Quote:card sometimes turns on at system startup and sometimes not? [it has nothing to do with drivers or systems, tested on viście / xp / ubuntu] problem always the same
janko_wodnik wrote:How will you know which antenna has the stronger signal at the moment?
The strength of the signal received / transmitted by the antenna depends on many factors, including the position of the laptop in space, but also the quality of the antennas.
It is impossible to say "by eye" whether an additional antenna will always improve the quality of WiFi work, or will it be just an additional piece of metal collecting interference. But for something, ThinkPad's two antennas come pre-installed.
janko_wodnik wrote:For economic reasons :)
The second antenna can be used as an antenna for the BT module, which normally has a dedicated one. This way you have up to three antennas in one laptop that can be connected to the "Main" and "Aux" connectors.
As a laptop has a plastic housing, the signal can easily pass through it, but if the housing is made of metal, one antenna can be blocked by the housing and two are used. After all, there are plastic plugs on the antennas.
For the case under consideration, discussions about the reasons for the multitude of antennas are rather unnecessary, because the colleague has a different problem and you need to see what model of WiFi card he uses. After all, there is a problem, and therefore the topic was assumed.
You have two wired adapters, one of them is reporting itself as a PCI device, why is that?
How many mPCI-e slots do you have and is the second one possibly occupied?
iie wrote:Do you think this one would be good?