[AMRadio] Very low MUF

[Mike Duke, K5XU]

It is not uncommon during much of December, especially in the days 
around the winter solstice, for the maximum usable frequency to dip 
very low after sunset, and remain low for much of the night.

One evening last week, I could only hear WWV on 2.5 MHZ, and what I 
think was WWVH down in the noise on 5 MHZ. There were a few weak CW 
signals on the low end of 40 meters, but everything above about 7.150 
was empty.

The winter solstice occurs this Wednesday, Dec. 21, so look out for 
lower frequency propagation tricks especially this week.

-- 
Mike Duke, K5XU