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Issue 213 of Amateur Radio Weekly
Issue 213 of Amateur Radio Weekly
Amateur Radio Weekly
Issue 213 August 4th, 2018

Top links

ISS packet radio system back late this year
The currently silent packet radio system on the International Space Station could be back on the air by year’s end.
Tutorial: Plot and decode weather balloon data
A radiosonde is a small weather sensor package that is typically attached to a weather balloon. As it rises into the atmosphere it measures parameters such as temperature, humidity, pressure, GPS location etc, and transmits this data back down to a receiver base station using a radio signal.
Edwin Armstrong’s Battle for FM Radio
It is a story of innovation, but also a story of personal vanity, corporate greed, stubbornness, marital problems, and even suicide. The only thing missing is a long-lost identical twin sibling to turn it into a full telenovela.
Hack A Day
Locating Sources Of Noise
As our lives become filled with technology, the likelihood of electronic interference increases. Every lamp dimmer, garage-door opener or other new technical “toy” contributes to the electrical noise around us.
Surrey Amateur Radio Club
Digital nets on 11m
Digital modes (ROS, FT8, SSTV, PSK31) are emerging on 11 meters.
Delta Alfa
Milliwatt DX on 868 MHz
Packets transmitted by the gateway of Ryan Walmsley, member of The Things Network East Coast, Great Yarmouth, was received 235 km away in Utrecht, Netherlands.
Q&A: Summer of Tariffs
Will a 25 percent tariff be material on a single switch purchase costing a few dollars? Of course not. But this helps illustrate that once you start entering into the hundreds and thousands of dollars, these tariffs begin having an impact.
Ruth Willet is 2018 Hiram Percy Maxim Memorial Award recipient
The Hiram Percy Maxim Memorial Award is given annually by the board to a radio amateur under the age of 21 whose accomplishments and contributions to both Amateur Radio and the local community are of an exemplary nature.


QRP vs 20 Watts - What is the Practical Difference?
Running one hour in a contest at 5 watts, and the next hour at 20 watts.
Outdoors On The Air
Flight of the Bumblebees 2018
This is a popular QRP CW amateur radio event. The Bumblebees are portable stations.
Compact Homebrew End Fed QRP Antenna
I built this antenna specifically for low wattage QRP use to be compact and inexpensive. It utilizes a 9:1 unun wrapped on a T106-2 toroid and minimal hardware to be lightweight.

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