Various tools for transmission and reception on the QO-100 satellite amateur transponder bands. Includes everything I need (hopefully) to build a fully remote managed RF frontend to be placed on the roof, near the antenna while only bringing a few cables between it and the shack: power, two coax cables (TX IF and RX IF) and one UTP ethernet cable.

• Upconverter - Converts the VHF/UHF IF signal to the uplink frequency of the satellite (2.4 GHz)
• PA - Boosts the output power to 20 W (v1) and 250 W (v2) maximum
• PA Driver - Amplifier to drive the main 250W PA
• Directional Couplers - Experimental, manually constructed with simple scalpel cut traces on some Rogers RO4350B substrate
• GPSDO - GPS Disciplined Oscillator to generate different precise reference frequencies
• LNB Controller - LNB Bias and reference injection controller
• Digital Power Meter - Module to measure DC power, used to calculate the PA efficiency
• Digital RF Power Meter - Module to measure RF power, used to calculate the PA efficiency
• Generic Filter - Footprints to build up to 11th order Butterworth/Chebyshev filters
• Orange Pi Dock - Main board to house an OPi that will be the main brain of the system
• Relay Controller - Module to provide relay coil switching capabilities
• RF Switch - Implements a 5PST or 4PST RF switch for routing purposes
• PSU Interface - Interface board for HP Common Slot Power supplies
• SAW Filter adapter - Footprints for various SAW filter packages
• PA Bias controller - Bias generator and monitor for the Power Amplifiers
• PA TEC controller - Peltier cooler controller for the big PA
• I2C Buffer - I2C bus signal buffer
• Environment sensors - Sensor carrier board
• LoRa Transceiver - SX1276 breakout for LoRa experiments

• icyradio - IcyRadio Software Defined Radio to transmit and receive IF signals to the roof RF frontend
• icestorm - FPGA toolchain
• arm-none-eabi-gcc - MCUs toolchain
• Device CMSIS - CMSIS headers defining the MCU memories, peripherals, etc...
• Core CMSIS - CMSIS headers defining the ARM Cores
• armmem - ELF file analyzer (required for the MCU Makefiles to work)

• João Silva - vankxr

• JLCPCB for sponsoring most of the PCBs needed for this project.
• raplin for the work on reverse engineering the HP power supplies

The content of this repository is licensed under the GNU General Public License v3.0.