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SYSTEM ANALYSIS

Link budget

Account for the complete RF path and compare received power against receiver sensitivity.

Link margin15.0 dBAbove sensitivity
01

Transmitter

Power at the source and transmit antenna gain.

EIRP26.0 dBm
02

Channel

Propagation loss plus cables, connectors, and other losses.

03

Receiver

Receive antenna gain and minimum usable signal level.

EQUATION

Pᵣ = Pₜ + Gₜ − Lpath + Gᵣ − Lmisc

Link margin is received power minus receiver sensitivity. Positive margin means the modeled signal exceeds the minimum usable level.