GNU Radio OOT Module for telemetry decoding of LilacSat-1, LilacSat-2 and BY70-1 satellites.

Tested on GRC 3.7.8 and 3.7.10.1, and ubuntu 14.04 LTS.

Currently this OOT module does not work on ubuntu 16.04 LTS. Please contact me if you can find a solution.

This project is supported by Harbin Institute of Technology.

Visit http://lilacsat.hit.edu.cn/ for more information.

• gr-csp
• construct 2.8 For telemetry parser
• feh For realtime image display

frontend_rx_*.grc in examples folder for different devices:

• frontend_rx_fcdpp.grc for Funcube Dongle Pro Plus (gr-fcdproplus needed);
• frontend_rx_uhd.grc for USRP;
• frontend_rx_rtl.grc for RTL-SDR.

demod_node*_*.grc in examples folder for different modulation and rate:

• demod_node1_bpsk_9k6.grc for 437.200 MHz 9600 bps RRC-BPSK telemetry;
• demod_node1_afsk.grc for 437.200 MHz 1200 bps AFSK-FM telemetry;
• demod_node1_ccsds_fm.grc for 437.200 MHz 300 bps subaudio baseband telemetry;
• demod_node4_4k8.grc for 437.225 MHz 4800 bps GFSK telemetry.

Use frontend_rx_*.grc, demod_node1_bpsk_9k6.grc and demod_node4_4k8.grc by default.

proxy_publish is also included in examples folder for upload telemetry for display.

A Live CD is also provided: http://lilacsat.hit.edu.cn/?page_id=257

Manual: http://lilacsat.hit.edu.cn/wp-content/uploads/2015/09/LilacSat-2_Live_CD_User_Manual.pdf

A IQ record of LilacSat-1 downlink: https://drive.google.com/open?id=0B_j7kp3QtCNaejVlWDFEVGxiR2M

It can be used for a evaluation of the FM uplink codec2 downlink repeater.

A bit stream record of BY70-1 downlink: https://drive.google.com/open?id=0B_j7kp3QtCNaa0I3Nng4b3Z5QTA

It can be used for a evaluation of the telemetry downlink and image downlink.