The characteristics of a device developed for measuring the angular distribution of the intensity of the output radiation of optical fibers in the far field are described. The device’s angular translation stage is controlled through a standard parallel port of a personal computer, and the experimental data are acquired and digitized using a standard sound card. The dynamic range of measurements is >50 dB. Examples of measurements performed with this device for single-mode optical fibers of several types are presented. Good agreement between the calculated and experimental data is demonstrated. The effect of the dynamic range of measurements in the far field on the accuracy of calculating the mode field distribution was investigated.