J_Freq_FIG06

モバイル無線通信のアップリンク(UL)とダウンリンク(DL)の違いの説明
Explanation of the difference between uplink (UL) and downlink (DL) in mobile radio communications

Webページ用画像：Posted in Teppei Log (https://teppeilog.com/)
Prepared by Teppei Nagumo　(南雲鉄平)