Phonopaper (and questions - maybe to Volhout???)


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TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6546
Posted: 08:11pm 05 Jan 2023      

FFT displays have been used for many years as a tuning aid for FAX RTTY and slowscan TV and looking for signals over a wide frequency range.
Usually referred to as "waterfall display"

The picomite can do FFT so creating the image is easily doable.


Example of a waterfall display of a HF FAX signal received this morning.
(NOT using a picomite or any other 'mite)

Jim