  In recent years, irrigations have been built on dry areas in Majes-Arequipa.
Over time, the irrigations water forms moist areas in lower areas, which can
have positive or negative consequences. Therefore, it is important to know in
advance where the water from the new irrigation will appear. The limited
availability of real-time satellite image data is still a hindrance to some
applications. Data from NOAA's environmental satellites are available fee and
license free. In order to receive data, users must obtain necessary equipment.
In this work we present a satellite data acquisition system with an RTL SDR
receiver, two 137-138 Mhz designed antennas, Orbitron, SDRSharp, WXTolmag and
MatLab software. We have designed two antennas, a Turnstile Crossed dipole
antenna with Balun and a quadrifilar helicoidal antenna. The antennas parameter
measurements show very good correspondence with those obtained by simulation.
The RTL SDR RTL2832U receiver, combined with our antennas and software, forms
the system for recording, decoding, editing and displaying Automatic Picture
Transmission (APT) signals. The results show that the satellite image
receptions are sufficiently clear and descriptive for further analysis.
