July 2022 TSM

Price: $3.00

Lesser Known Early Radio Engineers and Scientists

By John Schneider W9FGH

Most radio and electronics enthusiasts know the big names: Marconi, de Forest, Armstrong, Tesla, Fessenden and others. John takes a look at a few who made big contributions to the science of broadcasting and electronics in comparative obscurity. Among them are those whose work added to the development of national radio networks, VHF communications and audio fidelity, among many other broadcasting aspects taken for granted today. 


The Zenith Trans-Oceanics and Model T600 Portables

By Rich Post KB8TAD

The Trans-Oceanic portable radio was a result of the needs of Zenith CEO Eugene McDonald, Jr. for use aboard his Great Lakes yacht Mispah, which McDonald used as his home in Chicago and a floating laboratory when on Lake Michigan. Rich notes these were “the most popular of the three-way powered multiband broadcast and shortwave radios of the vacuum tube era.” These radios were in demand by explorers and international travelers who wanted to tune in the world from remote locations.


The First Lady of Radio: Mary Texanna Loomis

By Scott Caldwell

Early electronics was a male domain—to break through would take a one-of-a-kind woman. With her link to one of the earliest wireless pioneers, Mary Texanna Loomis was just the woman for the job. Arriving in Washington, DC, in 1917 she realized there was a great need for radio operators and radio repairmen. So, she established the Loomis Radio School where she taught her students out of her own textbook, “Radio Theory and Operating.” For the first ten years the school prospered—then came the Great Depression.


Time Measurement and Radio (Part Two)

By Georg Wiessala

In his second installment, Georg examines the need for time signal stations, the history of such installations and how you can get the most from receiving their seemingly monotonous signal. You’ll get an introduction to the best equipment—receivers and antennas—and an introduction to the most precise clocks on the planet. There’s far more to these stations that are found from VLF to HF frequencies than ticks and beeps. 


Book Reviews: Codebreaking and Signal Corps Vehicles

By Ken Reitz KS4ZR

Two new titles look back at radio during World War II: “The Secret Life of an American Codebreaker” and “US Army Signal Corps Vehicles 1941-45.” The first book traces the path of a 19-year-old American woman from her comfortable life as a college student to one of a few specialists trained to decipher enemy messages. The second book looks at the vehicles used by the US Army Signal Corps that became vital ears and eyes in the war effort.


Scanning America

By Dan Veeneman

Scanning Napa Valley, California


Federal Wavelengths

By Chris Parris

Federal Disaster Frequencies



By Larry Van Horn N5FPW

E-4B Aircraft Serve as National Airborne Operations Center (NAOC)


Utility Planet

By Hugh Stegman

Kiwi SDR Adds “Aussie Selcall”


Shortwave Utility Logs

By Mike Chace-Ortiz and Hugh Stegman


The World of Shortwave Listening

By Valter Aguiar

100 Years of Brazil Broadcasting; Other South American Radio News


The Shortwave Listener

By Fred Waterer

New Music, Indie Music on Shortwave


Radio 101

By Ken Reitz KS4ZR

Streaming International TV and Radio with a Stick


Medium Wave DX

By Loyd Van Horn K4LVH

North and South American Countries You Might Hear Tonight on Medium Wave!


Adventures in Radio Restoration

By Rich Post KB8TAD

A Tale of Two EXs: The Meissner Signal Shifter


Antenna Connections

By Robert Gulley K4PKM

The Beverage Antenna


Digitally Speaking

By Cory GB Sickles WA3UVV

Hamvention 2022 Takeaways


Amateur Radio Insights

By Kirk Kleinschmidt NT0Z

Inspiring Old-Timers


VHF and Above

By Joe Lynch N6CL

Icom’s SHF Project Creates a Buzz at Hamvention

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