  A new readout technique was developed with the primary aim of keeping the
number of channels in the front-end electronics as low as possible when scaling
up the sensitive area of a Resistive Plate Chamber (RPC). The readout method
here presented significantly reduces the dependence between the detector area
and the number of electronic channels, without substantial reduction of its
performance: a 30 cm x 30 cm double stack multi-gap timing RPC was operated
during weeks with cosmic rays, achieving a 2D spatial resolution well below 1
mm and time resolution lower than 100 ps, while its efficiency was kept above
98%.
