Category: Newer Articles

The amazing history of 73 and other prosigns

An Amazing History of 73 and Other Prosigns

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Spread the love  2    2SharesGlen Zook, K9STH, posted this article about 73 to the Heathkit mailing list: Many amateurs already know that “73” is from what is known as the “Phillips Code”, a series of numeric messages conceived for the purpose of cutting down transmission time on the old land telegraph systems when sending text that is…

Ferrell N4FRL Explains Loading the User Contact List on the TYT MD-UV 380/ 390

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Spread the love       Article submitted by Ferrell N4FRL You will need to be running Windows and Microsoft Office 2007 – 2013 to use these instruction. We are currently looking for a Linux solution other than Virtual Box I start off most of the time with a clean exported contact spreadsheet generated from the CPS. Click on…

Voice Communications — ITU Phonetics, WHY?

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Spread the love       Adapted from an original article by D. W. Thorne, K6SOJ From the earliest days of radiotelephone communications, several different “official” phonetic alphabets have been used. During WW II the British used one version, while the U.S. had another. Other forces had yet even different phonetic alphabets. The use of ITU phonetics in both…

simple groundplane

By Richard Humphrey

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Spread the love       HOW TO BREAK THE 10-WORDS-PER-MINUTE CODE BARRIERBy Richard Humphrey When this article was first published in 1974, the best Morse-Code-learning aids available to hams were the Instructograph paper-tape-based machine, phonograph records, and magnetic tapes (open-reel and cassette – I’m not aware of anything on 8-Track). Nowadays, we have software-based and standalone electronic aids,…