Worldwide Loran-C Signals and Space Weather
May 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

Remarks:
- May 12: GRI 5960 unid Chayka now active 24 hours.
- May 16: GRI's 7430 and 8390 came back on air.
- May 28: GRI 5990 unid Chayka currently about 3 ppb slow.
- GRI 5990 estimated transmitter locations (revised): 50.0 N 51.2 E (master), 47.6 N 43.2 E (western), 48.0 N 56.0 E (eastern), 54.6 N 51.2 E (northern secondary).

LoranView index
NOAA Space Environment Center