Amateur Radio News and Notes Podcast
In the log this week * United States Armed Forces Day Crossband Test Saturday, May 9, 2026 * Dayton Hamvention May 15-17, 2026 * QRPARCI Four Days in May Thursday, May 14, 2026 * MVARC Nets on the Air * What’s happening with DX? * Solar Activity Update * Upcoming Contests * Interesting Online Radio Content As always, links to all referenced content can be found in the show notes, or at our Substack at mvarc.substack.com [https://mvarc.substack.com]. Thanks for reading Amateur Radio News and Notes. Subscribe for free to receive new posts and support my work. United States Armed Forces Day Crossband Test Saturday, May 9, 2026 Saturday brings the Annual Armed Forces Day Crossband Test to the air. The United States Department of Defense runs the event which is open to all licensed amateur radio operators. It is designed to test crossband two-way communications between military stations and radio amateurs as authorized in 47 CFR 97.111. Several military stations at locations around the United States will transmit on military frequencies and will announce the frequencies on the Amateur Radio bands they will monitor. Full details of stations and frequencies can be found at https://www.dodmars.org/mars-comex-information-website/armed-forces-day [https://www.dodmars.org/mars-comex-information-website/armed-forces-day]. Dayton Hamvention May 15-17, 2026 Image courtesy https://www.make-it.ca/hamvention/ [https://www.make-it.ca/hamvention/] Next weekend brings the 2026 edition of the Dayton Hamvention at the Greene County Fair and Expo Center in Xenia, Ohio. Dayton Hamvention is the biggest hamfest in the world with last year’s attendance of 36,814 attendees. Hamvention starts on Friday May 15th, 2026 from 9 AM to 5 PM and continues Saturday 9 AM to 5 PM and Sunday 9 AM to 1 PM. This year’s theme is “Radio Adventure” and as always there will be a ton of vendors, tailgate sellers, and an extensive lineup of forums. Amateur Radio News and Notes will be there again this year to take in the show and report on the latest developments. If you’re going this year and see me definitely say hello. For more information about Dayton Hamvention including lists of vendors and scheduled forums visit https://hamvention.org/ [https://hamvention.org/]. QRPARCI Four Days in May Thursday, May 14, 2026 Image Courtesy https://qrparci.org/ [https://qrparci.org/] Thursday May 14, 2026 brings the 2026 edition of the QRP Amateur Radio Club International’s Four Days in May conference in Fairborn, Ohio. Four Days in May is the preeminent conference relating QRP operation and it is always filled with fascinating talks. This year there is something for everyone with talks about homebrewing, effective QRP operations, the design of the CFT1 radio, learning CW, using amateur radio in the aftermath of Hurricane Helene, vibe coding for amateur radio, building a remote magnetic loop antenna, and developing automatic antenna tuners for the 640 meter, 2200 meter, and 1800 Hz bands. In addition to the talks during the conference, Hans Summers G0UPL or QRP Labs and Ashhar Farhan VU2ESE of HF Signals have evening talks to give announcements. Amateur Radio News and Notes will be on the scene once again this year to keep you in the loop. While the in person registrations are no longer available, the Zoom webinar is still available as we go to press on the QRPARCI site. For more information visit https://qrparci.org/fdim [https://qrparci.org/fdim]. MVARC Nets on the Air * 2 Meter FM Net: Tuesdays at 7 PM [146.655/- MHz (141.3 Hz PL Tone) ] * 2 Meter Digital Net: Immediately Follows 2 Meter FM Net [146.655/- MHz C4FM] * MVARC Slow Speed CW Roundtable: Saturday and Sunday at 7:30 AM [3.565 MHz CW] * MVARC Cherry Tree Net: Saturday and Sunday at 8:30 AM [3.920 MHz LSB] What’s Happening with DX There will be a lot of DX on the air this week. Stations on the air include Rodrigues Island (3B9G), Kenya (54Z/MM0ZBH), Azores (CU2/HB9BIN), South Cook Islands (E51TLM), Burkina Faso (XT2AW), French Polynesia (FO/F6CBW), Galapagos (HD8R), Western Sahara (S09S), Minami Torishima (JG8NQJ/JD1), and Colombia (HK3JCL). A calendar of DXpeditions can be found at https://dxnews.com/calendar/ [https://dxnews.com/calendar/] and at NG3K’s Announced DX Operations List at https://www.ng3k.com/misc/adxo.html [https://www.ng3k.com/misc/adxo.html]. Solar Activity Update As we go to press the Solar Flux Index (SFI) was 117 and the estimated sunspot number was 59 with 4 numbered sunspot regions visible from Earth. Over the last week the SFI has decreased. Solar activity has been at moderate levels in the last 24 hours. The geomagnetic field has been at quiet to unsettled levels in the last 24 hours and the Kp index reached 3 yesterday. The solar wind peaked at 423 km/s. Solar activity is predicted to be at low levels with a chance of M-class flares today through Sunday. The geomagnetic field is forecast to be at quiet to active levels today and Saturday and at quiet to unsettled levels on Sunday. The chance of solar radiation storms at the S1 or greater level is at 1% today through Sunday. R1 to R2 radio blackouts are possible with a predicted probability of 45% today through Sunday. R3 or greater blackouts are possible with a 10% chance predicted today through Sunday. It remains a fantastic time for amateurs to get on the air and work the world. Good sources of real-time solar information include https://www.spaceweatherlive.com/ [https://www.spaceweatherlive.com/] and https://solarham.com/ [https://solarham.com/]. A good overview of conditions can be found at https://dx.qsl.net/propagation/ [https://dx.qsl.net/propagation/]. To see D-layer absorption data and associated radio blackouts, visit https://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap [https://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap]. To see real-time Maximum Usable Frequency (MUF) and Critical Frequency (foF2) information from radiosonde data, visit https://prop.kc2g.com/ [https://prop.kc2g.com/]. Upcoming Contests This weekend brings the Flemish Windmill Contest, the VOLTA WW RTTY Contest, the CQ-M International DX Contest, the SKCC Weekend Sprintathon, the Canadian Praries QSO Party, the 50 MHz Spring Sprint, and the 4 States QRP Second Sunday Sprint. As always the K1USN SSTs, the MSTs, and the CWTs will also be on the air. The full contest calendar with events and exchanges can be found at https://www.contestcalendar.com/weeklycont.php [https://www.contestcalendar.com/weeklycont.php]. Interesting Online Radio Content Caitlin K8FAE and Mike K8MRD have a challenging activation at Okeechobee Battlefield State Park - Kevin W1DED talks to Nick VK9DX about his thoughts on ham radio from Norfolk Island between Australia and New Zealand - Craig KM6LYW looks at the Tidradio TD-H9 for use in digital modes - IMSAI Guy does a 6-part series on understanding filters for RF - Takeshi JS1QIZ goes camping and operates QRP CW in Japan during a contest (in Japanese) - Walt K4OGO tests out the Micro PA50 and Micro PA100 Amps in the field - Michael W8CI tells you what to expect at this year’s Dayton Hamvention - Hayden VK7HH gives his soldering tips for success - Josh KI6NAZ takes the spectrally impure anniversary Baofeng and replaces the radio with a compliant one - Ciprian YO6DXE builds an EFHW antenna with a FT140-43 for QRP operation - Michael KB9VBR experiments with a center loaded vertical modification - Ramon EA5IW takes us to the mountains of Spain for a 2 Watt QRP contact with Belgium - Mike K8MRD makes a beginner friendly DIY HF antenna - Forrest KI7QCF re-activates his first SOTA and announces a CW paddle giveaway - Hans G0UPL shows an improvement to the QMX and QMX+ firmware to improve power supply performance - Bobby W6IWN shows a DIY 3 Element Yagi for portable - Ben VE6SFX shows his new antenna winder design - Tim K5OHY shows different 1/4 wave vertical setups and how to get gain via parasitic elements - That’s it for this week. Best 73, Ed N2EC This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit mvarc.substack.com [https://mvarc.substack.com?utm_medium=podcast&utm_campaign=CTA_1]
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