Lars Weiler, DC4LB, über das DARC LAB auf der HAM RADIO
Interview under the Tower #96: Lars Weiler, DC4LB, on the DARC LAB at HAM RADIO
Episode 96 of the DARC video series features Lars Weiler about the DARC Lab stand at HAM RADIO 2026. Visitors could use 3D printers, soldering stations and measuring equipment to work on technical projects.
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Interview unter dem Turm #96: Lars Weiler, DC4LW, über das DARC LAB auf der HAM RADIO
Interview Under the Tower #96: Lars Weiler, DC4LW, on the DARC LAB at HAM RADIO
In episode 96 of its video series, DARC speaks with Lars Weiler, DC4LW, who staffed the DARC Lab stand at HAM RADIO 2026. Visitors there could work on technical projects using 3D printers, soldering stations and test equipment.
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“WSJT-X Improved” gaat verder als “WS – Digital Mode Suite”
"WSJT-X Improved" continues as "WS – Digital Mode Suite"
The WSJT-X Improved software is renamed WS – Digital Mode Suite. The change avoids confusion with the version of WSJT-X by Joe Taylor, K1JT.
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SDROXIDE & SDROXIDE-SWL: Rust-gedreven innovatie voor Zendamateurs, luisteramateurs en CB’ers
SDROXIDE & SDROXIDE-SWL: Rust-driven innovation for hams, listeners and CB operators
VERON presents SDROXIDE and SDROXIDE-SWL, SDR receiver software written in Rust for transmitting amateurs, listeners and CB users, as a lighter alternative to heavier existing packages.
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Monitor Screens in Ham Radio: Getting the Big Picture
An essay on how computer monitors have become central to the modern ham shack, covering SDR spectrum and waterfall displays, logging and digital-mode decoding, and the use of multiple screens.
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DARC-Seminar „Smithdiagramm und Netzwerkanalysator“ am 23.–24. Oktober
DARC Seminar "Smith Chart and Network Analyzer" on 23–24 October
DARC holds a seminar on Smith charts and network analyzers at the Baunatal amateur radio center on 23–24 October. DK5HH leads it, and the €205 fee includes one hotel night and meals.
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Radio Club of America 2026 Technical Symposium & 117th Awards Banquet
The Radio Club of America holds its 2026 Technical Symposium and 117th Awards Banquet on Saturday 21 November in New York City. Registration is open.
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Amateur Radio Daily will Attend Zero Retries Digital Conference and Pacificon
The producer of Amateur Radio Daily and Weekly will attend the Zero Retries Digital Conference and Pacificon from 16 to 18 October, and speaks at ZRDC about hams focused on digital communication and software.
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Amateur Radio Weekly – Issue 440
This weekly link roundup includes the RADE speech mode, which uses half the bandwidth of SSB, a native macOS Winlink client called MacWinlink, and a report on errors in Winlink vanity callsign applications.
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tinySA Ultra Spectrum Analyzer and Signal Generator
A review of the tinySA Ultra, a portable spectrum analyzer with a built-in signal generator. The author presents it as a complement to a NanoVNA for locating signals and checking their characteristics in the field.
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Veranstaltungstipp: «Matrix trifft Smith Chart»
Event tip: "Matrix meets Smith Chart"
USKA section HB9AG hosts a free talk on simulating and matching HF networks with Smith charts and software, including tuner placement and feedline losses. It takes place on 2 October 2026 in Lupfig, Switzerland.
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Will RADE Be the Next SSB?
FreeDV's new digital voice mode, RADE, is reported to use about half the bandwidth of an SSB signal. The piece asks whether it could play a role on HF comparable to SSB's replacement of AM.
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JTTY — schneller, empfindlicher Tastatur‑Digimode für Contest & Chat
JTTY — fast, sensitive keyboard digital mode for contests and chat
WSJT-X 3.2.0-rc1 introduces JTTY, a keyboard-to-keyboard digital mode for contest exchanges and chat. It uses 4-tone GFSK, about 127 Hz bandwidth, and offers better sensitivity than RTTY.
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Interview unter dem Turm #95: Raphael Engel über sein „Jugend forscht“-Projekt
Interview under the Tower #95: Raphael Engel on his Jugend forscht project
DARC's video series features Raphael Engel, who built a programming language that handles physical units such as grams and meters. He is interviewed about his Jugend forscht project at HAM RADIO 2026.
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VIÐTÆKI Á SAUÐÁRKRÓKI ENDURNÝJAÐ.
Web Receiver at Sauðárkrókur Renewed
A WEB-888 SDR receiver now operates at Sauðárkrókur in Iceland, replacing an older KiwiSDR. It covers the HF amateur bands and supports up to 12 simultaneous listeners over the internet.
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Vortrag: Anwendung der CAT-Schnittstelle mit Beispielen für Raspberry Pi und ESP32
Talk: Using the CAT Interface, with Examples for Raspberry Pi and ESP32
A talk on 24 September at 19:00 on Treff.DARC covers using the CAT interface with Raspberry Pi, PC and ESP32 in Python, with examples on the IC-705, Elecraft KXPA and Yaesu FT-710.
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DXing at Galactic Scale
An essay by KC2JJM compares SETI to ham weak-signal work, noting 65 years of searching near the 1420 MHz hydrogen line without a confirmed signal, and asks whether the search method needs rethinking.
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LHS Episode #631: FreeDV and RADE with Mooneer Salem K6AQ
Linux in the Ham Shack episode 631 features Mooneer Salem, K6AQ, discussing current developments in FreeDV and RADE, along with the hosts' own news.
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How to fix your gadget Blogs I follow using HTML
A blogger shares an HTML-based fix for the Blogger gadget that lists followed blogs, which had stopped working, developed with help from AI.
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A Bandpass Filter Pulls In The Signals
A builder designs a surface-mount bandpass filter board to stop nearby FM broadcast transmitters from overloading receivers on 2 metres and 70 centimetres. The board also includes a low-noise preamplifier and transmit/receive relays.
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ICQPodcast Episode 493 – What makes an Radio Antenna Fail?
Episode 493 of the ICQ Podcast covers ham radio news and a feature on what makes antennas fail. Stories include an Icom IC-7300MK2 firmware update, an AMSAT youth course and a North Dakota communications blackout drill.
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IBT: Antennen-Software unter Linux
IBT: Antenna software under Linux
An ÖVSV Vienna talk by OE3RSU traces the history of the NEC antenna modelling software and its ports to many platforms. It also covers his own ports and emulators for older hardware.
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"Active" call sign probably isn’t what you think
K4HST explains that FCC and ARRL call sign lookups can mislead: a call sign marked active may be in a grace period and unable to transmit, while an apparently expired one may still be legal to use.
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Contest University Celebrates 100 Years of Yagis
Contest University marks the 100th anniversary of the Yagi-Uda antenna with a free online talk on Saturday, September 19, 2026 at 1600 UTC. No registration is needed; viewers join through a web link.
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Wavelog@DARC erhält Bugfixes im Rahmen der Versionspflege
Wavelog@DARC receives bugfixes in version maintenance
The DARC web logbook, based on Wavelog, moves to version 3.2.2 with fixes for LoTW and DCL uploads and the contest module. It adds a new colour theme, and WaveLogGate also has an updated release.
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Videos from Mastodon
KB6NU shares three videos from Mastodon: a Veritasium explainer on a widely misunderstood design chart, a demo of a deep-learning CW decoder, and a tour of a giant Collins discone antenna.
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Mt Gibraltar, near Mittagong, NSW – SOTA activation 13 Sept 2026
A SOTA activation report from Mt Gibraltar near Mittagong, NSW, on September 13, 2026. The author joined VK1BL, who was with Sydney-area amateurs testing equipment and antennas for microwave bands up to 24 GHz.
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October OSCAR News Now Available
Issue 246 of AMSAT-UK's OSCAR News is available to e-members. Topics include a FUNcube-1 ground station build, LA4O sending voice commands to an ESA spacecraft on 23 cm, and a 70cm preamplifier for satellite reception.
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Amateur Radio Weekly – Issue 438
Issue 438 of the weekly roundup links to an Android APRS client built around conversations, a look at the proposed version 3 of the M17 specification, and the end of an AST SpaceMobile 800 MHz trial with 70cm interference questions.
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BACAR to Launch 17 October
The ZS6SRC high-altitude balloon team seeks ground-station participation for its BACAR-14 Skybridge mission, scheduled to launch on October 17. Radio amateurs, clubs, schools and experimental receiving stations are invited to take part.
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IARU IWS Newsletter August 2026
The August 2026 newsletter of the IARU Intruder Watch Service, which tracks unauthorised signals in amateur bands, is now available.
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HAARP Notice of Transmission
The HAARP research campaign transmits between 2.8 and 10 MHz from September 8 to 11 UTC, with times varying by ionospheric conditions. Reception reports are welcome through an online form.
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ARDC utlyser projektmedel för utveckling av amatörradion
ARDC invites project funding applications for amateur radio development
ARDC, a US foundation funded by the 2019 sale of part of the 44-net address space, invites project grant applications for amateur radio growth, education and research. The next deadline is January 15, 2027.
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Videos: What’s next for POTA, ham radio helps rescue man trapped in cave
A video covers upcoming changes to Parks on the Air. The post also notes a cave rescue in Alberta where QRP-Labs QDX-M transceivers on 2200m and JS8Call reportedly carried text through rock to a trapped man.
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Software Fix Keeps Veritium HFClock Running
N2TBN and AI4Y have published a fix for Veritium HFClock units, which are built on HamClock. It involves opening the case, flashing new firmware and repeating a few setup steps. PDF instructions are available.
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Antennemeet- en Luisterdag Zuidwest-Nederland
Antenna Measurement and Listening Day, South-West Netherlands
VRZA announces an antenna measurement and listening day in south-west Netherlands on 6 September 2026, with Delta Scanner Zeeland attending. Participants use frequency lists and reference guides to find signals, and organizers supply masts, meters and test equipment.
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Wasserturm neues Relais im Großraum Wien
Water Tower Becomes New Repeater in Greater Vienna Area
A new UHF repeater on a water tower in Vienna went into service in March 2026, covering the whole city. It outputs on 438.3375 MHz with 162.2 Hz CTCSS and is expected to support emergency communications.
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Software & Ecosystem: Unlocking the Real Power of PoC Radios
Part two of Radioddity's series on Push-to-Talk over Cellular radios looks at the software, apps, network bridges and connectivity options that let these devices reach beyond traditional RF range.
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Zero Retries Digital Conference (ZRDC) 2026 to Bring Amateur Radio Technology and Innovation to San Ramon
The second Zero Retries Digital Conference takes place on October 16, 2026, in San Ramon, California. It focuses on digital voice and data, software-defined radio, networking and other experimental amateur radio technology, with a look back at 2025 projects.
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Videos from HOPE: Hackers and hams, HERMES, 3d printing
KB6NU shares three talks from the HOPE conference: hackers and hams, HERMES secure long-distance HF data communication from Rhizomatica, and the role of open source in 3D printing.
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The EMF Explorer: A badge for ham radio?
KB6NU builds the EMF Explorer, a simple op-amp circuit with inductor pickup coils that turns nearby electromagnetic emissions into audible sound. A kit is sold by Make magazine, and the author considers it a possible ham radio badge project.
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Kurzbericht 6. EMC-Level 1 Videokonferenz 2026
Short report: 6th EMC Level 1 video conference 2026
The Swiss society summarizes its sixth EMC video conference of 2026, which covered smart meter interference cases, a 137 kHz band fix, ferrite suppression of a solar installation, and IARU Region 1 conference agenda items. The next session is September 29.
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Xiegu G90 Runs HOT: Does the Radioddity G90-H1 Actually Fix It?
A review of the Radioddity G90-H1, a bolt-on stand with a thermostatic fan for the Xiegu G90. During FT8 testing, case temperature fell by roughly 7°C, with fan noise well below conversation level.
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555 Makes a Useful Beat Frequency Oscillator
A build uses a 555 timer chip to make a tunable 455 kHz beat frequency oscillator. Injected into a receiver's IF stage, it lets inexpensive sets demodulate CW and SSB signals.
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FT8 and IOTA - Read Our Latest Knowledge Base Radio Articles
Icom UK adds three articles to its knowledge base. One looks at how FT8 changed HF amateur radio, covering its adoption, technical features, community debate and integration into radios.
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Water to Shore Connectivity: Icom Hybrid LTE and VHF Solutions Power Cowes Week 2026
Icom UK supplied communications for the 200th Cowes Week sailing regatta in early August, using a hybrid of LTE and VHF links between the water and shore. The event drew more than 5,000 competitors on 642 boats.
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Ford F-150 Radio Install – VGC N7600
The author describes installing a VGC N7600 mobile radio in a newly bought 2025 Ford F-150 truck.
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Experimenten en meetactiviteiten voor radioamateurs tijdens de gedeeltelijke zonsverduistering
Experiments and measurement activities for radio amateurs during the partial solar eclipse
Experiments are planned around the partial solar eclipse of 12 August 2026 to study propagation changes. They include an RSGB HF activity on 40 and 80 metres, WSPR and FST4W beacon monitoring, and medium-wave listening tests.