A measurement device is disclosed, having a receiver/transmitter with extended instantaneous dynamic range. The receiver/transmitter includes at least one input port, which is configured to receive signals; a primary receiver/transmitter coupled to the input/output port via a primary path; and a plurality of auxiliary receivers/transmitters. The plurality of auxiliary receivers/transmitters are coupled to the input/output port via secondary paths. The attenuation of each of the secondary paths is higher than the attenuation of the primary path.