GNURadio Arduino Signal Test Setup 2 sudo stations

GNURadio Arduino Signal Test

Setup • 2 sudo stations • • Pi 4 Hack. RF Amplifier Antenna • Both controlled manually (1 by hardware, 1 by remote desktop) • Recording 10 e 6 samples centered at 433 MHz sampling at 2 MSPS • 5 seconds of data • 10 data sets (pairs) were recorded

Transmitter • UART HC-12 Antenna at 433. 4 MHz on an Arduino Board • Transmitting 140 random letters every second

Offline Processing – Matlab (Data Set 1) 97424 sample delay = 48. 712 ms

Offline Processing – Matlab (Data Set 2) 29545 sample delay = 14. 7725 ms

Offline Processing – Matlab (Data Set 3) 66673 sample delay = 33. 3365 ms

Offline Processing – Matlab (Data Set 4) 84573 sample delay = 42. 2865 ms

Offline Processing – Matlab (Remaining Data) Set 5: 47468 Delay (23. 734 ms) Set 8: 61926 Delay (30. 963 ms) Set 6: 56762 Delay (28. 381 ms) Set 7: 44931 Delay (22. 4655 ms) Set 9: 94315 Delay (47. 1575 ms) Set 10: 125534 Delay (62. 767 ms)

Summary • Time delays were found using a reference signal • These time delays were due to latency in the recording process • In order to properly analyze the ref signal data, filtering and demodulation are necessary • These processes do not sacrifice time accuracy or sample data • Repeatable results were found across the 10 data sets