45.90 MHz will probably be interesting during a band opening. 45.90 is used for wide area communications as a meteor burst (fast data reflected off the tails of meteors that enter the Earth's atmosphere) frequency by WPCE422 with an astronomical ERP.
I heard some activity on 2 UHF freqs that are licensed to Mt. Arlington the other day when they had an alarm call. 458.6125 and 453.3875 - didnt get a pl cause it was on my PRO-433. If anyone knows the PLs for these and what they are for. im believeing they are for crossbanding but not totally sure.