The North American Regional Broadcasting Agreement refers to a series of international treaties that defined technical standards for AM band radio stations. These agreements also addressed how frequen
WLS, Chicago, advertisement promoting its March 29, 1941, move from 870 to 890 kHz
Radio dealer advertisements soliciting customers needing help in resetting the mechanical push buttons on their console receivers.
KYW is a commercial AM radio station licensed to serve Philadelphia, Pennsylvania. It is one of the oldest continuously operating radio stations in the United States, originating in Chicago before mov
North American Regional Broadcasting Agreement
…up 40 1030 1000 WHO up 40 1040 1010 WHN (now WEPN) up 40 1050 KQW (now KCBS) 740 WNAD (now KWPN) 640 WNOX (now WNML) 990 — new Mexican clear 1050 1020 KYW up 40 1060 1030 CFCN (now CBR) down 20 1010 CKLW 800 1040 WTIC KRLD KWJJ (now KRSK) up 40 1080 1050 KNX up 20 1070 shared with CBA (now silent) 1060…
"Miss Forster singing [a lullaby] for her audience of a hundred thousand" from Chicago (1922)
KYW's former transmitter building in Bloomingdale Township
Station advertisement announcing its move to Philadelphia (1934)