Roger G3XBM's (Mainly) Amateur Radio Blog

Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.

Showing posts with label nbtv. Show all posts

Showing posts with label nbtv. Show all posts

13 Oct 2019

Mechanical TV in the 21st century

When TV first appeared it was a 30 line mechanical system pioneered by John Logie Baird. These days there are still 30 line TV enthusiasts, ...

10 Feb 2015

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 ...

4 Jul 2013

30 line TV

It is a long time since the Baird 30 line TV system was replaced by 405 line and then 625 line TV here in the UK. However, there are still e...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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