楼主: 冰蚁
|
[工程技术] star-link |
| ||
| ||
点评
这种门限电平一般用 dBm吧,而且是负的, -xxx dBm。dBm和dB 差出去1000倍。
| ||
| ||
| ||
| ||
| ||
GMT+8, 2024-12-22 19:52 , Processed in 0.035815 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.2
© 2001-2013 Comsenz Inc.