30m QRSS Spectrograms - Page 3
Scroll Left to Right to view a 3.75 hour period
Notes:
- 19:25 ending ... two beacons are clearly visible - one which transmits the pattern which comes just before the IFK pattern. This repeats every 10 minutes.
- 19:45 harmonically related interference - maybe mains borne, or from a motor. A slightly fat band of interference starts up at around 1880hz and stays persistent, growing in strength esp near 20:55.
- 20:05 - a blip near 1970hz.
