Link Budget Tools

Use this calculator to estimate expected RSSI for line-of-sight links between your TNA 300 series access points & clients. This is an estimation only and does not guarantee real-world outcomes. For tips and additional information about this tool, please visit the usage guide on the support site.

Link type Select your type of link.
Access point model
Station model
Access point antenna kit
Station antenna kit
Target distance (m) & rain zone
Target modulation
Loss due to O2 at n/a: HIGH
Rx Sensitivity
Expected RSSI
Total Signal Budget
Coverage Area

Use these calculators to perform additional link budget calculations. The Rain Rate to Attenuation calculator allows you to view attenuation by channel for a given rain rate. The Signal Budget to Rain Rate calculator allows you to calculate the max rain rate a link with the given budget and distance can handle before it drops, provided for each channel.

Rain Rate to Attenuation
Rain rate (mm/hr) Help me choose
Results: Attenuation by channel (dB/km)
Ch. 1 Ch. 2 Ch. 3 Ch. 4 Ch. 5 Ch. 6
Signal budget to rain rate
Link budget (dB)
Distance (m)
Results: Rain rate by channel (mm/hr)
Ch. 1 Ch. 2 Ch. 3 Ch. 4 Ch. 5 Ch. 6
Reference Tables
Est. max distance / channel (TNA-301 to TNA-302)
Ch. 1 Ch. 2 Ch. 3 Ch. 4 Ch. 5 Ch. 6
700m 650m 650m 800m 1350m 1350m
Rain Rate Key
Type of Rain Rain Rate Loss
Light 2.5 mm/hr 1.5 dB/km
Medium 12.5 mm/hr 6 dB/km
Heavy 25 mm/hr 10 dB/km
Downpour 50 mm/hr 17 dB/km
Tropical Storms 100 mm/hr 30 dB/km

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