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This repository will have the gnuradio hack rf Linear transponder
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IQ_transponder
Amsatsa_2018_Conf_Linieare transponder_1 [Autosaved].pptx
LICENSE
Lineare_transponder_rtl_hackrf.grc
README.md
Working_Lineare_transponder_rtl_hackrf_agc_v3.grc
Working_Lineare_transponder_rtl_hackrf_agc_v4.grc
Working_Lineare_transponder_rtl_hackrf_v1.grc
Working_Lineare_transponder_rtl_hackrf_v2.grc
top_block.py

README.md

hack_rf_linear_transponder

This repository will have the gnuradio hack rf Linear transponder and telemetry code.
The original concept was test with hackrf transmitter where after the new IQ transmiter board was made to relace hackrf.
The Gnuradio tansponder will run in a Ornage Pi with an transmitter board plug into Orange Pi.
The Receiver is an rtl dongle with a front end Saw filter on the same IQ modulator board
The Battery and Solar Voltage and TX power also get read from this IQ modulator board.

Project Status.

The software here is not yet compleet but do work independely.
Transponer work and telemetry work independely and need to be combiend in IQ signal.

Software

  1. Gnuradio transponder.
  2. Telemetry CW and PSK1200 (1200 2200khz).
    Telemetry data Calsign:SolarV,BatteryV,TXPowerV,TransponderMode,UseCount,ComandEcho,Time.
    The telemetry was tested on Bacar Balloon

Hardware

  1. IQ Modulator board for TX (500mW) (The IQ modulator board replace the hackrf board.) Board is not yet compleet (80%)
  2. RTL SDR Dongle for RX
  3. Orange PI zero

Todo

  1. Solar and Battery mangement and the battery.
  2. Permanent magnet Orieantation controle board.
  3. Space frame
  4. Antenna and ded_microswitch board.
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