David AD8Y, Kristina KD8OXT and Nathaniel KB1QHX traveled to Boston this January to present a lecture on modulation as part of the Independent Activity Period series on radio science presented by the MIT amateur radio club, W1MX. The handout from the lecture can be downloaded here.
We visited W1MX’s radome on the roof of the Green Building:
Daniel Sheen, KC1EPN, gives students a tour of the Green Building shack and antenna farm after a lecture.
Nathaniel KB1QHX, Kristina KD8OXT, and Daniel KC1EPN, at the companion antenna farm on the Walker Memorial Building.
David AD8Y, preparing for the lecture.
Nathaniel KB1QHX, with Linn W. Hobbs, former materials science professor at CWRU.
We also made time to take in some other MIT sights, including the MIT Electronics Research Society…
…the MIT Hobby Shop….
…and the lab of Dr. Harold Edgerton.
Many thanks to W1MX for inviting us, especially Daniel Sheen KC1EPN. It was a great visit!
W8EDU appears twice in this week’s ARRL letter: Once for HamSCI (Registration’s open now!) and once for our lectures at MIT last Wednesday (review post coming soon): http://www.arrl.org/arrlletter?issue=2019-01-10
W8EDU is in Boston this week giving a presentation for our friends at W1MX as part of MIT’s Independent Activities Period.
Here’s a livestream of Dr. Phil Erickson’s talk, “An Introduction to Radio Experimentation, Technology, and History”: https://www.youtube.com/watch?v=rWuLy0IMScM
Here’s the program: http://student.mit.edu/iap/ns313.html
Tune in tomorrow at 5:30 for our talk on Fourier transforms and witchcraft!
Know ye of CARC: Our very own KE8HVW took first place among new contesters in the Youth on the Air QSO Party. Yasher koach!
Results here: https://yarc.world/announcements/contests/2019/01/01/yarcqp-winter18-results/
73 from the amateur radio display at the Deutsches Technikmusem in Berlin!
Registration for the 2019 HamSCI workshop is now live!
Details on the workshop can be found at http://hamsci.org/hamsci-workshop-2019
We were delighted to receive this Sweepstakes QSL card from club alumna Paula Van Rooy KD9GYF, now at Los Alamos National Laboratory.
Consider donating to W8EDU for Giving Tuesday.
Three simple steps:
1) Click this link: https://www.givecampus.com/snlrle
2) Designate your donation as “Other” and type in “Case Amateur Radio Club (W8EDU)”.
Every inch helps fund equipment, classes and conferences to help our students become better hams and better engineers. You can read about our projects at w8edu.wordpress.com.
We at W8EDU are very excited to announce that we’ll be hosting the 2019 HamSCI (Ham Radio Science Citizen Investigation) Conference here at Case Western Reserve University. Save the date, and keep an eye on http://www.hamsci.com for news and updates.
Here’s a plot of the error between the measured frequency of WWV and a temperature controlled crystal oscillator (not NIST-traceable, but temperature stable and verified within 200 MHz). WWV transmits a clock frequency, set by a cesium fountain (a bank of cesium clocks), which is accurate to within 1 part in 10^16. We receive the transmission here in Cleveland, via several ionospheric hops, and the path length changes with time and space weather. We can see these changes in path length by measuring the difference between the received clock from WWV and our local oscillator. When we plot it clearly shows sunrise and sunset here and in Colorado. Graph by Skylar KD9JPX.