Use in Ham Radio
In most countries, hams are required to periodically identify their amateur-TV transmission. They frequently overlay their callsign on the signal instead of placing a card in the background. Most hams use for this purpose homebuilt devices or old consumer character generators. Only rarely one can see real graphics, as the callsign is usually written in the "OSD font".
Read more about this topic: Digital On-screen Graphic
Famous quotes containing the words ham and/or radio:
“We had some ham and eggs and took our time saying goodbye to the bright lights.”
—Stanley Kubrick (b. 1928)
“We spend all day broadcasting on the radio and TV telling people back home what’s happening here. And we learn what’s happening here by spending all day monitoring the radio and TV broadcasts from back home.”
—P.J. (Patrick Jake)