Worldwide Loran-C Signals and Space Weather
December 2009

Receiver: location Nuernberg 49.4159 N 11.1347 W, 8 m wire antenna in a tree, IF 11.8 kHz, bandwidth 22 kHz
Vertical time scale: 20 minute/pix with hourly ticks (quarter resolution of original 5 min averages)
Horizontal time scale: 22050 samples/s, 1.09 ms around expected pulse incidence
Colours: brightness proportional to fieldstrength (1/r distance and power corrected), colour hue shows 100 kHz carrier phase relative to Sylt groundwave

- Minami Torishima (8930X) has gone off air on Nov 30 - see announcement.
- Unid Chayka 5960 irregular and daytime only. Since Dec 20, TAI delay increased by approximately 17.85 ms each day.
- Several C-class solar flares produced visible SID transients, eg. on Dec 23, 10:15.

LoranView index
NOAA Space Environment Center