Narrow Band TV (NBTV)

Partly because bandwidths are very low,  there has been a revival of interest in NBTV systems similar to the early TV transmissions by Baird in the 1920s and 1930s.

There is even a Televisor kit available for about £40 delivered (in the UK) with a CD with some still and moving images and its own test card generator. I am quite tempted!

The televisor kit is available for £35.94 + shipping from (search for televisor). This is compatible with the 32 line standard of the NBTV Association.  The NBTV Association home page is at .

Bandwidths are audio only, so a tape recorder or CD are fine. Over the air transmissions only require audio bandwidths too. Of course, with just 32 lines don’t expect brilliant images!

Roger Lapthorn, G3XBM, is a regular contributor to and writes from Cambridge, England.

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