[PRCo] Re: More than you wanted to know about Pittsburgh TV

[Derrick J Brashear]

On Fri, 23 Apr 2004, Fred Schneider wrote:

> Yes guys, I know this has nothing to do with trolleys in Pittsburgh.  So what!
> You'll find delete key over to the right.
>
> About the same time as that channel shuffle, WGAL TV in Lancaster changed from
> channel 4 to 8, allegedly because of interference with 4 in Washington DC.   Was

See the FCC's 1951 "Sixth Report and Order" (issued 1952) for details of
the channel swapping. Basically, the original VHF spacing requirements
didn't take into account some of the phenomena which might cause
interference.