首次接触直放站，问个功率计算方面的问题

crazypilgrim

<p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; POSITION: relative; TOP: 3pt; mso-bidi-font-size: 10.0pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">一台直放站最大输出功率为<span lang="EN-US">33</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; POSITION: relative; TOP: 3pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="mso-spacerun: yes;">&nbsp;</span>dBm，最大增益为90 dB。当输入功率为-65 dBm时，输出功率为<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u>dBm；当输出功率为-40dBm时，输出功率为<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u>dBm。</span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; POSITION: relative; TOP: 3pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span></p><p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; POSITION: relative; TOP: 3pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">想问问功率都怎么计算的。有没有相关方面的资料</span></p>