Vintage Facsimile Books

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Vintage Facsimile Books

Postby Harry Dalek » Tue Jan 20, 2015 7:02 pm

Came across these books on facsimile on sending images via radio ,bit like the early television books posted some time back .
Attachments
electricaltransm00martrich.pdf
(15.03 MiB) Downloaded 646 times
telegraphictrans00bakeuoft.pdf
(7.2 MiB) Downloaded 646 times
visionbyradiorad00jenkrich (1).pdf
(8.74 MiB) Downloaded 643 times
wirelesstransmis00martuoft.pdf
(8.42 MiB) Downloaded 617 times
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Harry Dalek
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