Re: [ARSCLIST] NBC chimes and routing

[John Ross <johnross@xxxxxxxxxxx>]

Without a lot more research, I can't add much to the configuration of 
AT&T lines for the NBC radio networks, but I do know that the 
pre-satellite NPR network lines were split into  "round robin" loops 
through the east and midwest, and an "overhead" connection that 
started in Colorado and moved through the southeast and then up the 
west coast from San Diego to Seattle, then east to Eastern Washington 
and Montana.

The round-robins allowed any station on that part of the network to 
originate programming to the whole network with a simple patch at the 
nearest AT&T program operating center.

I have a 1978 system map and the technical details from the NPR 
Engineering Handbook if anybody's interested.

I would assume that NBC, CBS and Mutual all used similar routing back 
in the day.

John Ross