Link Budget Calculator

Calculate complete RF link budget including EIRP, path loss, received power, and link margin.

Link Parameters

TX Power (dBm)

Cable Loss (dB)

Antenna Gain (dBi)

Frequency

Distance

Additional Loss (dB) - fading, rain, etc.

Antenna Gain (dBi)

Cable Loss (dB)

Sensitivity (dBm)

Required Margin (dB)

LINK OK

Link Margin: 32.95 dB (required: 10 dB)

-57.05

RX Power (dBm)

38.00

EIRP (dBm)

TX Power+30.00 dBm

TX Cable Loss-2.00 dB

TX Antenna Gain+10.00 dBi

EIRP+38.00 dBm

Free Space Path Loss-100.05 dB

Additional Losses-3.00 dB

RX Antenna Gain+10.00 dBi

RX Cable Loss-2.00 dB

Received Power-57.05 dBm

Maximum Range14.04 km

Minimum TX Power7.05 dBm

Free Space Path Loss100.05 dB

Total Path Loss103.05 dB

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

ðŸ“š

Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.