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 4060. Show all posts

Showing posts with label 4060. Show all posts

7 Mar 2013

Progress on the new 481THz beacon TX

Today I made a start on the new optical QRSS3 beacon. This time, the circuit has some improvements: a continuous sub-carrier option and a ch...

19 Jun 2010

Stable audio frequency tone generation (for VLF QRSS)

Next week I want to try QRSS3 with my earth mode VLF system to extend the range. As in the test this week, Spectran software will be used m...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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