The invention relates to pulverulent coreshell polymers for the preparation of a plastisol, which have surprisingly low water absorption. The method comprises capturing a first image using a sensor array. The plurality of ancillary terrestrial components include a plurality of ancillary terrestrial component antennas configured to provide wireless radiotelephone communications using at least one of the satellite radiotelephone frequencies in a radiation pattern that increases radiation below the horizon compared to above the horizon.