Charles David "Doc" Herrold (November 16, 1875 – July 1, 1948) was an American inventor and pioneer radio broadcaster, who began experimenting with audio...

Herrold is a surname of Anglo-Saxon origin, meaning "love of the army". Notable people with the surname include: Charles Herrold (1875-1948), American...

States still in existence, KCBS (AM) (740 kHz), founded by engineer Charles Herrold in 1909. As the home of Silicon Valley, the Bay Area is also a technologically...

major site of United States Navy research and technology. In 1909, Charles Herrold started the first radio station in the United States with regularly...

San Jose, in early December 1921. However, the original licensee, Charles Herrold, had begun making audio radio transmissions in 1909, as part of an...

it stands three stories with approximately 160 rooms. In 1909, Dr. Charles Herrold began experimental radio broadcasts in downtown San Jose. His station...

January 2020. Retrieved 28 April 2020. "Bay Area Radio Museum: The Charles Herrold Story". 12 August 2014. "U.S. Economic Development Administration:...

to larger audiences. Charles Herrold started broadcasting in California in 1909 and was carrying audio by the next year. (Herrold's station eventually became...

of narrowcasting came from broadcasting. In the early 20th century, Charles Herrold designated radio transmissions meant for a single receiver, distinguished...

conducted by Fessenden, Valdemar Poulsen, Ernst Ruhmer, Quirino Majorana, Charles Herrold, and Lee de Forest, were hampered by the lack of a technology for amplification...

voice and music by 1906. Charles "Doc" Herrold of San Jose, California sent out broadcasts as early as April 1909 from his Herrold School electronics institute...

for Diffie-Hellman-Merkle public key exchange, Marconi Prize winner Charles Herrold, creator of the first radio station in the world Ted Hoff (Ph.D. 1962)...

radiotelephone research included Ernst Ruhmer, Quirino Majorana, Charles "Doc" Herrold, and Lee de Forest. Advances in vacuum tube technology (called "valves"...

earliest known example of this practice occurred in July 1912, when Charles Herrold in San Jose, California began making weekly radio broadcasts from his...

broadcasting. For example, Charles Herrold of San Jose, California sent out broadcasts as early as April 1909 from his Herrold School electronics institute...

received national attention, but far less known at the time was Charles "Doc" Herrold of San Jose, California, who is generally credited with being the...

June 2023. The episode follows Davis (Samuel Blenkin) and Pia (Myha'la Herrold) as they make a true crime documentary in Davis's run-down hometown in...

Retrieved June 14, 2008. Greb, Gordon and Mike Adams (August 15, 2003). Charles Herrold, Inventor of Radio Broadcasting. McFarland & Company. p. 129. "About...

traces its history to a number of predecessor stations operated by Charles Herrold dating back to 1912; 8MK/WWJ in Detroit, Michigan, which began regular...

became part of widespread culture were transmitted including those by Charles Herrold in San Jose, California in 1908. Radio hobbyists continued to experiment...

Schemmel Tile Company is founded in San Jose 1921 San Jose engineer Charles Herrold, after experimenting with radio broadcasting since 1909, receives a...

2XG) was officially deleted by the government. From 1912 to 1917, Charles Herrold made regular radio broadcasts, but operated an arc-transmitter. He...

KDKA in November 1920, and Charles Herrold's series of identifiers from 1909 in San Jose, California: first "This is the Herrold Station" or "San Jose calling"...

radiotelephone research during this period, including Lee de Forest and Charles Herrold. Despite their best efforts, arc-transmitters would prove to be too...

recorded its first regular weekly broadcasts in 1912, conducted by Charles Herrold in San Jose, California. The De Forest Radio Telephone and Telegraph...

March – Einar Dessau uses a shortwave radio transmitter in Denmark. Charles Herrold begins experimental voice transmissions in San Jose. KCBS (AM) (formerly...

stations operating under Experimental licenses, most prominently by Charles Herrold in San Jose beginning in 1912, and, beginning in 1920, by Lee de Forest's...

broadcaster was a Stanford University dropout – former science major Charles David Herrold – who was transmitting regularly scheduled programs starting in...

England; Michael McGimpsey, politician, in Donaghadee, Ireland Died: Charles Herrold, 62, American inventor and pioneer radio broadcaster Two days of parliamentary...

Wyndham (series 1–2), Managing Director (MD) of FX at Pierpoint Myha'la Herrold as Harper Stern, an underestimated, intelligent, and talented young woman...