[BC] WBZ as a IB

[Dale H. Cook]

At 07:06 AM 7/8/2005, Dan Strassberg wrote:

>Westinghouse first put WBZ on the air from a Westinghouse factory in
>Springfield. A year or so later, a synchronous transmitter was added to
>serve Boston and the WBZA calls were assigned here.

It didn't happen quite that fast. WBZ went on the air from the East 
Springfield factory in 1921 on 900 kHz. The synchronous broadcast began in 
1924 on 990 kHz when WBZA was built, but the calls weren't flipped until 
1931 when the Millis site was built. When the current Hull site was built 
in 1940 the stations were still on 990, so when the NARBA agreement went 
into effect in 1941 and the stations moved to 1030 that affected the 
cardioid pattern at Hull, since the towers were spaced for 990.

Dale H. Cook, Chief Engineer, Centennial Broadcasting, Roanoke/Lynchburg, 
VA - WZZI / WZZU / WLNI
http://members.cox.net/dalehcook/starcity.shtml