This paper presents the project and implementation of a software defined radio (SDR) to be used primarily as part of a ground station transceiver for the geostationary Es'hail 2 satellite. The SDR contains an intermediate frequency frontend, a signal domain conversion block, and a digital signal processing stage, comprising highly reconfigurable devices: a field programmed gate array, a microcontroller unit with dedicated digital signal processing instructions, and an audio code/decode block.

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... e SDR operates with radiofrequency signals centered, at least, between 100 MHz and 900 MHz, presents a receiver noise figure below 4 dB and can transmit signals with a maximum power higher than 10 dBm. Due to the digital signal processing stage, the SDR can deal with several different types of modulations. Besides that, the SDR can be operated by a personal computer (via universal serial bus), or work standalone.