Worldwide Loran-C Signals and Space Weather
November 2008

Receiver: location Nuernberg 49.4159 N 11.1347 W, 8 m vertical antenna, direct conversion to audio, oscillator 99.79 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

New feature since Nov. 2008:
- Nov. 23rd: DSB mixer at band center replaced by 11.6 kHz IF conversion (3 dB SNR gain, less ringing)
- Monitoring unidentified Chayka master on GRI 5960
New since Oct. 2008:
- Monitoring unidentified Chayka chain on GRI 5990
- Averaging both GRI's of most dual rated stations

LoranView index
NOAA Space Environment Center