In 1900 he received a college and traveling scholarship, and visited engineering works in Belgium, England, and France.

He came to England in connection with the Willesden Electricity Supply Station, and was later appointed chief engineer to Crompton and Company in Chelmsford.

In 1911 he became manager of Hochfrequenz-Maschinen Aktiengesellschaft für drahtlose Telegraphie (HOMAG) in Berlin, a company formed to promote his radio inventions.

These were manufactured by the HOMAG company for use in high power longwave radio stations conducting intercontinental radiotelegraph traffic.

Large 100-kilowatt Goldschmidt transmitters in Eilvese, Germany and Tuckerton, New Jersey, USA were used in the first direct communications link between Germany and the United States, which was inaugurated on 19 June 1914 with a ceremonial exchange of telegrams between Kaiser Wilhelm II and President Woodrow Wilson.

However, the unmodulated signals produced by early continuous wave (also known as "undamped") transmitters like the Goldschmidt alternator were inaudible in receivers designed for reception of spark transmissions.