Shortwave broadcasting in the United States

Westinghouse simulcast the programs of KDKA in Pittsburgh on shortwave in order to relay them more cheaply to sister stations KDPM in Cleveland and WBZ in East Springfield, Massachusetts.

[5] Ultimately shortwave relays for network programming was determined to be inferior to dedicated telephone line connections, and the transmissions to KFKX ended, with the Hastings operation closing on June 1, 1927.

[6] In 1922, a 1 kW shortwave transmitter was installed at Westinghouse's factory in East Pittsburgh, Pennsylvania, with call sign 8XS.

[7] This was joined by 8XAU in 1924,[8] which, after the original 8XK was deleted later that year,[9] changed its call sign to the historically significant 8XK,[10] and then W8XK in 1929, with its transmitter power increasing to 40 kW by 1937.

The program was broadcast over shortwave to the Far North during the winter months, when mail service was impossible, and consisted of personal messages to RCMP officers, missionaries, trappers, and others from family and friends, music, and news.

CBS used shortwave to support its Latin American international network, which consisted of 64 stations located in 18 countries and GE's KGEI opened in San Francisco in 1939, transmitting to Asia.

Two such stations were WRNO in New Orleans and KUSW in Salt Lake City, both of them with a rock and roll music format.

WBCQ has been a success by brokering much of their airtime to fringe cults like Brother Stair and World's Last Chance, while also carrying some music and entertainment programs.

Other private shortwave stations that air a mix of religious and non-religious programs include WRMI (which also relays several International broadcast services),[22] and WWCR.

Some European nations have recently begun allowing privately owned shortwave stations on a far more limited scale.