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 telegraph. Show all posts
Showing posts with label telegraph. Show all posts
11 Oct 2016

Before radio

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See http://www.newmarketlhs.org.uk/shuttertelegraph.htm . A reminder that even in the days before radio, messages could be sent a long wa...
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Roger G3XBM
Burwell, Cambridge, United Kingdom
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