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QRZ Forums - Amateur Radio News for Thursday 20 December 2012
QRZ Forums - Amateur Radio News
/////////////////////////////////////////// HamRadioNow: High Speed, Low Power Data on UHF; Dynamic Modulation... from the DCC Posted: 19 Dec 2012 07:37 AM PST http://forums.qrz.com/showthread.php...C&goto=newpost HAMRADIONOW.tv Episodes 41 and 42 from the ARRL/TAPR DCC Episode 41: Experimenting with High Speed Wireless Networking in the 420 MHz Band David Bern W2LNX looks into long distance, high-bandwidth digital signals using low-power, off-the-shelf data radios in the 420 MHz band. He uses digital television to generate the wideband signals, and a little lift from some Virginia mountains to extend his line-of-sight. How far do you think these few-hundred milliwatt radios worked to carry several megabits per second? HamRadioNow Episode 42: On-line Alternation of Modulation Techniques using a Dynamic Switch Shashank Gaur and his masters degree classmates from Ecole Centrale d'Electronique in Paris are experimenting with ways to dynamically change digital modulation modes to adapt to changing conditions for maximum throughput, using USRP radios. HamRadioNow The ARRL/TAPR DCCis an annual, three-day conference featuring presentations on a variety of technical and operational aspects of Amateur Radio. This year's DCC, held in Atlanta last September, had 16 of the 45-minute main presentations, the usual Saturday banquet talk, and a four-hour "deep dive" into GNU radio on Sunday. HamRadioNow videotaped all the talks, and we are now releasing them on-line. We'll continue with one or two a week until you have them all. Watch these episodes at our web site, www.HamRadioNow.tv. to support these programs, visit HAMRADIONOW.tv and 'click the pig' |
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