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July—August 2021 The Communicator The July—August 2021 A Publication Of Surrey Amateur Radio Communications July - August 2021 | The Communicator DEPARTMENTS The rest of the story 4 Emergency comms around the globe 9 News you can lose —Ham humour 13 Radio Ramblings 14 PUBLICATION CONTACTS Tech topics 23, 26, 29 COMMUNICATOR John Schouten VE7TI 2-meters 34 & BLOG EDITOR communicator at ve7sar.net Solder Splatter 39 SARC TELEPHONE (604) 802-1825 CORRESPONDENCE 12144 - 57A Avenue Measurements with the Nano VNA 45 Surrey, BC V3X 2S3 SARC at ve7sar.net VE7SL’s Notebook 62 CONTRIBUTING John Brodie VA7XB EDITORS Kevin McQuiggin VE7ZD/KN7Q Foundations of Amateur Radio 68 Back To Basics 74 SARC & SEPAR News 86-106 QRT 107 IN THIS ISSUE The Communicator is a publication of Surrey Amateur Radio Communications. It appears bi-monthly, on odd-numbered months, for Radio Ramblings—Kevin writes area Amateur Radio operators and beyond, to enhance the exchange of information and to promote ham radio about his current projects activity. During non-publication months we encourage you to visit the Digital Communicator at ve7sar.blogspot.ca, which includes recent news, past issues of The Communicator, our history, photos, videos and other A shack or Grab ‘n Go information. battery power supply To subscribe, unsubscribe or change your address for e-mail delivery of this newsletter, notify communicator @ ve7sar.net Regular readers who are not SARC members are invited to contribute a $5 annual donation towards our Field Measurements with the Day fund via PayPal. NanoVNA—Part 3 SARC maintains a website at www.ve7sar.net 2 | July - August 2021 The Communicator QRM qrm ...from the Editor’s Shack Do you have a photo or bit of Ham news to share? An Interesting link? Something to sell or something you are looking for? On the Web eMail it to communicator at ve7sar.net for inclusion in this publication. ve7sar.net Between newsletters, watch Well another Amateur Radio season The extent of COVID requirements at your e-mail for news, is drawing to a close. It has been the time will dictate how ‘informal’ announcements of Amateur unusual in that we have not been we can get. Radio events, monthly able to meet in person for 16 months meetings and training but there seems to be some light at Your Directors have decided that we opportunities. the end of the tunnel. Hopefully its will have a presence at the OTC on not a train as some have predicted Saturday mornings going forward, so Click the links below to that COVID variants pose a threat for drop by if you like. In the planning is follow our presence on the some time to come. a trunk sale at the OTC. The trunk web and social media: sale will be an opportunity to bring Here in British Columbia we are on your good used gear to find a new SARC Blog track for a re-opening and an home to potential buyers, especially ve7sar.blogspot.ca ‘almost back to normal’ by Labour the recent course grads. Saturday, Day on September 6th. If that September 4 has been suggested as Twitter prediction holds true, we will the sale date for members only and @ve7sar resume in-person meetings, it would be opened up to the ham classroom Basic and CW courses. Our community in general on the FaceBook Saturday morning Koffee Klatch is following Saturday, September 10th. SurreyAmateurRadio back now at Denny’s Restaurant, Our YouTube Channel 6850 King George Blvd., Surrey. Enjoy this summer, it is certainly There will be an opportunity on our starting out hot for us locally. See SurreyARC you in the September issue. regular July and August meeting SARC Photo Albums nights to get Web Albums together at the 73, OTC for an ~ John VE7TI, Editor or informal session. [email protected] tinyurl.com/SARCphoto This Month’s Issue… Field Day 2021 was a success thanks to the SARC and SEPAR volunteers that made it happen. COVID restrictions and record high temperatures made it a reral challenge this year but we fielded two group stations. Communication works for those who work at it.—John Powell July - August 2021 | 3 The Communicator The Rest Of The Story… The story of Zenith radio Eugene F. McDonald (1886–1958) speculative business of a friend of founded Zenith Radio in 1921, a his who wished to manufacture an major American radio and automobile self-starter. The electronics manufacturer for most business did not succeed and of the twentieth century. McDonald lost his investment. In 1911, he was in partnership in Early life Detroit selling used cars, and by the Eugene F. McDonald Jr. was born end of 1912 had begun a credit March 11, 1886 in Syracuse, New finance company for the purchase York, the son of Frazier McDonald of new and used cars, a commodity and Betty May Thompson McDonald. that had previously not been He earned his first money while a available on credit. He was the first schoolboy by reading electric to offer working people a payment meters. School did not appeal to plan for the purchase of an McDonald, and at the end of his automobile. sophomore year in high school he left school to take a factory job Military service with the Franklin Automobile Company. When the United States entered Eugene F. World War I in 1917, he enlisted in McDonald Moving to Chicago in 1904, he the Naval intelligence service and became an automobile salesman eventually became a lieutenant with the Franklin Auto Company commander. His commission came and, as a publicity stunt, once about as he understood the drove a car up the steps of the operation a device used in the Navy General John Logan Memorial in for recording radio and telephone Grant Park—with a photographer conversations – the 'telegraphone' – present and a policeman there to and the manufacturer was no longer arrest him. He paid the policeman in business. He remained in the $10 for the arrest. In 1904, he service until 1919 but continued began working for the company in service in the U.S.N.R.F. (US Naval Syracuse. He quickly rose in the Reserve Forces) until 1939. He kept sales and promotion areas and the title of lieutenant commander made a name for himself. In 1910, for the rest of his life, having he moved back to Chicago to join a retired at the rank from the USNR. 4 | July - August 2021 The Communicator Founding of Zenith Radio Corporation Armstrong license but lacked funds for He joined with Ralph Matthews and Karl expansion to meet Hassel, the three of them incorporating the demands of the Zenith Corporation (formerly Chicago their order book. Radio Labs) in 1923. From the call letters of their amateur station, 9ZN, they McDonald was developed the trade name of ZN-th. The appointed general company survived the Great Depression manager and the and was soon the leader of radio partnership was manufacturers. At the same time McDonald formally launched a career as an explorer and incorporated in adventurer that publicized the Zenith 1923 as the Zenith The Zenith 7G605 Trans-Oceanic Clipper products and sent sales to new records. Radio Corporation. 1941-1942 By 1927, the He formed and was the first president of company was large enough to secure its the National Association of Broadcasters own RCA manufacturing license. McDonald and pioneered the development of the was well known for his charismatic short-wave radio. When Donald B. leadership style, and his unexpected death MacMillan made his Arctic trip he was in 1958 reportedly "left a void of talent at equipped with transmitters and receivers the top" of the company. supplied by the Zenith Corporation. “He expanded the radio medium into international communications, ship-to- Brief summary shore, radar, and VHF and UHF television.” Eugene McDonald, besides being a hard- The company slogan was: “The quality driving and demanding CEO, was also a goes in before the name goes on." yachtsman. His yacht the Mizpah (AKA USS Mizpah (PY-29)) was one of the largest in The Zenith Corporation was a great the Great Lakes region. Toward the end of company and a good example to others. 1939 the interest in the war in Europe During the Great Depression, Zenith increased. McDonald had poor reception of employees took less pay and worked longer any regional broadcast aboard the Mizpah hours to keep the company alive. As the and suggested that a portable radio be economy improved, Comdr. McDonald produced that could receive not only rewarded them with additional shares in standard broadcast (AM radio) but higher- the company and a larger portion of its frequency shortwave broadcast to receive profits. international broadcasts that use radio frequencies that could bounce off the He became interested in the radio business Earth's ionosphere (upper atmosphere) and in 1920 upon learning that there was travel great distances. money to be made in it. However, it was necessary to hold a manufacturing license One of the big obstacles to design such a from Edwin Armstrong - and issuance of radio was that vacuum tubes in the 1930s these had been suspended indefinitely. and 1940s had trouble operating at higher However, in 1921 he entered into a frequencies using battery power supplies partnership with the founders of the which were lower voltage than AC- Chicago Radio Laboratory, Karl Hassel, and operated designs. In late 1941 after many Ralph Matthews. Under the tradename "Z- rejects by McDonald (who personally did nith", this company held a valuable the testing on his yacht). Zenith Radio July - August 2021 | 5 The Communicator engineers This was McDonald's last major Gustaffson, involvement with Zenith as he died the Passow, Striker following year.
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