2:14pm PST - December 15th, 2021
Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAtzl4W #hamradio https://t.co/X6dMTA0hgL
0 retweets 0 likes - wa1gov (@wa1gov)Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAtzl4W #hamradio https://t.co/X6dMTA0hgL
0 retweets 0 likes - wa1gov (@wa1gov)