2:14pm PST - January 9th, 2022
Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAthKdo #hamradio https://t.co/YBfQT3sbi3
1 retweets 2 likes - wa1gov (@wa1gov)Global Optimum NVIS Frequency Map Based Upon Hourly Ionosphere Soundings via https://t.co/6WcAAthKdo #hamradio https://t.co/YBfQT3sbi3
1 retweets 2 likes - wa1gov (@wa1gov)