Link Budget - ThomasMontano/Hermes GitHub Wiki

Link budget for 2.4 GHz at 100km

Gain Calculations:

Value Unit Description
20 dBm TX Power
5 dBi Transmit Antenna Gain
24 dBi Receive Antenna Gain
-1 dB Miscellaneous Loss

Total Gain: 48 dB

Free Space Path Loss:

FSPL = 20log10(distance) + 20log10(frequency) + 32.44

FSPL = -140 dB

Power Received:

Pr = PtGtGr (λ/4πR)2

Final Link Budget:

Received_Power_Watts = 1.9761922420637e-11

Received_Power_dBm = -77.0417080994757

Noise_Floor_dBm = -122.329996588791

Theoretical_SNR = 33.7931634517302

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