A wireless hotspot device is equipped with a directional antenna. A method optimizes a bitrate of the device in a mobile network with distributed cells, each cell covered by a fixed transceiver. The method includes: rotating the antenna substantially azimuthally at least 90 degrees, in steps of N degrees, wherein N is a fixed or variable number; scanning for available cells for each step of rotation; observing a signal to noise ratio for each available cell in each step; saving an optimized azimuthal direction for each available cell, the optimized direction corresponding to the highest signal to noise ratio; repeating the steps for a number of frequency bands, setting up a data connection and running a speed test for all optimized directions of each frequency band; automatically selecting an azimuthal operation position of the antenna based on the speed tests; and moving the antenna to the operation position.