With the start of the Spanish PAZ system, another earth observation
satellite has become available to the scientific community. Following
the launch of the PAZ science phase, we performed a number of ground
experiments using different modes of the satellites SAR instrument,
measuring the transmitted radar signal as well as its ground reflections
using the HITCHHIKER receiver. The data acquired in these experiments is
analyzed and used in collaboration with the PAZ calibration team at INTA
to characterize the PAZ instrument and thus verify the system
calibration. Further we obtained bistatic radar images from the data of
the HITCHHIKER ground receiver.