Topband: Change in 75/80/160M conditions in CO

[Tom Rauch]

The aurora level. The aurora level on the good day was around 2. On the bad
days 7 or 8.

I watch the aurora level more than anything else, and it mostly works. Try
it and see.

> Perhaps those of you who have studied lowband propagation can suggest the
> reasons for the much better than average conditions in the western USA to
> northern Europe on the night of the 12th and the well below average
> conditions 24 hours later. If that statement of conditions is correct, as
> it appeared to be from my own monitoring,  what factors explain it?