The world of magic had Houdini, who pioneered tricks that are still performed today. And data compression has Jacob Ziv. In 1977, Ziv, working with Abraham Lempel, published the equivalent of Houdini on Magic: a paper in the IEEE Transactions on Information Theory titled “A Universal Algorithm for Sequential Data Compression.” The algorithm described in …
Build a Long-Distance Data Network Using Ham Radio Read More »
A significant part of obtaining and holding an amateur radio license relates to the prevention of radio interference. In the past, this meant interfering with analog TV shows, but as more sophisticated devices become commonplace in homes, this applies to much more. This hit the news in Marion County, Florida, where an amateur radio worker …
The Curious Case Of The Radio Amateur And The Insulin Pump Read More »
John Anderson (AJ7M), from Marysville, Washington on the air from home for the 2020 ARRL Field Day event, held June 27-28. Field Day is ham radio’s largest on-air annual event and demonstration. Photo: John Anderson Will the amateur airwaves fall silent? Since the dawn of radio, amateur operators—hams—have transmitted on tenaciously guarded slices of spectrum. …
Enthusiasts, manufacturers and electronics enthusiasts may be interested in a new Kickstarter campaign launched by Hobby PCB for its RS-HFIQ 5W software-defined radio (SDR) transceiver. Watch the video below to learn more about the RS-HFIQ, which is in the form of a high-performance 5W transceiver with software-defined radio (SDR) for CW, SSB, AM, FM and …
RS-HFIQ Software Defined Radio (SDR) 5W Transceiver Hits Kickstarter (video) Read More »
Hagarty-Solari and her neighbor Judy were never far from each other, but first Judy lost the signal from her cell phone, and then Hagarty-Solars lost hers when she was driving through flames — even though she was in a rag with convertible-because at that moment there was no going back. Not surprisingly, they lost the …
There’s No Better Time to Be an Amateur Radio Geek Read More »
