2:14pm PST - December 30th, 2021
Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAthKdo #hamradio https://t.co/A3Yr2oxV24
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/A3Yr2oxV24
1 retweets 0 likes - wa1gov (@wa1gov)