Ricevitore SDR ARI PG
The active sunspot region that has been giving us improvedpropagation over the past several days will be rotating awayfrom Earth’s view today, but conditions on most of the HFamateur bands should remain pretty decent in the days ahead,as the 10.7-centimeter radio flux remains right around 100.However, NOAA’s Space Weather Prediction Center (SWPC) saysthe geomagnetic field could become unsettled...
ImageOnline marketplace eBay has imposed new restrictions on listings of radio transmitting equipment in response to new FCC rules that took effect this week, but responded to ARRL The National Association for Amateur Radio® that its new policy will not apply to gear that operates exclusively on amateur radio frequencies. The FCC’s rules are intended to use its equipment authorization program t...
Amateur radio operators from Florida’s Santa Rosa, Nassau, Lake, Pinellas, and Leon Counties played an important role in supporting emergency communications efforts during and following Hurricane Isaias, helping ensure that critical communication capabilities remained available throughout the storm.In Santa Rosa County, volunteer amateur radio operators staffed the Emergency Operations Center (...
Look for improved propagation on the upper HF bands, as both thesunspot numbers and 10.7-centimeter radio flux remain near or above100. According to NOAA's Space Weather Prediction Center (SWPC),the increase in activity is being fueled primarily by sunspotRegion 4551, which is described as the largest and most complex ofsix sunspot regions currently visible on the surface of the Sun.Mostly quie...
The 21st annual ARRL Online Auction, sponsored by GigaParts, is open now through October 22. Browse more than 200 items and place your bids!This year’s selection includes gear from QST “Product Review” articles, vintage books, pre-owned equipment, signed original sketches by Salty Walt Hudson, K4OGO, from Salty Walt’s Portable Antenna Sketchbook, and four popular mystery boxes contributed by th...
ARRL The National Association for Amateur Radio® will close our headquarters at 12 PM Eastern time on Friday, October 9, 2026, for a staff event.The ARRL Headquarters lobby and store, as well as W1AW, will be open to visitors from 8 AM to 12 PM EDT. Members are reminded that many transactions may be completed on our website at www.arrl.org. There won’t be any interruptions to the W1AW bulletin ...
Updated Saturday, October 10, 2026 @ 11 AM EDTAs of Saturday morning, October 10, the Hurricane Watch Net remained active on both 14.325 and 7.268 MHz, collecting and forwarding post-storm reports to the National Hurricane Center and assisting with any emergency, priority or outgoing health and welfare traffic. Please keep these frequencies clear. Updated Friday, October 9, 2026 @ 10 AM EDTUpda...
The Hurricane Watch Net (HWN) is closely monitoring Invest 92L, which is expected to become Tropical Storm Isaias in the next 24 hours. According to HWN Manager Bobby Graves, KB5HAV, the potential area of concern for this storm is a wide swath of the Gulf coast, extending from Louisiana to Florida. Graves says there is no HWN activation at this time, but the net will go into operation if offici...
This week, we’re looking at a few antenna projects that might spark some interest for those running VHF/UHF. There's a good bit on J-poles, specifically for 2 meters and dual-band operation, using everything from twin lead to copper pipe. We also have a solid 5/8-wavelength vertical build for 2 meters that avoids loading coils, which is always a plus for efficiency. Beyond the hardware, there's a handy utility for Windows users who need virtual serial ports—something that comes up often when integrating various logging or control software. And for those still honing their CW skills, or just curious, a browser-based Morse code decoder that works from images could be quite useful. These selections touch on practical builds and software tools that can enhance both home station and portable setups.
This week, we've gathered some interesting material for those of you exploring beyond the usual HF fare. There's a good piece on current satellite operations, covering both LEO and GEO birds, which is always something worth revisiting as the constellations evolve. For the portable ops crowd, we’ve got a practical guide to POTA antennas, focusing on field-friendly designs. And if you're looking to get on 10 meters with a minimal footprint, there's a neat build for a vertical antenna using common hardware store parts. Plus, a rigid 6-meter Moxon construction that won't break the bank, and a look at a long-standing DX group.
This week, we’ve pulled together a few items that touch on practical antenna work and some digital modes. There’s a good look at a multi-band portable dipole, something that comes up often for field day or SOTA ops, detailing a switching arrangement for 40 through 15 meters. We also have a piece on building and testing 50 MHz traps, comparing different capacitor types—useful for anyone experimenting with 6-meter antennas. For those running APRS, a comprehensive symbol table is included, which is always handy for interpreting what you see on the map. Finally, we’ve got a mention of open-source firmware for LoRa transceivers and a popular Android application for APRS tracking, both relevant for modern portable and mobile setups.
JTTY brings RTTY-style contest exchanges to WSJT-X 3.2.0-rc1: 127 Hz GFSK, no T/R cycles, N1MM Logger+ support. See specs and suggested frequencies.
The suggested JTTY dial frequencies for every band from 160 m to 2 m, with 14.090 MHz as the initial meeting place. This page covers how to add them to WSJT-X and N1MM Logger+, and is updated whenever the WSJT team revises the list.
Is your ham radio club on our list? We feature thousands of links to amateur radio clubs worldwide. Add your club's link today!
OnAir is a free Software Defined Radio (SDR) receiver application compatible with macOS, Windows, and Linux operating systems. It supports a wide array of digital and analog modes, including digital ... - Listed in Software/Software Defined Radio
SDR-- is a free, open-source SDR application for macOS, Windows, and Linux, enabling users to patch together radio components. - Listed in Software/Software Defined Radio
Announced DX Operations
