Tag: experimenters

HAARP Experiments to Get Under Way on February 20 UTC, Reports Invited

On February 20 (UTC), Alaska’s High Frequency Active Auroral Research Program (HAARP) will launch its first scientific research campaign since the facility was taken over by the University of Alaska Fairbanks (UAF) Geophysical Institute 18 months ago. UAF Space Physics Group Assistant Research Professor Chris Fallen, KL3WX, reports that he will be ready to go […]

via HACKADAY: A Lightweight Two Metre Carbon Fibre Yagi Antenna

If you’ve ever cast your eye towards the rooftops, you’ll be familiar with the Yagi antenna. A dipole radiator with a reflector and a series of passive director elements in front of it, you’ll find them in all fields of radio including in a lot of cases the TV antenna on your rooftop. In the […]

ARRL Reintroduces a Popular Classic — Experimental Methods in RF Design

ARRL has reintroduced the popular title Experimental Methods in RF Design as a classic reprint edition. Immerse yourself in the communications experience. Build equipment while understanding basic concepts and circuits. “This is a…classic, extremely good text on designing circuits for the ham,” ARRL Life Member Bob De Varney, W1ICW, a professional radio communication technician and […]

HamSCI Members Showcase Amateur Radio-Related Research at AGU Fall Meeting

Ham Radio Science Citizen Investigation (HamSCI) scientists were among those taking part in the fall meeting of the American Geophysical Union (AGU) in San Francisco earlier this month. The December 11-17 gathering, which attracted some 24,000 geoscientists, offered an opportunity for HamSCI scientists to present Amateur Radio-based research, discuss possibilities for upcoming experiments, and network […]

via HACKADAY: Old Heatsink Lets Ham Push Duty Cycle for Digital Modes

Listen to the amateur radio bands long enough, and you’ll likely come to the conclusion that hams never stop talking. Of course it only seems that way, and the duty cycle for a transmitter operating in one of the voice modes is likely to be pretty low. But digital modes can up the duty cycle […]

via the RSGB: New terahertz band NoV

Frequencies above 275 GHz, the terahertz bands, are a new area for experimentation and propagation research. Ofcom have generously enabled low-power NoV access for Full licensees in order to facilitate innovation at the cutting edge of RF technology. The NoV includes a number of conditions related to frequency bands, and protection zones around key UK […]

via HACKADAY: Books You Should Read: Instruments Of Amplification

Psst… Wanna make a canning jar diode? A tennis ball triode? How about a semiconductor transistor? Or do you just enjoy sitting back and following along an interesting narrative of something being made, while picking up a wealth of background, tips and sparking all sorts of ideas? In my case I wanted to make a […]

ARRL 600 Meter Experiment Reports 202,400+ Hours of Operation, Zero Interference Complaints

The ARRL 600 Meter Experiment under the WD2XSH Part 5 Experimental license reports that no interference complaints have been received from other services operating in the 465-515 kHz band over the course of more than 202,400 hours of operation, nor was interference from other operations an issue for any of the experiment’s participants. That statistic […]

When everything else fails, amateur radio will still be there—and thriving

It’s a good time to be technical. Maker communities are thriving around the world, tools and materials to create and adapt are cheaper and more powerful now than ever, and open source hardware, software, and information mean that if you can think it, you can learn how to do it and then make it happen. […]

Girls launch then track balloon that soars over 21 miles above the earth (Utah)

The countdown started at approximately 8:40 Saturday morning in Nibley. The Federal Aviation Association was contacted, the strings and streamers were attached, and when the countdown reached zero a massive helium balloon lifted into the sky with three small boxes attached to it. “Now we’ve got to go track it and retrieve it!” exclaimed and […]

VLF, LF, MF Experimenters Will Transmit ARRL Field Day Greetings

Members of the Experimental VLF, LF, and MF community again will be reaching out to Amateur Radio operators taking part in ARRL Field Day, June 25-26. A number of Experimental (Part 5) licensees — nearly all of them radio amateurs — have been plying the depths of the radio spectrum as the ham radio community […]

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