Interesting information.
June-August 1894. Oliver Lodge demonstrated the transmission of a radio signal (using Morse code) over 40 meters. However, the device was not reliable enough. Lodge did not further develop his experiments. To some extent, he was the first, not Popov and Marconi. http://collection.sciencemuseum.org.uk/objects/co35266/hertzian-oscillator-1890-1894-scientific-equipment
April 1895 (8 months later) A. Popov demonstrated a test protocol of a device receiving radio waves. http://www.museum.ru/C6571
March 1896 (a year later) A. Popov demonstrated the world’s first radio transmission and reception of meaningful text from one building to another over a distance of about 250 m.
September 1896. Marconi conducted his first public demonstration of his receiver and transmitter on Salisbury Plain, achieving transmission of radiograms over a distance of 3 km.
A year later, Tesla was already demonstrating transmission over 30 km.
This relates to the questions of “who was first” and “how science works”
More interesting topics related:
https://teslaresearch.jimdo.com/invention-of-radio/
http://ra4a.narod.ru/magazin/popov.htm
http://www.aif.ru/society/history/poymay_volnu_esli_smozhesh_kak_popov_i_markoni_izobretali_radio
Hi, I'm Rauf Aliev. 