Mechanical TV Broadcasting W9BBH - Leo Hruska, Cedar Rapids, Iowa
In 1928, Leo Hruska built a scanning disk receiver. An article in the Cedar Rapids Sunday Gazette and Republican describes how he received transmissions from the Jenkins station W3XK near Washington, D. C. Jenkins was broadcasting using 48 lines and 15 fps at that time. In Febrary of 1929, Hruska wrote to Jenkins, asking permission to rebroadcasting their signal. Jenkins approved the request, but we don't know if Hruska actually rebroadcast his signal. Later, he began receiving broadcasts from the Western Television (Sanabria) station W9XAO in Chicago, which broadcast using 45 lines, triple interlace, and 15 fps. and in 1931 he began mechanical television broadcasting with the call sign W9BBH.
The above photo was taken at an event, probably in the mid 70s. In the display is a sheet with Hruska's comments on the Western sytem. Information and pictures courtesy of Don Hruska
|
