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 bpw34. Show all posts

Showing posts with label bpw34. Show all posts

6 Jan 2012

Optical receiver head completed

481THz optical receiver with 100mm lens I now have a 100mm lens set-up in some grey drainpipe with 4x sighting scope attached on a tripo...

5 Jan 2012

Lightbeam receiver progress

Today I did the part of projects I hate most - drilling holes in aluminum boxes. I can never find the right size drill bits, they are blunt ...

21 Nov 2011

More 481THz lightbeam progress

670nm receive head and converter to 80m Today I did some further light beam experiments, this time using a 25kHz modulation signal on th...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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