RF Link Budget Calculator

Transmitter Parameters

Transmitter Power ⓘ Power output from the transmitter

dBm

Antenna Gain ⓘ Gain provided by the transmitting antenna

dBi

Cable Loss ⓘ Signal loss in the transmitter cable

Connector Loss ⓘ Signal loss in connectors

Other Losses ⓘ Any additional losses at the transmitter

Antenna Gain ⓘ Gain provided by the receiving antenna

dBi

Receiver Sensitivity ⓘ Minimum signal level required for acceptable performance

dBm

Cable Loss ⓘ Signal loss in the receiver cable

Connector Loss ⓘ Signal loss in connectors

Other Losses ⓘ Any additional losses at the receiver

Frequency ⓘ Carrier frequency of the RF signal

MHz

Distance ⓘ Distance between transmitter and receiver

Fading Margin ⓘ Extra margin to account for signal fading

Atmospheric Loss ⓘ Signal loss due to atmospheric conditions

EIRP 34.50 dBm

Free Space Path Loss 105.56 dB

Received Signal Level -72.56 dBm

Link Margin 7.44 dB

0 dB 10 dB 20 dB 30 dB

⚠️ Poor

Link has minimal margin. Likely to experience outages.

Sensitivity

-72.56 dBm

Required for Link

-80.00 dBm

Link Name

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