Recommend a successful configuration of the equipment for the next task. Has a laptop (no matter what), you need to buy a USB wi-fi adapter to which you want to hook up an external antenna Omni-directional or directional on the magnetic stand for a minimum of 7 dB.
Goal: to work on wi-fi in the commercial van, which often is about 100 metres from the source and is moving. Accordingly, the antenna needs to be on the magnet, so it can be conveniently rearranged. The signal strength is around -70dBm
How to take the adapter and with what antenna?