Our first paper about the drone calibrator is out on the arxiv today! Using data from our field tests last year we measured the stability and accuracy of the beam maps. The repeatability compared well to measurements made using satellites (thats the plot on the right) and the measurements matched up well with the models. There were a few issues though. The main thing seems to be the stability of the antenna attachment to the drone. We’re sensitive to even a degree of rotation! Overall, though the thing worked a lot better than I was expecting, quite frankly.
The paper is here: https://arxiv.org/abs/1610.02607