Currently I am using a a wireless router (Asus RT-N12) and Wireless USB adaptor (TL-WN722N). Both of these have removable external antennas (RP-SMA connectors).
I want to know the correct and safe way to change an antenna on a wireless device.
Should I power of the device first? Will changing an antenna while the device is running damage the antenna and/or hardware?
I'm quite new to wireless technology and have minimal background with electronics. I did a quick search on the web but didn't find any answers to my question.