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eHam.net News
/////////////////////////////////////////// RSGB: VDSL Interference: Posted: 10 Jan 2017 04:43 PM PST http://www.eham.net/articles/38393 The RSGB's Electromagnetic Compatibility Committee (EMCC) has worked with BT Technology Services and Operations and also Openreach to design a new process to improve the way multiple line checks are done. This can only be used where the EMCC has received reports from amateurs that it checks and believes are caused by VDSL RFI. In these cases, lines in the near vicinity of the complainant can be checked remotely to see if they exhibit line faults that may increase VDSL RFI problems. If metallic line faults are identified, Openreach will then take steps to fix them. /////////////////////////////////////////// How Australian Town Helped a Doomed Plane Win History's Greatest Air Race: Posted: 10 Jan 2017 04:42 PM PST http://www.eham.net/articles/38392 Lost in a thunderstorm over southeastern Australia, Captain R.D. Parmentier and his crew were desperately trying to find a place to land the big DC2 airliner. They were just a few hundred kilometres from the finish of an epic 18,000km race from London to Melbourne and the storm had rendered their communications equipment useless. While radio operators on the ground tried in vain to reach the aircraft, a mayor in a small town had an idea as bright as the lightning flashing in the sky. He dialled up the city's engineer and asked him to toggle the city's lights in morse code to spell out a message: A-L-B-U-R-Y. The town's name. /////////////////////////////////////////// Ham Talk Live #47 -- D-STAR Setup: Posted: 10 Jan 2017 04:43 PM PST http://www.eham.net/articles/38391 Have a D-STAR rig and have no idea how to use it? Tune in Thursday night at 9 PM Eastern time when John Davis, WB4QDX joins us to talk about how to setup a D-STAR rig and take your questions LIVE! /////////////////////////////////////////// A New Way to Compare HF Antennas: Posted: 10 Jan 2017 04:46 PM PST http://www.eham.net/articles/38389 Testing HF antennas is a tricky thing to do. Simple on-air test are seldom conclusive and are more often than not, they are just plain confusing. SOTABEAMS has come up with a completely new way to test antennas, locations and to monitor propagation using the WSPR system. |
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