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 daylight. Show all posts

Showing posts with label daylight. Show all posts

26 Dec 2015

More on lighter evenings - NOT amateur radio

At the moment the evenings are lighter for 5 mins more at dusk than a week ago. The light follows a sine wave curve and the rate of change ...

28 Sept 2014

Long sunny days no more? Until next year.

As the nights get longer and the days get shorter in the Northern Hemisphere, it is useful to know when the sun rises and sets. A useful UK ...

4 Feb 2012

481THz update: 1.6km test

Today I did my first test beyond the end of my street and in daylight. I set up my 1.082kHz subcarrier CW beacon and 100mm optics pointin...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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