10 meters – 28–29.7 MHz – Best long distance (e.g., across oceans) activity is during solar maximum; during periods of moderate solar activity the best activity is found at low latitudes.
10 米 - 28 - 29.7 MHz - 最佳长距离（例如跨越海洋）活动是在太阳最大值期间;在适度的太阳活动期间，最低活动发生在低纬度地区。