Not broadcast, but there was marine longwave for point to point telegraphy. KPH would send messages to ships at sea at about 500kHz and it did broadcast news, w

Not broadcast, but there was marine longwave for point to point telegraphy. KPH would send messages to ships at sea at about 500kHz and it did broadcast news, weather albeit in Morse. It still exists as a museum and broadcasts occasionally. https://www.nps.gov/pore/planyourvisit/kph_treetunnel.htm https://www.nps.gov/pore/planyourvisit/kph_treetunnel.htm KFS still has a transmitter antenna farm in Palo Alto off 101 with a receiver antenna farm in Half Moon Bay. https://www.radiomarine.org/historic-coast-stations/kfs-san-francisco https://www.radiomarine.org/historic-coast-stations/kfs-san-... https://coastview.org/2024/01/28/kfs-high-frequency-receiver-half-moon-bay/ https://coastview.org/2024/01/28/kfs-high-frequency-receiver...