A system for controlling a solar photovoltaic, PV, installation, comprising: - a plurality of solar trackers arranged in several parallel rows, with each row at a given distance; - wherein each solar tracker includes a plurality of PV panels connected electrically and the solar trackers of each row being independently rotatable around a rotation axis; - a first communication antenna and a second communication antenna associated to each solar tracker; - at least one tracker controller integrated in each solar tracker wherein the tracker controller comprises at least a processor and a motorized actuator; - an external control unit; and - a wireless bidirectional communications network between the rows of solar trackers using the cited first or second antennas,; characterized in that: - the parallel rows of solar trackers comprise a central head-tracker row and a plurality of sub-tracker rows, wherein the external control unit is connected to the solar trackers of the central head-tracker row and the antennas, of the solar trackers of the central head-tracker row being configured to wirelessly communicate with the antennas, of the solar trackers of the sub-tracker rows; - the first and second antennas (2, 3) are placed on opposing sides of central PV panels of each solar tracker in each row, wherein said opposing sides of the central PV panels are parallel to the rotation axis, and the rotation axis is oriented in a North-South direction; and - the processor of each tracker controller is configured to execute an algorithm to determine which antenna (2 or 3) is in an optimal position to transmit or receive data from the central head-tracker row to the sub-tracker rows in an east-west direction, wherein said algorithm operates using data of at least: - an angular position of each, first and second, communication antennas (2, 3) in relation to the rotation axis of each solar tracker; and - a strength and a quality measurement of a radiofrequency signal of each communication antenna (2, 3) for each solar tracker. - a plurality of solar trackers arranged in several parallel rows, with each row at a given distance; - wherein each solar tracker includes a plurality of PV panels connected electrically and the solar trackers of each row being independently rotatable around a rotation axis; - a first communication antenna and a second communication antenna associated to each solar tracker; - at least one tracker controller integrated in each solar tracker wherein the tracker controller comprises at least a processor and a motorized actuator; - an external control unit; and - a wireless bidirectional communications network between the rows of solar trackers using the cited first or second antennas,; - the parallel rows of solar trackers comprise a central head-tracker row and a plurality of sub-tracker rows, wherein the external control unit is connected to the solar trackers of the central head-tracker row and the antennas, of the solar trackers of the central head-tracker row being configured to wirelessly communicate with the antennas, of the solar trackers of the sub-tracker rows; - the first and second antennas (2, 3) are placed on opposing sides of central PV panels of each solar tracker in each row, wherein said opposing sides of the central PV panels are parallel to the rotation axis, and the rotation axis is oriented in a North-South direction; and - the processor of each tracker controller is configured to execute an algorithm to determine which antenna (2 or 3) is in an optimal position to transmit or receive data from the central head-tracker row to the sub-tracker rows in an east-west direction, - an angular position of each, first and second, communication antennas (2, 3) in relation to the rotation axis of each solar tracker; and - a strength and a quality measurement of a radiofrequency signal of each communication antenna (2, 3) for each solar tracker.