Software Program CD

[Andre Leao]

Preserved...



https://planetasinclair.blogspot.com/20 ... d-mia.html

✓ PROCESSED

DH 31/03/23

[PeterJ]

RTTY is Radioteletype @Andre Leao. Software like this would have been linked to an HF (Higher Frequency) transceiver.

https://en.wikipedia.org/wiki/Radioteletype

A similar program, is this one:

https://spectrumcomputing.co.uk/entry/8 ... ctrum/RTTY

This is an example of RTTY in use:

[smurphboy]

Spot on. RTTY is still used today by radio amateurs. Not just on HF either, a few people use RTTY on VHF and higher.

I might see how this works. It didn't appear to be making noise so maybe it's using serial.... RTTY uses 2125 hz and 2295 hz as the mark and space tones.

[smurphboy]

Ahhh, looking in memory it references that it drives a CX81-RTY. Can't seem to find a reference to it on Google, so I'm asking in a radio Discord...

[Andre Leao]

Thanks Peter

[smurphboy]

I asked around in amateur radio world and it is thought it might drive this:

https://worldofspectrum.net/pub/sinclai ... OPoort.pdf

and is based on the work of this Danish inventor:

https://da.wikipedia.org/wiki/Jan_Soelberg