The ARRL Letter, October 23, 2014


A Century of Amateur Radio and the ARRL

A first took place on Space Shuttle mission STS-37. SAREX (Shuttle Amateur Radio EXperiment) provided live communication from the shuttle into many school classrooms to teach the students about space exploration and Amateur Radio.

In July 1991, N6CA and KH6HME set a new record on 3456 MHz between California and Hawaii. Each was running 5 W to a 4-foot dish.

In 1992, after 8 years as ARRL President, Larry Price, W4RA, declined to run for re-election. The League’s Board of Directors subsequently chose him as the next International Affairs Vice President, which provides liaison with the IARU, which Price served as Secretary. George Wilson, W4OYI, succeeded Price as ARRL President.

N7FKI and W7ZOI reported in the March 1992 QST that they had built a one-transistor 10 meter CW transmitter and made contacts with it using lemon power — essentially a cell made by inserting appropriate electrodes into a lemon. If life gives you lemons, make contacts!

During the early 1990s, interest in digital communication grew, and QST published many articles on the subject that helped fan the flames. Also, hams became interested in the old concept of direct-conversion receivers. KK7B presented one of the best in the August 1992 issue of QST. Another old receiver circuit was also revived — the regenerative receiver. WJ1Z described one for 40 meters in the September 1992 issue of QST.

By the early 1990s, digital signal processing (DSP) had made its appearance, and had begun to be used by both homebrewing hams and equipment manufacturers.

A September 1992 QST article, “ABC: The First Electronic Digital Computer,” recounted the fascinating tale of the first real computer, the Atanasoff-Berry computer — a vacuum tube device — designed in 1939 and 1940 by university professor John Atanasoff and built by electrical engineering student Clifford Berry, W9TIJ. — Al Brogdon, W1AB

via The ARRL Letter, October 23, 2014.

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Another installment of Al Brogdon’s (W1AB) “A Century of Amateur Radio and the ARRL.”  In this segment of the popular historical series, Al recounts some of the developments produced in the 1990s, including the first SAREX (STS-37) mission involving the Space Shuttle and school classrooms on Earth, the advent of digital signal processing (DSP), and a return to some classic regenerative and direct conversion receivers.  Great series.

For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks to The ARRL Letter, 23 October 2014, for the information.

Aloha es 73 de Russ (KH6JRM).

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