2:14am PST - December 25th, 2020
Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAthKdo #hamradio https://t.co/qusdYrILxC
1 retweets 0 likes - wa1gov (@wa1gov)Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAthKdo #hamradio https://t.co/qusdYrILxC
1 retweets 0 likes - wa1gov (@wa1gov)