Channels 70-83 were already taken away in 1983 for Cell Phones.
In 1983, Motorola DynaTAC
was the first FCC approved mobile phone.
The first mobile (cellular) licenses in the US
were granted by the FCC in 1968 though...
But channels 52-69 which are going away next... Not 53-69.
for official FCC PDF on subject
FCC PDF Quote:
"Another benefit of this option is that it would allow the spectrum outside the core region to be recovered without a repacking that would force many broadcasters to move to new channels twice. Specifically, this option would permit the eventual recovery of 138 MHz of spectrum nationwide.
This spectrum would be obtained from the lower VHF channels,
i.e. channels 2-6 (54-72 MHz and 76-88 MHz),
and upper UHF channels, i.e., 52-69 (698-806 MHz).
In addition, this option may facilitate the early recovery of a portion of this spectrum.
For example, it may be possible to recover 60 MHz of spectrum almost immediately from the band 746-806 MHz, i.e., UHF channels 60-69
While protecting the relatively few full-service analog and digital broadcasters in that spectrum.
In this regard, we note that only 97 of the almost 1600 television licensees operate on channels 60-69."
Hope this helps claify things.
Yes, info IS right from the (FCC's) horse's(-Ass's) proverbial mouth.