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 ka7oei. Show all posts

Showing posts with label ka7oei. Show all posts

27 Feb 2012

Optical RX schematic

Schematic of the G3XBM optical RX Several people have asked for the schematic of the optical receiver used in the recent "over th...

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...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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