research-note

Unknown VHF Burst -> Real-Time APRS Monitoring Pipeline

Research notes on passively identifying APRS traffic near 144.800 MHz with BladeRF, SDR++ IQ WAV captures, Python signal extraction, AFSK1200 decoding, Dire Wolf validation, and log-only realtime protocol analysis.

#APRS#AX.25#AFSK1200#BladeRF#Dire Wolf
research-note

TETRA Control-Channel Passive SDR Research Notes

Passive SDR notes on TETRA control-channel metadata exposure, encrypted resource-grant visibility and the absence of readable user-content recovery.

#SDR#TETRA#bladeRF#radio-security#metadata-analysis