Commcrete — Link Quality Calculator

Waveform

Select Waveform

User A — Node Alpha

Device Model

User B — Node Beta

Device Model

Signal Quality

Select a waveform and both device models

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A → B

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dB margin

B → A

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dB margin

Satellite: AF1 (Alphasat) These values are baked into every margin shown above. Real-world performance varies with weather, antenna pointing accuracy, and position within the satellite beam. Tx Frequency (1650 MHz) Rx Frequency (1550 MHz) Off-Beam Loss (2 dB)