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 cave radio. Show all posts

Showing posts with label cave radio. Show all posts

23 Dec 2025

Cave radio book

There is no way I would be climbing through narrow, dark, wet tunnels deep underground, but I have always been fascinated by underground c...

14 Aug 2010

Old UK radio and TV clips

If you were young in the UK in the 1950s you may be interested in these two sites dealing with radio and TV in the 1950s. There are many old...

12 Mar 2010

Sub-9kHz induction comms resource

John F5VLF/G3PAI has brought a very useful website about induction mode communications below 9kHz to my attention. This site is mainly abo...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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