The slowest speed CW beacon I have ever heard is on 28.215. You may
have to listen for as much as a minute in order to catch the first
cycle of its 3 messages. This is the way that my first month or so of
contacts sounded when I was a Novice in 1969.
Then, the best example of key clicks I have heard in years can be
found on 28.265. You can hear the clicks in your receiver for at least
25 KHZ either side.
Both beacons are very readable into Mississippi right now.
Mike Duke, K5XU
American Council of Blind Radio Amateurs