In a method of checking the integrity of an antenna arrangement (2) of a transmitter (1), which transmitter (1) comprises a transmitter driving stage (4) for driving the antenna arrangement (2) with a driving current (is), a first value (Isupply) indicative of the driving current (is) is determined. After that, it is detected whether the driving current (i) is outside a predefined current range by comparing the first value (Isupply) with a predefined first value range. If the first value (Isupply) is outside the first value range, then it is indicated that the antenna arrangement (2) is not in sound condition. The antenna arrangement (2) is comprised of an antenna (5) and a tuning network (6) connected between the antenna (5) and the transmitter driving stage (4).