• 0 Posts
  • 4 Comments
Joined 13 天前
cake
Cake day: 2026年10月1日

help-circle
  • Dishronor@lemmy.ziptoLemmy Shitpost@lemmy.world•it's a hoax
    link
    fedilink
    arrow-up
    13
    ·
    edit-2
    11 小时前

    On the Earth, the signal fades due to the atmosphere. On the lunar rover, the antenna is small because there is no atmosphere, and on the Earth, the receiver is a giant round structure that measures meters or tens.

    And the antenna design is also very important. For example, a TV antenna transmits in all directions, while a lunar rover transmits strictly upwards