An Introduction to Radio Experimentation, Technology, and History

  Рет қаралды 26,301

MIT Film & Video Production club

MIT Film & Video Production club

5 жыл бұрын

Philip Erickson
MIT Haystack Observatory
Dr. Philip J. Erickson, W1PJE, is an assistant director and head of the Atmospheric and Geospace Sciences group at Haystack Observatory, operated by Massachusetts Institute of Technology (MIT). Since the late 1950s, MIT Haystack, located in Westford, MA, has used radio science to conduct frontier research into the properties of the near-Earth space environment, including the ionosphere, neutral atmosphere, overlying plasmasphere, and the magnetosphere that surrounds our planet. Dr. Erickson is a licensed Extra class amateur and a member of ARRL, RSGB, the Nashoba Valley Amateur Radio Club (NVARC), and the HamSCI initiative. He holds B.S. and Ph.D. degrees in electrical engineering and space plasma physics from Cornell University and is a member of both the American Geophysical Union and the International Radio Science Union. Dr. Erickson is the lead principal investigator of a National Science Foundation sponsored UHF megawatt class ionospheric radar at MIT Haystack, and has authored or co-authored 75+ refereed articles in the areas of ionospheric and magnetospheric phenomena and radio physics. Dr. Erickson started his radio career with a random wire and a Hallicrafters SX-110 receiver, and enjoys 6 meter and HF propagation, QRP, EME, RF design, and digital weak signal modes.
To find out more about Student Cable Video Productions and how you can participate, visit: sctv.mit.edu
MIT Student Cable

Пікірлер: 22
@itsevilbert
@itsevilbert 5 жыл бұрын
Instant thumbs up for using kilometre.
@acestudioscouk-Ace-G0ACE
@acestudioscouk-Ace-G0ACE 3 жыл бұрын
These lectures are a great resource. Thanks so much for putting them up on KZfaq.
@thesydmc
@thesydmc 2 жыл бұрын
Love the enthusiasm and reference to hams.
@fjs1111
@fjs1111 Жыл бұрын
Dr. Erickson thank you!
@MitchPlehn
@MitchPlehn 5 жыл бұрын
Great Vid! Thank you for making this available to the public; learned a ton.
@x-rockfm92hd81
@x-rockfm92hd81 2 жыл бұрын
THANKS MIT VIDEO & FILM!
@usuthu65
@usuthu65 4 жыл бұрын
Erratum #1 (many thanks to Frank Donovan W3LPL): Marconi's 1901 experiment involved one way transmissions at approximately 500 kHz from Poldhu, Cornwall to his rudimentary receiver in St. Johns, Newfoundland. And Clifden was not a continuation of his experiments, it was Marconi's first successful commercial radiotelegraph operational capability that began initial 24x7 operations in 1907.
@usuthu65
@usuthu65 4 жыл бұрын
Erratum #2 (many thanks to John Ackermann N8UR): Use of live music / orchestras in the early days of radio wasn't due to the technology as much as it was copyright and economics. The phonograph companies were afraid radio would put them out of business, so they refused to license broadcasters to play their records. That led to the live radio orchestras. Later the compulsory license system was introduced and the record industry had ASCAP and BMI as engines to collect royalties, so broadcasting records became OK. But that caused the unionized studio musicians to fight against the stations playing recorded music, because they wanted to preserve their jobs. The stations couldn't win.
@spankedbywife1018
@spankedbywife1018 3 жыл бұрын
in the future, Would you please consider making the slides full screen or nearly full screen and put the speaker in a box in the corner? It should be an unspoken need but ill politely remind the individual doing the video builds here. When rendering these types of videos where a speaker and PowerPoint or any kind of slide source is present and real info is being presented. I can't imagine how others are reading the slides. I sure cant very easily. Thanks. And a great run of videos in this collection, except for the one very important detail overlooked, not being able to take away all the info that was intended by teasing us with the slides but not giving a download link for the slides or by not building better video post productions.
@mikemcdonald5147
@mikemcdonald5147 Жыл бұрын
lol this guys voice at the intro is awesome LOL
@scottstensland
@scottstensland 3 жыл бұрын
it goes without saying but Please on future productions make the slides populate the entire screen then overlay if desired the speaker in a corner D'oh ... as is its impossible to read most slides
@charleswoods2996
@charleswoods2996 2 жыл бұрын
(A li'l Amateur Radio and all related History lol maybe), "The Man In The Moon", is now the CB operator down the street with a crappy linear amplifier between modulation resistor stripped radio and the wide banded incorrectly grounded wide banded antenna, probably and Antron 99. KD8EFQ/73
@jeff2424
@jeff2424 5 жыл бұрын
Starts at 6:30
@jonathanpopham5483
@jonathanpopham5483 4 жыл бұрын
wizardry
@h7opolo
@h7opolo 4 ай бұрын
6:19, 43:50 37
@gabehcuodsuoitneterp203
@gabehcuodsuoitneterp203 2 жыл бұрын
Introduction?
@steemglobal8011
@steemglobal8011 Жыл бұрын
lol, Not sure why they were applauding moon bounces.. That is entry level HAM stuff. lol
@omegadroidzero
@omegadroidzero 4 ай бұрын
Not sure why you need to try and feel superior in KZfaq comments.... maybe get a dog? It is clearly in intro class, you miserable twat-waffle
@johnnywilliams2641
@johnnywilliams2641 3 ай бұрын
"This is what you call an rtl dongle. eight bucks on ebay." --- This is exactly how adversarial malware is spread sneaker net style right through our most important institutions. I hope he doesn't do any work for our Gov't.
@redsky1433
@redsky1433 Жыл бұрын
Interesting lecture but spoiled by ill mannered students who come and go as they please. I don't know how the lecturer is able to keep his cool.
@mikefromflorida8357
@mikefromflorida8357 2 жыл бұрын
Stop using metric system.
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